Garmin Forerunner 910XT Heart Rate Monitor

Priced: $449.95 - $450.00 Rated:   - 4 stars out of 5 by 38 reviews.
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Garmin Forerunner 910XT Heart Rate Monitor -
Your running, swimming, and cycling workouts will never be the same thanks to the advanced features of the Garmin Forerunner 910XT. The 910XT is an upgrade to the popular 310XT and has all the features you need to enhance your workouts.

Items Included:

Basic Features:Training Features:Heart Rate Monitor Features:Wireless Features:


  • Water resistant to 50m (165 ft.), 910XT handles open-water and pool swimming; watch measures swimming distance, identifies strokes and tracks strokes and pool lengths


  • - Premium heart rate monitor (soft strap)
  • Included Heart Rate Monitor strap for accurate performance data, ANT+ signal ensures error and interference free transmission
  • Chest-strap heart rate monitor helps you train in your target zone to optimize performance while you run and bike; monitor can be worn in water but will not transmit data


  • Provides detailed swim metrics and tracks distance, pace, elevation and heart rate
  • - User manuals
  • Compatible with ANT+ sensors, including the optional speed/cadence sensor for cycling
  • On land, the 910XT uses GPS technology to accurately capture your time, distance, speed, pace and more to help you meet your running and biking goals
  • Forerunner 910XT tracks your cycling workouts when paired with a GSC 10 Speed and Cadence Sensor, sold separately
  • NOTE - Must be a Garmin authorized dealer to order these items
  • Track the intensity of your workout with the Training Effect feature; Training Effect is calculated based on user profile, heart rate and difficulty of the activity
  • Make the most of every workout by uploading to Garmin Connect. Here, you can see your activity on a map and view detailed metrics
  • Up to 20 hours of battery life, the 910XT is ideal for athletes training for ultras or iron distance tris
  • Optional foot pod (sold separately) transmits speed/distance data without the use of satellites, so the Forerunner 910XT can also be used indoors
  • Mark locations, save locations or navigate back to the starting point with the basic navigation capabilities
  • - USB ANT Stick
  • The auto multisport feature lets you switch sport modes with just 1 button press, so you don’t lose precious seconds in transition
  • Once the workout is done, data is sent wirelessly to the user's computer for detailed analysis, mapping and data sharing
  • You also can use Connect to plan new routes, create and schedule custom workouts and explore activities from other users. Through the magic of ANT+ wireless technology and the tiny USB stick that comes with your 910XT, your workout data automatically transfers to your computer when in range. Mac and PC compatible
  • Due to federal shipping restrictions regarding products containing lithium batteries, this product cannot be shipped to Canada, Hawaii, Alaska, Catalina Island, Puerto Rico, APO, FPO or international addresses. Thanks for your understanding.
  • Interval training function lets you set up custom exercise sessions and automatically see your pace for each interval
  • Customize the display of training pages for each sport; set up vibration alerts to nudge you when you hit a split time, need to eat or want feedback so you can stay on track
  • Built-in, rechargeable lithium-ion battery provides up to 20 hrs. of battery life for ultra endurance athletes
  • Virtual Partner® allows you to compete against a static pace that you set before heading out for your run
  • Virtual Racer™ feature lets you race against your previous best time or challenge other users' times that have been uploaded to the Garmin Connect™ website
  • Use the Garmin Connect community website to track your time, speed, distance, swimming metrics and calories burned; store and share routes with other athletes on the website
  • Computes your "Swim Golf" (SWOLF) score, which is determined by adding the number of strokes taken per lap to the time it took to swim the lap, to help improve efficiency
  • - Charging clip
  • ANT+ wireless technology allows the Forerunner 910XT to communicate with other ANT+ enabled power meters (not included)
  • High-sensitivity GPS receiver stays locked onto satellites, even near tall buildings and under tree cover; HotFix® satellite prediction locks onto satellites quickly
  • GPS also captures the path you travel while swimming in open water so you can analyze it later to help improve your technique
  • - AC Charger
  • Barometric altimeter provides accurate elevation data, including ascent, descent and grade
  • Configurable data fields let you customize multiple training pages for each sport
  • Designed for open water and pool swimming, Forerunner 910XT is water resistant to 50 m (164 ft.)
  • Features an advanced calorie-consumption formula that calculates calories burned based on changes in the user's heart rate during aerobic activity

You're a swimmer, a cyclist and a runner, and you crave data and details. Get the Garmin Forerunner® 910XT GPS heart rate monitor to track your performance and help you hit a new personal record.

