Home > Consumer Reviews > Garmin Forerunner 405 Wireless GPS-Enabled Sports Watch with Heart Rate Monitor

As a long-time user and fan of the Garmin 305, the Garmin 405 was a product I was looking forward to for months as I was excited to see the next generation of the 305 I have enjoyed so much.

I could not be more disappointed with the result.

The Garmin 405 is a classic example of a good product concept and clever design gone horribly wrong as the Garmin team focused on form (looks) clearly beat out the folks worried about function. The watch looks fine (great for a HRM/GPS watch, so so for an everyday watch) but in terms of actual purpose-built functionality, it is terrible. There are multiple reasons for this which I will outline below.

(1) Useless when wet (yes, that includes sweat). The fact that you cannot toggle between screens or do anything with the bezel while the device is wet should have caused the designers to toss out this novel touch sensitive concept and stick with what works. Instead, they decided to go with a neat design concept that works great when the salesperson is showing it to you at the store, but will provide endless hours of frustration when you are out running and just want to see your heart rate. This is my first bullet point because it is the best example of the type of design failures that make this a terrible device.

(2) Use of built in functions/screens - The makers carried over the capabilites of the Garmin 305 and added a virtual training partner functionality, but the display can only show three fields at once and the fields themselves are too small for good viewing while in motion (ie running). Cycling between the displays is easy to do while sitting on a couch, even fun when you run your finger along the bezel, but when you are out running you quickly realize that it is very difficult to accomplish anything with the device. With the 305, if you wanted to change fields on the fly, you could manage to do it while keeping a reasonable pace. With the 405, you need to press buttons and run your finger along the bezel to switch fields - again, great on a couch, nearly impossible on a run.

(3) GPS Accuracy. I have traded messages with people who disagree, and I will say that I sometimes have great accuracy, but have also had multiple experiences where the accuracy of this device is off by so much as to make the pace and distance benefits of a GPS useless. The best example is running a measured mile with typical neighborhood street tree coverage and having the device show I went a total of 0.70 miles (the 305 on the same stretch showed 1.01). I have had this happen multiple times in various locations and therefore have stopped using the watch in races when I want to know my true pace and distance (I am using the 305 again).

(4) Silly things that might (or might not) drive you crazy - There are two buttons on the Garmin 405 - both on the right side of the face as you look at it. These buttons perform some useful functions, including locking the bezel so that you can wear the device in a non-GPS mode and avoid running down the battery needlessly while still using the device as a watch. The problem is that if, like me, you actually own a daily wear watch and when you travel you prefer to put the 405 in your bag or suitcase, having the two buttons on the same side means that if they press against anything they will unlock the bezel and the GPS will start running (or try to). The result will be a dead battery when you pull it out of your bag. It may seem minor, but pulling the 405 out of your bag after you arrive and want to go for a run, only to see it is dead, again and again, is annoying. The positive offset is that the watch actually charges at a pretty decent speed. Oh yes, and when the battery does, in fact, die, you will need to go through all of the intro screens again to get it going which will sometimes freeze on you (check message boards for solution to this as some people have posted them).

Overall, this is a terrible product and if you really want to get a GPS enabled running device, I would highly recommend you buy the Garmin 305. It is much cheaper and while it does not look as good, the size will not bother you after a couple of wears and it will work flawlessy for you. I suspect they will eventually correct the failings of the Garmin 405 but until they do it is not a good use of your money.

I've been training with the Garmin 405 for a year now and love it. Given the mixed reviews here, I was apprehensive about getting it, but it really is a great training device.

Out of the box, it's quite good. After configuring it and just getting used to the way it works, it's much better. For example, mine is set to auto lap every kilometer and I mostly use a custom view with lap pace, heart rate and total distance. Interval Workouts are also very handy and easy to set up. The possibilities are endless.

The bezel takes some getting used to, but once you have configured the views, you simply leave it alone while running or tap with the middle of your finger (works better than the fingertip for whatever reason) to change views. You can lock the view by pushing both side buttons at the same time. This keeps it from switching views and beeping madly when wet or from bumping your shirt sleeve.

