When I bought the Igolf caddie I really had some questions as to how good it would be. Especially since it is so much cheaper than its highly advertised competitor.
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br /Before buying, I checked to be sure the courses I play the most were in the database, they were all there.
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br /I did have a problem, when I first turned the unit on I received an error message when trying to install the software. I uninstalled the software and reinstalled it a couple of times but could not get the unit to work so I sent an email to technical support on Saturday morning. I expected to have a reply by Monday afternoon. Well I received a response within a couple of hours with an explanation and a link to download the latest version of the software. I did and everything worked great.
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br /I used the igolf caddie for the first time the next day (Sunday). The course I played had recently swapped the front nine and the back nine and when I turned on the igolf caddie I noticed that it still had the old configuration. Since I could select the hole independently it was not much of a problem.
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br /When I got home Sunday afternoon I emailed them to let them know about the front and back nines being swapped. This is on a Sunday afternoon, and they responded within hours saying the problem had been corrected. I downloaded the new setup and everything worked great.
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br /Since then I have used the igolf caddie about 10 times and it has been perfect everytime. I use the 'hole marker' feature to note some 'layup' points and 'carry' points.
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br /It has performed flawlessly and I believe pulled at least two strokes average off each game. By being able to see the distance to the 'front', 'back' and 'center' of the green I find myself making sure I carry at least to the front of the green. This has really helped.
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br /I'm a pretty aggressive golfer by nature and this helps me make better course management decisions and remain fairly agressive.
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br /Bottom line is that the product works great and my experience with their technical support has been nothing short of remarkable. They give the type of support I wish I could find in other companies.
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br /I'm still in the process of marking different points on some of the holes, but overall I'm in the low 80's now and hoping for some high 70's here pretty soon.
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br /A few tips, first get yourself some rechargeable batteries since the batteries go down to about 50% after one round. I bought NmH batteries and they work great, just don't forget to put the switch to 'rechargeable' on the igolf unit.
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br /Second, since I tend to scratch the front screen on my cellphone I could see me doing the same thing here, so I put a piece of clear shipping tape over the screen and then used a razor knife to cut around it. That way I can replace the tape when it gets scratched without damaging the screen (I do the same thing on my cellphone).
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br /Bottom line, the unit delivers as promised and I would recommend it to anyone wanting to improve their game.

This product is fantastic. The iGolf.com website has a database of all the already mapped courses. You must subscribe only once. They have an amazing amount of courses--in my area only two I play were not already mapped. You get one free mapping of your choice; they mapped the course I requested within 24 hours. You can buy additional mappings for $10.99. You can map courses on your own as well. Further, you can add up to 8 additional points per hole to already mapped courses (or your mapped course). This means you have front, back, middle, and whatever other 8 objects you care to measure. You push a button, wait around 4 seconds, and you're done. The transfer from a computer to the device takes 30 seconds or so per course. It's not like an iPod, but it's not obscene, either. Once a course is on the device, it is forever. You own it. Other GPS systems make you continuously subscribe to keep access. Not iGolf. Battery life is pretty good; I use rechargeable batteries (2 AA) and those are good for at least two rounds with the device left on continuously for around 5 hours each. The device is durable, sturdy, and even water resistant. It's quite accurate. I've compared it to both course markings and carts with GPS. The iGolf is probably +/- 1-2 yards at worse and often right on. More than accurate enough for anyone. Finally, it takes no more than a minute in my experience to synch with the GPS satellites. I've had no problem with signal strength on any course I've played. To summarize: this is a cost-effective tremendous product with outstanding customer support. It's a great product with a rapidly expanding course database. Even obscure courses can be mapped by the company. It's great. I think it will eventually beat SkyGolf and the others because of its price and customer service, for whatever that's worth.