Please Note: This item contains a lithium battery and cannot be shipped to APO, FPO, U.S. Territories, international destinations or Hawaii, and are only available for in-store pickup in Alaska.


Mountains Plus Outdoor Gear
The Forerunner 910XT is a GPS-enabled training device designed for multisport athletes.

Eastern Mountain Sports (EMS)
An advanced GPS-enabled watch for multisport athletes, ultra runners, tri-athletes, and water sport enthusiasts. The 910xt is Garmin's only GPS wrist top to incorporate a barometric altimeter for highly accurate elevation data.
Mountain Gear
The Garmin Forerunner 910XT is a tool you can count on whether you're trail running or cutting fresh tracks in the backcountry.
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Average Price History: Price History
Review RatingNumber of Reviews
Additional Sensors:Optional
Analog or Digital:Digital
Ant+ Enabled:Yes
Average battery life:20 hours
Average heart rate:Yes
Band Closure:Buckle
Band Material:Plastic
Barometric Altimeter:yes
Batteries:Rechargable Li-Ion
Battery Life:Up to 20 hr.
Battery Type:Rechargeable
Bezel Function:Fixed
Bezel Material:Plastic
Countdown timer:Yes
Cycling functions:Optional
Date display:No
Dimensions:2.4 x 2.1 x 0.6 inches
Display Type:Digital
Electronic Compass:No
Exercise log:Yes
Face diameter:1.3 x 0.8 inches
Gps Enabled:Yes
Heart Rate Monitor:Yes
Heart rate sensor type:Chest strap
Heart rate target zone(s):Yes
Includes:Garmin Forerunner 910XT wrist unit, HRM chest strap, USB ANT stick, AC adapter, charging clip, expander wrist strap and owner's manual
Lap Count:1000
Multi Time Zone:yes
Number of Alarms:3
Number of routes:0
Number of waypoints:100
OS compatibility:Windows / Mac
Online Community:Yes
PC Compatible:yes
Recovery heart rate mode:No
Speed And Distance:Yes
Time in target zone:Yes
Tracks calories burned:Yes
User replaceable battery:No
Watch Type:Digital
Watch band material:Elastomer
Water-resistant depth:50 meters
Waterproof Depth:50 m
Weight:2.54 oz.
Wireless communication:Yes
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Garmin Forerunner 910XT Heart Rate Monitor Reviews:

Positive Reviews:

Good Speed info on the go.

The 910xt is a decent improvement over the 310xt, the biggest of which is the swim feature, which I have only used thus far in a pool & decently accurate. It can count how many strokes/lap or distance, pretty cool feature.

It is nearly as bulky as the 310xt, & still like Sputnik on your wrist. But hey, it's a gps watch & I have a man's wrist & it's not an everyday/casual wear kinda wiz-bang. The watch is not particularly heavy & it's not heavier to wear than the 310xt. The wrist band is a bit more comfortable, IMHO.

Garmin put a bit of rubber around the screen to protect the glass, as the 310xt 'glass' screen (it's probably plastic, but I don't know the specifics) did not have this & was vulnerable to chipping/damage.

The black color is a big improvement over the orange, IMHO.

Maybe it's just me, but the way it sits on my wrist, compared to the 310xt, I have to turn my wrist a few more degrees in order to see the screen clear enough.

While running, I'm not sure if the rate of change or refreshing feature of the pace is as fast as the 310xt. The 310xt I had seemed a tic faster at this.

I use it with the foot pod & it give me the info on cadence, which has been good at improving my foot speed & overal speed.

It's worth the purchase if you have the $ and/or are serious about tracking your training, improving your triathlon times or like the data during/from your workouts. I'd definitely spend the money on this before spending it on my bike.

I suppose Garmin will come out w/ a 1010xt, or some super #xt with some improvements over this one, but it will be tough to top, unless the thing is 1/2 the size & weight of this one; which is quite possible the way technology is going.

After over 15yrs of using Polar HR monitors, I switched for a year or so to a Suunto, & then to Garmin. I've always found Garmin to produce a much better product all around.
Dbl J at Eastern Mountain Sports (EMS) on 10/10/2012

Essential equipment

I already own the Garmin 610 and like it a lot, but in getting into triathlon more I needed the waterproof recording capability of the 910 (or so my friends told me!).

I've used the 910 for about 6 months now, in Sprints, Olympics & a Half Ironman. To me it's proving essential - to the point I feel demotivated in working out if I've forgotten it or the battery is flat!