As I've progressed as a runner - first marathon in 2008, 3:52 at 41 years old - I've tried a variety of watches. First, a Timex Ironman, which I loved, but no Heart Monitor. Then a Timex Heart Monitor which I used with the Ironman (for the 100 lap memory). The Timex watches were stolen so next, a Nike Heart Monitor with the Nike+ Sports Band and Foot Pod, which looks cool but is not very accurate, even calibrated. Changes in speed, hills, etc. will affect the accuracy of any foot pod system. Once calibrated, it tended to be about 3-5% off.

Now, the Garmin 405. Likes:

1. Normal size - Unlike the 305, which I would not wear, the 405 is a regular watch. I wear it all the time.

2. Everything in one device - HR, pace, distance, elevation, laps.

3. Pace - I thought the whole GPS thing might be a bit too high-tech for a guy who loves the simplicity of running, but it is very, very nice to know your pace as you run. I use Hal Higdon's training plans, which call for all kinds of runs, with warm-ups, intervals, tempo intervals, pace segments, etc. The pace feature makes doing these workouts possible without having a coach at your side.

4. GPS frees you from mapping out your route. You just run until it shows your distance is done. The Garmin Connect site then shows your map. This doesn't sound so amazing, but it is very liberating. You just run wherever you want, explore your neighborhood, whatever. It transforms city running.

5. Auto laps. Great feature. Records all your details (time, HR, pace) for each lap automatically. You can review on the watch or on Garmin Connect.

6. The Garmin Connect website is very good and continually improving, with new features every couple of months.

7. The data seems pretty accurate, based on a track workout. In a recent 10K race, it recorded 10.2K, but some of that variation is certainly due to my weaving among the crowd. All GPS devices have a margin of error.

Dislikes:

1. Battery life - with GPS enabled, it needs a charge every couple of days to avoid the dreaded "low battery" warning in the middle of a workout.

2. The USB stick for wireless transfer. It works, but Nike does it better. The Nike+ pop-out USB stick is a much simpler way to transfer data to the computer and a much better way to keep from losing the USB part.

3. It can take a couple of minutes to find satellites and loses accuracy in bad weather. This is probably true of any GPS device.

4. You need the foot pod to record distance indoors. One more piece of gear (and not cheap). I didn't buy it. It would be great to be able to manually add the distance to a workout on Garmin Connect.

All in all, the Garmin 405 is an incredible training device. It is the best choice in the market. Nothing comes close to it. 5 stars.

I hope you find this helpful.

I've been using the watch for about a month now, almost daily. The watch itself is great. Great functionality, great specs, very usefull. BUT - and there's always a but - the watch basically freezes up when it becomes wet. I sweat more than average and the iPod-like bezel does not respond when wet. I read a bit about this and made the purchase anyway. Big mistake. I am now returning because after about six miles, it is useless. A few other comments:
- Strap is comfortable but if you have a larger chest (I'm 44"), and you are forced to wear it tight, plan on buying lots of the $10 straps. Mine is already showing signs of streatching. I had a polar before with a nylon strap and this wasn't an issue
- There is some negative play on getting the watch to sync with PC. I'm a fairly technically savy guy and it took more than one try. The instructions online aren't the best.

Takeway, if you are a skinny runner who doesn't sweat, this watch is a five. Otherwise, you may want to avoid.

I had been looking to buy the Forerunner 405 for some time, but was reluctant because of all the bad reviews on here. I had the Nike+, which was terribly inaccurate and quit working after a couple of month. I went ahead and purchased the watch, ignoring the bad reviews.

First, I read reviews that said the bezel is hard to use. No, it's not. You have to sit there and play with it to learn how to use it. When it goes into sleep mode, it's not responsive, so you have to hit one of the side buttons a couple times to wake it up. Not a big deal. Personally, I sweat a lot, and have not had any problems with the bezel not responding when I run. It has never locked up on me either. You can adjust the sensitivity of the bezel. It's preprogrammed on medium and I haven't had any problems with this setting. People complain that the bezel is easy to hit accidentally, thus leaving it on and draining the battery, or whatever they complain about. You can lock the bezel so that this doesn't happen. If you lock the bezel and this still happens, then don't throw it in a gym bag or somewhere it can get knocked around. Personally, I wouldn't be throwing my $300 GPS-enabled sports watch around anyways.