Now legal for local tournament play if the USGA local rule allowing such devices (GPS Laser Rangefinders) is in effect. You definitely should own one of these before your next `club championship' if allowed by your local club.
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br /The iGolf system is a very high quality, low cost GPS solution for golfers. At $229 retail, . . . it is really worth the investment. I have a laser rangefinder, . . . but wanted a GPS system for the speed of getting yardages to set points (versus `shooting' the flag or point every time). I looked at a number of GPS options and choose the iGolf GPS Caddie for the following reasons (read as PROs);
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br /- Cost
br /- Self Mapping of 8 addition points per hole
br /- Share files with other iGolf GPS Caddie users
br /- Speed of reading distance (compared to Laser)
br /- Not having to pay annual service fees if you don't want to
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br /Ok - so how does it work? I received my unit after a 6 week backorder. Our home course was not pre mapped. No issue, I would map myself. The manual is a bit weak, . . . however, the unit's menus are very intuitive and not a lot of explanation is really needed. I entered our course's scorecard via the enclosed SW and then downloaded to the handheld. I then pre-selected all the points per hole that I wanted to map (in addition to the standard Front/Center/Back green points) and then entered the names into the unit manually.
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br /Mapping points while on the course takes about 7 seconds for each (once you get there, select point, go to register, . . . and then the registration takes ~5 seconds). I mapped our whole course one early morning in a couple of hours. I averaged about 8 points per hole (including the 3 standard points).
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br /Using the GPS Caddie during rounds, . . . the information is excellent. I mapped many points through the fairway and around the greens (added green left side, right side, bunker carries, etc. to every hole in addition to the standard frt/cent/back). I find the extra green data to be the most useful information. Knowing what it is to carry a bunker with a tight pin behind it is priceless. In the past, one would need to estimate based on the ball's angle to the green, and then the addition/subtraction from either the green front or center green markings on sprinkler heads and assuming you know the green depth. Huge improvement in my approach club selection the first couple of times around using this device.
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br /There are a few things that I wish could be better. Some of these are minor, but you should know what you are getting in advance. Maybe iGolf will work on these for a future revision if they know about them:
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br /- Battery Life is very short. Definitely get good rechargeable batteries and replace often. Carry an extra set with you on the course. When they go, . . . the unit just shuts off. I used standard alkaline first - was able to map and play two 4 hour rounds (about 10 hours). Switched to some old rechargeable - I only get a single 4 hour round with these.
br /- Stability of yardage is weak. The unit is most stable (and accurate) when you first arrive at your ball. However, after standing in one spot for a period of time, the yardage will start to vary after about 5 seconds, . . . and I've seen it vary a lot (15 yards in one case, 10 yards happens often). I've tried both the WAAS (shut off/on) and the stability settings (on/off), but it didn't really improve this. However, as a walker, I now look for my yardage as soon as I get to my ball and trust the yardage I see right away.
br /- I wish the SW would allow you to enter point names to map in advance and then download to the handheld. This would save set up time for a new course.
br /- I also wish the SW would allow you to edit a backed-up course database by displaying all mapped points to allow you to re-arrange them (order) and/or edit them as needed to be downloaded back to the handheld. All this needs to be done via the handheld and is very time consuming while on the course and requires you to get out of `play mode' to do so.
br /- I also wish the handheld would allow you to add a map point easily while in the `play mode'. Currently, you need to exit out, go to the map mode, map the point, then go back to play mode and scroll back to the current hole. Again, time consuming during a round.
br /- Belt clip is useless. A fast way to attach to a golf bag would be much more practical. I used the enclosed lanyard and attach with a small quick clip carabiner. I don't think the lanyard will last that long given the bouncing around this goes through during a round.
br /- A protective full unit leather cover as an accessory would be nice.
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br /All in all, an excellent unit that is much more cost effective than the other GPS units out there, and much faster yardages than a laser. Without question, a great addition to a golfer's gear. So far, I really like this unit, and others at our course have started to order the same unit so the ability to share the files is huge.

I bought the iGolf after watching a friend in my foursome use one. The most remarkable thing about it is how easy it is to operate. Basically you just pick it up and look at the screen and all the information is there, updated to your position on the course. One flick of the control knob and you are set for the next hole. Likewise, measuring the distance you hit is also easy...you tell it start measuring "here" (a flick of a button when you hit) and walk to where your ball got to and flick another button and your hit distance is displayed.
br /Actually though, the most impressive thing of all is the quality and speed of customer service. You phone and immediately talk to the technician. It really is magic, the computer companies could learn a lot from L1.
br /Also has far more courses than the competition. I haven't found a local course that wasn't alreadiy mapped into the software. I love the unit and have no "cons"

This device works great. Load in the software, put in your batteries; turn on the unit; escape out to main menu, go to settings, go to battery type and tell it you're using rechargeable, and you're good to go. The software uses "send" instead of download, to send a course from your computer to the unit. Connect computer to unit, software says connected. Go to "sync handheld" on unit, enter, and unit says "waiting". "Send" on your computer, and unit shows the download, as does computer. About 90 seconds and you have a course. If a course isn't on the igolf website, download the scorecard and use it to map your own. If no scorecard, get one from the course or the internet, and type it in using igolf software at your computer (about 3-5 minutes), then send it to the unit, and map the next time you play that course. Doing that at the course using unit is time consuming. I bought a simple Duracell charger with 4AA NiMH batteries at Staples. As for your golf, well knowing the distance is only part of the puzzle isn't it...