It shares a lot of similarities with the 610 in terms of the data it provides you (heart rate, speed, pace, distance, time, cadence), and the screen layout and fields are totally customizable to what you want to display. Of course the big advantage over the 610 is the swim data. It'll record pool swim data (based on some kind of internal gyroscope I think) and open water swims.

The Garmin Connect software is actually very good for tracking and reviewing the data from the watch. You can also upload to other sites - I parallel upload mine to Strava as some of their Segment Challenges are quite fun.

Performance of the 910 has been very good. I have had it freeze up on me twice, requiring a soft reset, but other than that no problems. Accuracy wise it seems to match the 610 - so they're both correct or both wrong!

I've added the cadence sensor so that I can record my bike cadence. I've also added the quick release kit which, although adding more bulk, makes it easier to take the face off and use it attached to the bike handlebars. Both kits are cheap.

The only downside is that, due to its bulk, you can't really use it as a regular watch without looking like a complete dork!
Portland Jock at REI on 09/09/2013

A must for any triathlete!

I bought this watch because I needed to change from the 405, which though it's a good watch doesn't have as many features and the touch screen is actually a negative when you're sweating.

The 910 is awesome and does pretty much anything a beginner triathlete needs.

Pool swim - The watch actually provides much more data than one probably uses, but I routinely would lose track of my laps prior to using the watch. With it on, I just hit the button when I start and it alerts me when I hit my marks.

Running - It's much better data with the GPS on, but the ability to check your pace is great. Also, you can set it to vibrate alerts for distance and time so that even if you're doing a tempo run or intervals, you can still listen to music without worrying about missing an alert to change pace.

Biking - I don't really use the bike functions other than time because I have a computer on my bike and I didn't buy the accessory to attach to the bike.

In open water, the GPS doesn't work great because it loses track when your hand is under water, but it still keeps track of your distance and time, which is the only thing that matters for me.

Overall, a great watch if you're a triathlete, beginner or pro. If you're only running or biking, then it's probably way more than you need and you can get the same data from much cheaper watches. It's handy if you're in the pool a lot for laps and stroke rate.
RedPhoenix at REI on 04/04/2013

Great Multi-Sport Watch

I received my 910XT and was able to do a swim and and a bike so far. I've upgraded from my previous 405.

I love this watch and it performs better than my previous watch (and I can swim with it). I like having buttons even after using my 405 for 3 years. Firmware upgrades in the future will likely solve some of the new watch glitches. One feature that would be nice is if it could display the time when it's not being used as a sport watch (other Garmins can, so why not). For triathletes and those who like to exercise across multiple sports, this watch is great.

I swam two intervals (1/2 mile each) alternating freestyle and breaststroke. It always recognized the freestyle lengths, but was 50/50 for my breaststroke. Half of them showed up as backstroke. This is not a huge deal at all for me. Over 64 lengths it only added one extra length and I think I caused it by adjusting my goggles during that length. The only thing to add to the swim feature would be the ability to create workouts like you can in the run and bike modes.

It's nice to have 4 data displays on one screen so it doesn't have to cycle through screens. I haven't run with it yet, but it paired easily with my foot pod and HRM.

Worked great on the ride today. It was nice to have such a huge display you can glance at while bombing down technical trails.

I would have purchased this from REI, but they're on backorder.
Shrekviper at REI on 02/02/2012

Nearly Perfect Multisport Training Tool

I have been using the Garmin 910 for about 2 months now and am absolutely loving it. My workouts each week consist of a lot of running, cycling, and swimming. Before I bought the 910, I used a combination of training tools: my Forerunner 405 for running; a combination of a bike computer, heart rate monitor, and MapMyRide data for cycling; and a lap counter with stopwatch for swimming. Life has become so much simpler now that I can use the 910 to replace all of the above.

The 910 is a reasonable size so that you don't feel like you're lugging a huge bulky piece of equipment around on your wrist like some of Garmin's previous models. Having used a couple of other GPS-enabled watches, I have to say that Garmin has really made the 910 fairly easy to use. The satellites are located quickly and it is pretty simple to set the watch to display your preferred data for each sport.

I also have always enjoyed the Garmin Connect site, where you can easily view your workout data, track your progress, and see exhaustive details from each workout.

The only negative that I feel the need to point out is that I have come to doubt the accuracy of the altimeter on the 910. After comparing my data from several cycling workouts to the altitude data obtained from MapMyRide and from a friend's data from the older Garmin model, the 910 has significantly exaggerated the amount of climbing on my rides, usually by several thousand feet.
Triathlete Jen at REI on 05/05/2012

really awesome tool!!