For the people who say that it's not accurate, I have had no issues with it's accuracy. Actually, I think it's very accurate. I was worried about it picking up satellites because when I had satellite radio in my car, it would frequently lose signal on a road that I run on. The Garmin has never lost signal during my run, and I live in WV and my route is right near mountains and trees. For those who complain about the way it displays information during your run, you can program it to show you what you want, and you can turn off autoscroll so that it stays on the one display. If you want to see the next page, just tap the bezel. It's really easy. I found that having 3 items on the page was too crammed and small to read, so I changed it to only show 2 items. I have it set to show my pace and distance.

For those people who complained about how long it takes to pick up a satellite signal, yes it may take a couple of minutes. Do some light stretching while it acquires the signal. For those complaining about the battery life, I ran 14 miles with it over the course of a week and it got down to 38%, so I threw it back on the charge just in case. It's simple to check the battery life, so check it now and then, and if it gets low, charge it. Just like you charge your cell phone every night or every other night. Just be sure to turn the GPS off after every use to save the battery.

Somebody complained that it doesn't read a steady speed/pace the whole time. No, it's not going to read that you are running a 10:30 pace exactly the whole 5 miles you run. Naturally, you are going to speed up or slow down and not realize it, and lets face it, it's a tiny electronic GPS device and may not be 100% in tune with every step. Mine will generally bounce around 15-20 seconds above or below my goal pace. What matters to me is that I know within 15-20 seconds what my pace is exactly when I'm running, and at the end it gives me very accurate pace averages for each mile. I have had no issues with transferring my data to the computer. The ANT stick quickly links to the watch, and it may take a minute or so to download. The software does what you need it to do. If you need something fancier, there's more software out there. Lastly, this watch is large. For the men that may not be a problem. I am female and I found this watch to be rather large, and I am not a tiny person. This isn't a watch that a female can just wear fashionably. If you think this is a small sports watch, it's not. But, the strap has plenty of notches to adjust to just about any size wrist.

I'm sorry to complain about other people's experiences with the watch, but I just don't understand how they are having these issues and I am not. The issues that some complain about seem to be easily resolved by simply becoming more familiar with the watch or thinking ahead a little. This isn't a watch you can just throw on and run with right out of the box and it be perfect. It is highly customizable, and everybody is different. Once you customize it how you like it, it is a very accurate, useful tool to aid in your training. I am saddened that the negative reviews almost prevented me from purchasing this item, when it has been the best purchase I have made in a long time. I love this watch and highly recommend it. If you are not good with electronics, then maybe this watch isn't for you.

The Garmin 405 is not my first HRM watch, but it is my first that has integrated GPS functionality. This watch is slightly complex as mentioned in an earlier review, but not too complex to get used to, and once you work out your process for using the watch it is not complex at all. What makes it initially seem complex is that it has so much functionality you can use it can be overwhelming. To turn on the light simply requires you to touch the bezel with 2 fingers rather than one, same motion for turning it off. They are attempting to match the user friendliness of the iTouch/iPhone with the touch bezel interface.

I have probably the most complex setup for this watch that is possible. I have the HRM, footpod (so I can use it on a treadmill indoors) and the GSC-10 for my bike (a carryover from when I had the Forerunner 50 which does not have GPS). So far pairing and using the various ANT devices including the USB connection to the PC for data downloading has worked very well with no problems.

This watch does not currently work well with Macs. I have many computers at home, including 3 Macs, my main computer being a Al iMac. I just use Parallels and XP for data transfer and analysis for the 405 currently. My hope is that Garmin meets their promise of Mac compatibility in 2008, but the workaround with Parallels works OK for now.

If you are a gadget person and run/bike and love to review and collect data this is the product for you. I definitely fit that segment and love the 405. Only Mac compatibility and the somewhat complex menu system keep this from being rated 5 stars by me. If you prefer simplicity of operation and do not like gadgets much, my recommendation would be to choose a less complex watch with HRM.