I would have rated the iGolf GPS Caddie 5 stars, except that (1) the manual is weak in a few important areas; (2) the software installation wizard does not "self-start" when you run the CD (as almost all other software CD's do); and (3) the terminology on your PC screen, in the manual, and on the Caddie's display all differ in minor but confusing ways. It took me a fair amount of playing around with various functions in Windows (which I hate), but by using my head plus getting clues from the manual, I was able to get the software installed succcessfully.
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br /Badly written software instructions are a pet peeve of mine, so I downrated the product. Interestingly, the manual's instructions on how to use the unit are clear and accurate. My guess is that techies wrote the parts about installing the software, and golfers wrote the parts about how to use the unit. (I can say this, because I used to be a techie.)
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br /Once you're on the golf course, the unit is a pleasure to own, a 5-star product.
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br /Here are some of the things I like most:
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br /--Its price. It's simply cheaper than competing units offering the same functionality.
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br /--It works. It does exactly what it says it will do: gives you the distance to the front, center, and back of the green you are going for. That's all I need to have confidence in club selection. I particularly like the precision inside 100 yards, where course markers are rare. I use 4 wedges with about 15 yards difference between them, so knowing I'm, say, 80 yards away rather than 90 is important to me. No more mid-swing "is this the right club?" doubts, guaranteed to screw you up.
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br /--No more hunting for sprinkler heads or other course markers. No more pacing forward or backward from such markers. No more guessing at how your distance varies from the nearest sprinkler head because you are 20 yards to the right of it. No more trying to envision concentric circles around the green to adjust for the fact that you're off to the side ("I wonder what that sprinkler head would say if it were on my line instead of over there?")
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br /--It lets you play faster and with more confidence. It's fun helping out your golfing buddies by giving them their distances when they can't find a sprinkler head.
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br /--Operation of the unit is simple and intuitive. The manual does a good job of describing operation. It's a quick, clear read, and everything works as described. You'll only need to read it once for each function, the operation is intuitive once you have that background. The handheld unit itself is very well designed, with just three buttons: one to turn it on and off; one to navigate between menus and advance from one hole to the next; and an "escape" button that takes you to the previous screen...so you can't get trapped inside layers of menus.
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br /--The Web site is clear, simple, and very fairly priced. For $30, you get a one-year membership. A huge advantage over the Sky Caddy subscription model, iGolf allows you to keep the courses in your computer. For the $30, you get 50 download credits (one course per credit). You also get one "mapping" credit, so you can have them map a golf course for you if it doesn't happen to be in their database. The handheld unit itself holds 10 courses, but you can download 50 to your PC and then just transfer them into and out of the handheld as needed. Once you download a course, you own that data. You don't have to maintain a subscription to keep using it. The 50-course limit more than covers my forseeable needs. We have separate winter and summer homes, so I'll have a "southern" set and a "northern" set. Within a year, I'll have downloaded all the courses I need. (So far I've downloaded 4 courses from iGolf.)
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br /--The download includes not only the GPS data, but the course's scorecard. So as you push the button to advance to the next hole, up pops the hole number, yardage, par, and handicap for that hole. When you are downloading a course, the Web site displays the scorecard, so you can check and be sure it matches the actual printed scorecard before you download it. (Then when you are playing, you select on the handheld which tees you are playing from...that's how the unit knows what yardage to display for each hole.)
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br /Bottom line, I think this is a fine product and service at a fair price. I have not yet mapped out my own course, nor marked hazards on particular holes, nor used the other functions that are available. I may do some of this over time. I will probably use it to measure how far I hit my drives and other clubs. But that's all gravy...the main function of the unit is to give you your distance, and it does that well. The display could not be clearer. It's simple black-and-white, with very clear letters and numbers.
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br /A couple of notes:
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br /One reviewer complained that the displayed distance keeps changing or drifting. I've noticed that a couple of times on an occasional hole. If that happens, just flick the button to the previous hole, then flick it back to your hole. The unit will give you a fresh, stable reading.
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br /The manual is weak in its description of how to download a course from your PC to the handheld. Do this: (1) On your PC desktop, click the iGolf "transfer" icon. (2) This brings up a "Caddie Sync Software" box with several tabs. Click the "Send Golf Course" tab. (3) There are then three steps shown in a box that appears on your PC screen. Step 1 is accurate. Step 2 is accurate. Step 3 is misdescribed. Ignore the two things it tells you to select on the handheld...they don't exist. Instead, select "Sync Handheld" from the main menu on the handheld. On your PC, just press the "Send" button. The handheld's display will switch from "Waiting" to "Active" (this is not mentioned in the manual). The download will take place (it takes maybe 30 seconds for one course). When it's done, the top box on your PC will say "TRANSFER SUCCESSFUL" and the handheld will say "Closed." The course data is now in your handheld unit.
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br /If I could, I would give this 4.5 stars. I've downrated it only for the incomplete/incorrect manual instructions. Now that it's up and running, I'm very glad I bought it.