I bought this when my 305 finally broke. The 910XT is an ideal replacement - much longer battery life, more versatile functions (Multisport option, cross training option), same easy to understand user interface. Swim function works beautifully. Heartrate monitor pairs only with this device which is great, because we have a house full of Garmin tools with HR Monitors - I used to get cross talk from other devices, but not any more.

I like the new charging system much better than the cradle that was with the 305. The 305 used to lose its mind or fall off the cradle easily, but the 910XT has a big clip that keeps it from slipping away. The 910XT also has a charge indicator so you know when you need to re-charge.

The 910XT has a smaller profile than the 305, seems to pick up satellites faster. The watch band pinches my wrist occasionally, but once it's snug, it's on. It does not slip when I swim. I worry that the tongue catch on the strap may be flimsy and break some day, but I trust I'll be able to find a replacement if it does happen.

I use the Garmin software on my computer to import data from the 910XT. the ANT stick is great - but so far can't find a way to upload the data from my swims. This is the only issue in an otherwise excellent device. My favourite Garmin so far!
dreadpirate rackham at REI on 05/05/2012

Works great

I finally took the plunge and purchased the Garmin 910xt and don't regret it yet. Personally, the 910xt replaced 2 fitness Garmin units (Forerunner 405 & Edge 305). First time out of the box for use was in an Olympic distance triathlon and it performed quite well. All the metrics were displayed clearly and were easy to access. The customization of the display and alerts is a helpful feature.

Swimming uses - So far, the swim features look to be pretty useful as in a pool it will count the number of strokes per length, stroke type, and laps (I lose count on my own). Useful for those that are a bit of a nerd and like to see that kind of data

Cycle uses - The usual cycle metrics + having power capabilities is nice. I'm looking forward to using the ANT+ power features to take my cycle leg to a higher level.

Run uses - It's nice to see that there's a run/walk interval timer available on this as for marathon training this is the strategy I use.

Misc - The HR strap is more comfy than the previous generation. Battery life is pretty nice now. I've tracked about 20+ activities and only need to charge the unit 2x. Granted I left it on for several hours after my workout so if you're diligent on power button its good.
Bryant8 at REI on 07/07/2012


Just purchased the Garmin 910xt with heart monitor setup. Probably overkill for me but it allows me a variety of options for activities I enjoy such as cycling, walking, jogging and swimming.

Fairly easy to use out of the box. Basic functions are intuitive. I am not into the heavy comparisons and workout setups etc....YET.

12 mile bike ride today and dead on accurate comparing it to my regular bike computer. Only cared about distance as I already have a computer on my bike for speed and cadence as well as distance. I am very confident this will have more than enough functions for me and the accuracy is very very good as compared to other gps units I have tried. GPS in the unit itself and not a seperate piece strapped to your arm. Also like to know I have the ability to use for swimming but honestly I doubt my unit will ever see water. :)

Garmin has an excellent customer support team and continues to assist me should questions come up about my 3 year old edge 705.

In short I love this sports watch and know I can trust Garmin Support to back their products 100 percent.
ridingmytrek at REI on 03/03/2012

Really nice improvements

Mainly a runner, then mountain biking. Rarely swim, though I plan to more than I do now. My 305 died after 7 years, and at first tried the 610, but it didn't work as the smaller screen kept me from my usual four-data-field view (it's do-able, but really small), but the tap-screenchange helped fix that. However, the touch-screen for menu scrolling was really hinky and personally didn't work well at all for me. I exchanged it for the 910XT which was likely overkill for a non-tri athlete, but I LOVE that is has the similar, but slimmer, form factor of a 305, yet all the awesome improvements (vibrate alerts at the mile splits is really cool). I also like that it's capable of more swimming/cycling accuracy as I expand into those sports, it's ready for it. After struggling w/ the 610, this felt like "home". The battery life is really fantastic as well. My ONLY complaint is that the heart-rate strap, while very comfortable, requires you putting it on over your head or stepping into it (it doesn't "break" like the previous did) and the strap twists/tangles very easy. But once it's on, it's un-noticeable.
texrun40 at REI on 06/06/2013

Great watch for Triathletes and swimmers

I upgraded from the Garmin 310 XT. Although I was expecting an upgrade to the software... even for running/cycling but its the same configuration and software look and feel on the 310. Although it is not a bad configuration, I was hoping for an upgrade at some level. The GPS signal is much easier to view.

However, the swimming mode is great. It calculates distance, pace per 100 yards, average strokes per lap, total strokes, intervals Average SWOLF and Average Efficiency... on top of the typical distance, calories and time. The laps are calculated automatically.