The product itself seems straight forward enough. However, The HUGE write-ups about the customer service need another point of view. I purchased this as a Christmas gift for my brother. He just purchased a membership at a club that was not mapped or available to GPS by I-Golf. After requesting the course on Dec. 22nd, I heard back from the company at the end of Jan. They couldn't do it and asked if I might map it myself- great idea if I were a member and this wasn't a gift. My father-in-law has another brand of GPs- Golf Caddy. I asked the CS person if he had the course mapped, his caddy had it, could I somehow add it to the I-Golf--haven't heard back from them to this day.
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br /I-Golf: "Any chance you'd like to map the Colorado Golf Club by the time the snow melts here in Denver?" Muchas gracias.

I just sent my iGolf Caddie II back in for exchange. Like many of the 1 star reviews, mine kept droping course data. When I contacted iGolf, they said they were aware of this problem, and since my units warranty had just expired, I could get the $30 subscription which extended the warranty to 1 year. I did this and have sent the unit back in. If you read the reviews, at the time I wrote this, the 5 star reviews are from 2006... all the 2 and 1 star review are from latter 2007 and 2008. When the iGolf doesn't drop the courses, it does work as advertised and is fun, as I'm sure any golf gps is. I just wish it was rechargable by simply plugging in.

I've owned an iGolf GPS Caddie for over a year and have been using it flawlessly. Recently I turned on the unit and none of the courses that I had downloaded were available. So I connected the unit to my computer and reloaded the courses again. I played two rounds of golf and then the unit lost the courses again. I contacted customer support and they stated that my internal memory or battery was damaged. iGolf provides no service on their units. Because I was outside of the one year warranty, my only option was to buy another unit. BUYER BEWARE. This product is unsupported and unreliable.

Nice product and very easy to use but don't order if you have a PC running VISTA. You can't set up the required on line connection using VISTA. I Golf tried to help but couldn't. I had to use an older computer to connect and download courses.

The iGolf GPS Caddie II is a handy tool that helps me with my golf round. No longer do I have to guess the distance and which club to use. This is especially true when I'm under 100 yards and have few markers in which to gage the remaining distance. Knowing the distance boosts my confidence and probably shaves a few strokes off my round.
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br /My iGolf unit is accurate to within a yard or two relative to the permanent distance markers layed out on the fairway. And I haven't yet experienced the situation that I've read from other users where they report that the distance reading floats off when they're stationary. It's simple to use with it's joystick-like middle button, which allows me to easily select and toggle through all of the necessary sections and fields on the display.
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br /The only disappointment, and reason I submitted a rating of four stars instead of five, is due to the inaccuracy of some of the courses available for download. Of the three that I've tried so far, it appears that the person responsible for mapping the course mixed up the hole numbers. I'm guessing that this was probably someone who was contracted by iGolf to map the courses using satellite imagery, and he or she wasn't paying enough attention in coinciding the hole number on the score card with the actual hole on the course. For the courses that I play frequently, it's not a big problem as I can either request iGolf to remap them, or I can simply map them myself, which is a easy enough to do. But for the courses that I'll visit for the first time, it's going to be a hit or miss as far as whether the mapping is correct and if I'll be able to enjoy the benefits the iGolf unit will provide.
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Had the unit 10 wks. with no problem. Usually not more than 1 yd. off against other units or known good markings. Then it developed a drift/jump problem. Usually jumps 10 yds. or more (WAAS on). Numerous emails to support. They had me try WAAS and Stabilizer settings on/off, plus several resets. All no help. Their response - "The issue you are describing has never been reported on a Caddie II and we have thousands of devices out in the market." - which is a lie. You can do a google search or check golf forums and find otherwise. I offered to send signed statements by witnesses observing this, or a short video clip showing it, and they rejected those ideas.
br /They finally gave me an RMA and I sent the unit in. I think when they got it, they loaded a test course on it, turned it off and set it on the shelf for a week, and then notified me they couldn't duplicate the failure and were sending it back.
br /What a bunch of b.s. The warranty is useless.
br /What I see: after being in one position and unit has stabilized, the readings (green distances or shot distance) will start jumping all over. MTTF (mean-time-to-failure) = 5 seconds. The range with WAAS on is usually 4 to 27 yds. With WAAS off, you can see it drift rather than the wild jumps. In approx. 25 - 18-hole rounds since the failure started, I have only observed it NOT jump around twice while in one position for about 2 mins.
br /I'm pretty sure that they need a software fix and don't have the expertise to do it. It is similar in scope to a problem Garmin had with an automotive GPS where your position could jump between a frontage road and a highway. They had thousands of unit that were working ok, but some failed. And they finally released a fix for it. Both use SiRF chipsets.
br /Also, in July I reported a course with 17 holes with center of green off by 18 yds.(1 hole off by 16 yds.) Never heard back from them.
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The iGolf II works as advertised, and it's a good deal less expensive than its competitors. That's both initial price and cost to operate, since once I choose my golf courses I download their data to my PC, and don't need to pay an on-going subscription fee in future years. The only minor negative is the battery indicator. I've been using 2000 maH rechargeable batteries (Duracell), set the indicator to monitor rechargeables, but after two outings the device turns itself off repeatedly, though it indicates 60% or so of the charge left. I'm now trying 2700 maH batteries (Sanyo).

After researching various golf GPS units, reading golf forums, and looking at units in stores (I enjoy the hunt), I purchased iGolf's Caddie II.
br /It's user friendly, acquires several sats for accuracy, takes regular or rechargeable batteries, self-mapping is fast and easy, and the price is great.
br /The annual fee is $30, which allows you to download 100 courses onto your PC. So, even if you drop the membership after the first year...the courses are yours.
br /I've used it for several rounds now and am perfectly pleased. The only negative is that it does not automatically switch holes when you step to the next tee, but one click and it's done.

Igolf says that when you get their gps you can add one course which they don't offer, and they will map it for you. My home course was not in their database and I've requested they map it. A couple months now and they haven't done it. When I ask for a date they give me vague answers and I have little confidence that it will ever be done.

This product is more than I had hoped for.
br /It is easy to use and has more memory than competitive products owned by my golfing buddies.

Easy to use.
br /Easy to down load courses to PC and transfer to Caddy 11.
br /One course was not in their data base. I asked to have it added,it was added in less than a week.
br /Copyed the courses to a CD ,also have them on PC hard drive.
br /Easy to read in bright sun light.
br /I've used it about ten times ,at two different courses with rechargeable batteries ,the batteries last about 3 18 hole outings.
br /Great product ,could not be happier.
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Works fairly good. Some courses the yardage seems to be off, some OK.
br /The biggest problem is the it goes through batteries very quickly. I was told to get rechargeable batteries which I did, but I have to turn the unit off between holes to save energy. It makes it hard to use since when you turn it back on you need to scroll back through the holes to get to the one you are playing.

Very poor customer service regarding mapping courses. I've been waiting for 1 month for them to map a course. In another case they told me that a course couild not be mapped. I checked Sky Caddie web site and they have both courses mapped.

I really thought I had gotten over when my wife found the iGolf GPS Caddie for only $170 on ebay. Compared to the others this was a steal. I loaded it, took it to the course (several courses in fact), and it worked great. Eleven months after my purchase, I get on the first tee only to find an error stating that there is no course info. The device had dumped all of the courses I had loaded. Later that night I reloaded the courses and took it out that weekend with no problem. The following weekend it had dumped all the data again.
br /I called iGolf Product Service to find that my 1 year warranty was from DATE OF MANUFACTURE, not date of purchase, and was therefore not covered. I was told my only options were to load the info before each round or purchase a refurbished unit for $150. My response to them was that they left out my third option, which is to go with Sky Caddie!
br /I will be sure to tell EVERYONE I ever play with not to buy an iGolf product.