The footprint isnt much smaller than the 310xt. about a 3rd shorter in height, but the footprint is slightly larger and spread out. I do like that its black instead of bright orange- a little less obvious.

Overall, to me its worth moving up to the 910 -there is an open water setting- which I have yet to use. Last year I ran 2 ironmans- and would have loved this watch for training and racing.
Iron Snail at REI on 03/03/2012

Negative Reviews:

Very disappointed with this watch

After reading all the worrisome posts on Garmin, about the 910 shutting off intermittently, or the pace function not working properly, I decided to take the chance and go with all the "believers" of this product and bought one this past weekend. Tried it out today, and low and behold, the HR strap didn't work, AND the thing shut off on me (even with the new firmware). I am very disappointed with this product, especially for the price. I've had a 5 year old Garmin 301 that works perfectly, that I'm going back to, along with my Polar RCX5 watch, cause I can always count on them, EVERY TIME.For the price, and this being the top of the line for the Garmin "sports" line, I would expect it to work right out of the box, as advertised. It didn't, so I'm going to return it to REI. If you really want this watch, I'd say wait a little bit, and peruse the forums to see if all the issues have been hashed out, which may take a while. I really like Garmin and their products, but sadly, this iteration is one that I'm severely disappointed with, and probably won't go back to.
mipal7 at REI on 03/03/2012

Potential is there...

The idea behind this version of Garmin is incredible, however, apparently the unit the I received is defective. The battery never shows as charged, it will frequently just turn off in the middle of a workout, and it is near impossible to turn on without button mashing. When I can get it functioning, I LOVE it. I am about to swap it out, thanks to the great customer service at REI, and I hope I have better luck with my new unit. From what I have read, I received a defective device. Will be happy to change my review if my new experience yields a different result!
matrimom at REI on 05/05/2012


I've been through three straps and two watches and not once has the heart rate worked. I am very very disappointed and so sad to have paid so much. The only saving grace is the REI return policy.
missb at REI on 03/03/2012

Neutral Reviews:

OK but buggy and not very reliable

I've had this for more than a month now. Previously I used a Polar RS800SD.

- Easy to transfer data to computer - its wireless and takes no effort after the initial set-up.
- Its easy to use in terms of setting up data fields, changing various settings, and chaning between sports.
- Batttery life is great - just did the STP in one day and still had plenty battry life left.
- Because it uses ANT+, which has become a common standard, it is much more versatile than Polar.

- Altitude sensor is useless - my STP ride showed more than 8000 feet of climbing, even though it should be just over 4000. Interestingly even after using the altitude correction in Garmin Connect, it still showed virtually the same value - must be a bug and hopefully can be fixed, otherwise I'll want an exchange.
- Sometimes on bike rides the unit will stop and auto-resume instaneously and repeatedly while I'm moving. The auto stop feature is only supposed to kick in when I stop, so something is not right but not clear what.
- OW swim accuracy, or rather the lack of it, is annoying, although its better than nothing.
- Running speed sucks if you rely on GPS alone, but fixable with the shoe speed sensor.
- Chest strap has excellent form factor but prone to wildly inaccurate readings in the first several minutes - I rinse it under running water to really soak it before wearing to try to avoid the issue. In contrast, my Polar strap is fuss free and also very comfortable.
- The training effect feature is garbage. The value will get to the maximum of 5 very easily - supposed to get more accurate with more usage but it sure is a long wait!

Bottom line, I quite like it for tracking my workouts because of the simplicity. But for the money, I expected much better. If only Polar would put a GPS sensor in their watch and switch to using ANT+, I'd switch back in a heart beat.
Gene Z at REI on 07/07/2012

Great unless you upgrade to firmware 2.5

Got this for tri training and loved it. The swimming mode is a little tweaky, but still worth using. I figure they'll improve this over time. It was great for running & biking until I did the firmware upgrade from 2.4 to 2.5.

After the upgrade to firmware 2.5 the watch has these problems:
1) randomly turns off
2) battery life is off (barely lasting through a 9 mile run on some days, fine on other days)
3) weird speed spikes in the data
4) elevation data is completely wrong. (shows that I finished below sea level when my finish is at 300 feet. Also showed me an eleveation gain of 4000 feet on my last training run, when it should have read 850 feet)

Before the upgraded firmware I didn't have any of the issues and loved the watch. Now my data is all messed up for marathon training & I'm not sure if it's worth returning or exchanging it.

Garmin support says they can't downgrade the firmware back to version 2.4, so if you get the watch don't upgrade the firmware.
ClickyPaws at REI on 08/08/2012