The weather broke and I was finally able to take my new iGolf II to the course. My partner and I checked its measurements against the course's in-ground markers and found the iGolf to be very accurate. I was surprised, quite frankly, how helpful the iGolf was in strategy and club selection. What I especially liked about the iGolf II was the shot measurement feature which allowed me to see exactly how far (or short!) I was hitting clubs. What we found too often was we "didn't have a club for that distance in our bags." We also had fun by calling out the distance we thought a shot was, as we always do, and then comparing our estimation against the iGolf. We weren't always very accurate! Although my score for this first round using my iGolf II was no better than usual, I am sure that as the golfing season comes, my game can't help but improve. I'd recommend the iGolf II to any golfer. While fun to use, it's more than a toy.

In general, there are things to like about the unit. It does what it advertises. I easily found my courses and got them on the unit quickly. The readout is easy to read, it does wander at times but will stabilize after a couple of seconds. The unit is light and I bought an IGolf case that makes it easier to carry around. I have not tried to add any distinct course features nor have I experienced any that were un-mapped.
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br /On the negative side: the belt clip is fragile. I broke it off after the second round. The IGolf site has replacements in quantities of 1, 3 and 5 which tells me I am not the first person to break them. Second, the unit uses a great deal of power. The first batteries lasted just over two rounds. I used others that lasted less than a round (might have been low quality). The web site claims batteries will last ~2.5 rounds. In the summer I will play 2-4 rounds a week will go through a lot AAs. I guess I need to stock up at Costco and carry them in my car.
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br /Pretty good unit but not without its weaknesses.

this is my 2nd one, i got the caddie 2 for xmas last year. not too bad, the yardages are suspect at times, yet if you stand at the 150 it comes right in.they have improved the download times, they use USB now. watch the memebership, i got burned on 10 courses because i didn't realize they shut you down at the end of a year after the membership date. i renewed for 100 courses and i'll get them ALL this time. when you first join get every course you may want, because you will lose them if you don't use it in a year.i didn't remember that from sign up, but i'm sure it was there. alot cheaper than skycaddie and it does work pretty good.i'd like to see more custom points, some courses hardly have any and i don't have time to put them in while playing.if they whack you once a year, atleast they can do is give you courses with alot of info ie traps, water, etc.

To start this off I have quite a bit of experience using hand held GPS units over more than 10 years such as Garmin(several models), Magellan(several models), Standard Vertex. I have used these units for normal recreation use for survey use in locating oil well sites. I know the normal error in these units as I have used government markers in several countries to confirm my GPS readings from the above units. In short while not an expert on GPS I am familiar with them. I have not used my iGolf Caddie II yet on the course but while at my work site I set up the TEST COURSE. What I was interested in was repeatability of the readings. In other words if a point is say 100 yards from the tee box will it be 100 yards this afternoon or tomorrow. For the test I used known points over several times each day over several days.It appears to me that the iGolf Caddie II unit has a average accuracy of +/- 2 yards. In other words I had a point at 58 meters from the "test tee box" for my first test.Over the test period the point in question was found to be between 56 to 60 yards. This means it could be 2 yards short of the original reading or 2 yards longer than the original reading. This is in the ballpark for the claimed accuracy of most GPS units on the market if WAAS is enabled. Much of my golf is played in Thailand where we use live caddies and I can tell you many have worked the same course for 10 years or more. Really iGolf is not needed in that environment. Now some of my golf is played in the middle east with no caddies. Now we do have sprinkler heads but sometimes its a hunt to find them. I can say that the iGolf would save time and be easier in a no caddies environment. As far as the accuracy I think its reasonable for the mid to high handicap golfer. Lets be honest for the average golfer +/- 4 yards is pretty close for the accuracy we have with our irons. Now for the low handicapper it might not be so great. One feature the unit has is when it stops moving it locks the display on the number when stopped. Well as normal GPS units take a few seconds or even a minute or so to lock on and correct them selves. With the feature I think some accuracy is lost. While I did not use this on a golf course I feel my results are useful in that I spent quite a bit of time with fixed points. My test were in clear open areas in the middle of the desert. Tree's, clouds, rain,etc or anything blocking the view can have a effect on the accuracy of the unit. Is this a useful tool for the average hacker thats to lazy to find a sprinkler head or plays where there are no yardage markers- YES. Besides I love gadgets! I have not tried any of the file downloads from iGolf so I cannot confirm the accuracy of the data.
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Unit is easy to use but is not accurate. iGolf data for courses is as much as 20 yards off. They know it, won't do anyhting about it, and asked me to do the mapping and then send the true data to them. Unit also doesn't give stable reading on the course (wanders 10+ yards). Spend a few more dollars and buy a SkyCaddie.