10 reviews for Garmin D2™ Mach 1, Touchscreen Aviator Smartwatch with GPS Moving Map, Aviation Weather, Health and Wellness Features and More, Vented Titanium Bracelet

1. 

   G – August 11, 2025

   Almost washes dishes
   Had this for a few weeks…. Still learning all it does. Very cool. Interesting for piloting and navigation…. All your instruments on your watch! …. direct to maps, Map feature, weather, sports performance, golf course tracking. Very accurate. Expensive, but an amazing device with an 11 day battery.

2. 

   Kim – August 11, 2025

   all around great watch
   husband loves all the different options of things to have on the watch. very interactive and tracks all health options needed. battery life is solid on this watch

3. 

   Mike Hayward – August 11, 2025

   Great Aviation Weather Features, Titanium Band Sucks, Activity Tracking So So
   I have been using a Garmin Fenix 6 for nearly a year and finally broke down and got this watch as I’m an avid pilot.I do really like the touch screen for scrolling through endless menus, the circular widget or ‘keyboard’ inputs, and moving the map around. It is fiddly with moving the map since it isn’t always enabled and selecting things is super inaccurate, but still an improvement over endless clicking and the buttons also work.The brilliant LED screen is much easier to see and use in less than direct sunlight so makes this watch great for flying. It is not so bright that the flashlight mode is particularly useful, but in a jam you could use it to get a key in a hole. Certainly this is the right screen for a flying watch if you fly in low light. The higher resolution than the LCD screen of the Fenix 6 is much appreciated as well for making out weather maps and tiny little graphs. On the other hand, the screen fails to illuminate like half of the time when I flip my wrist up to look at the screen during a hands free hike or bike session so not great for activities. That and the screen is sometimes actually harder to see in direct light than the Fenix 6. Even more annoying is that when the screen is off the buttons are locked out so I can’t just reach down and start/stop an activity or switch pages when biking with one free hand, then look at the screen with the other. As a daylight activity tracker I now often leave it at home and use the always on Fenix LCD or just wear both watches, one on each arm. Crazy right?The GPS is roughly the same poor accuracy as the Fenix 6, or worse. I recently benchmarked it against my Fenix 6 and my girlfriends Fenix 6 on a hike up a 14er we did and it literally showed the route being half a mile longer than our Fenix 6 watches. It works like plus or minus as much as 100 feet and I’m glad for that, but don’t expect amazing accuracy.When constantly checking the weather in marginal conditions for planning purposes, I found the meteograms to be awesome. Having the current conditions on the watch face is useful. Having alarms set when weather gets updated is useful if you are monitoring it closely and can be turned off the rest of the time.Most of the aviation information like altitude and such is of limited use when sitting in an aircraft, but I do enjoy knowing the UTC and local time at a glance in flying mode. The watch pairs with my phone ok, but I can’t also pair it with my tablet where I do most of my flight planning (the phone is more of a backup, light research tool). You’ll want it paired to your phone anyway for activity planning. It wouldn’t transfer my entire flight plan, just direct to a waypoint. Then Garmin Connect quit connecting to it period, despite activity tracking working fine. Tracking my flight with the watch as an activity is also silly as Garmin Pilot already does this and does it better and I don’t need my flying stats showing up in my health tracker. This watch gets a complete FAIL for Garmin Connext integration.I love the lighter weight of the titanium vs steel of my Fenix, but honestly it does scratch easier so I try not to wear it when exercising or working on engines and such. I use it as more of a flying, white collar watch, if you will.The titanium wrist band looks ok, but it doesn’t work for me right out of the box. The links are large and there is no fine adjustment available at the clasp so odds are, it won’t fit you well either. Consider that your arm will shrink and swell with activities, hydration, etc. and even if it fits now it probably won’t in eight hours. The silicone band looks great in my opinion, and you are probably wasting your money buying the heavier, less adjustable, less comfortable titanium band unless you are willing to have a jeweler custom modify the clasp for additional big bucks for dressing it ‘up’. If you DO want to dress up the watch, you may be better off with this customized titanium band than the Garmin leather band which also looks much less adjustable than the silicone band and really can’t be modified to fit if you aren’t lucky with your wrist size.If you are an avid pilot and find yourself watching the weather all the time, this can be a useful tool in your arsenal. Certainly an expensive way to go, but it saves some time when on the grid. None of the other features are complete game changers and some are literally a step back compared to an LCD Fenix as far as activity tracking so if you are an athlete I recommend the Fenix.

4. 

   MS – August 11, 2025

   Love it
   Excellent seller, got what they said it would, almost new and works perfectThank you

5. 

   chris willis – August 11, 2025

   Doesn’t work out of the box.
   Save yourself the grief. You spend north of a grand for a watch that doesn’t work out of the box. If you doubt me, do a search on how to make Garmin watch buttons work. You’ll see all sorts of “soak it in water” replies…. The watch looks like it would be a great watch, but not when the buttons won’t depress. I’ve been slowly moving away from Garmin products because of similar problems. In my experience they are becoming junk and quickly.

6. 

   Hugh Jorgan – August 11, 2025

   Great for pilots
   I have been a loyal iWatch person since 2015 but this watch makes more sense for me. I am an airline captain for a major airline and I find this watch is much more useful for me than the iWatch. The fitness tracking functions are better than iWatch especially for strength training. Also the compass is more accurate than iWatch.

7. 

   Good watch but the battery doesn’t last so long . I have to charge the watch every day – August 11, 2025

   Good watch , but the battery could be better
   Good watch , but it doesn’t last so long, I have to charge it every 2 days

8. 

   Gary B – August 11, 2025

   Great Watch with nice features
   I recently purchased the Garmin D2 Mach 1 aviator smartwatch because I wanted a device optimized for aviation needs. As an amateur pilot, I was looking for a smartwatch with GPS, aviation maps, and weather data.The touchscreen display on the D2 Mach 1 is crisp, clear, and easy to use even in the cockpit. The built-in GPS provides accurate location tracking in the air or on the ground. The preloaded aviation and airport maps also come in handy to view airspace details.One of the best features is the ability to overlay weather data like radar, winds, and more right onto the map screen. This gives pilots quick access to critical weather information in flight. The pulse ox sensor and fitness tracking features also work great when not flying.However, I was disappointed to find that the D2 Mach 1 lacks some key capabilities compared to Garmin’s other aviation watches. It does not have an HSI compass for navigation, built-in communications, or support for Garmin’s aviation apps.I likely would have preferred to purchase the more expensive D2 Mach 1 Pro version for the additional features, but wish it was available in an all-titanium case option for enhanced durability and style.In summary, the D2 Mach 1 provides a very good in-flight GPS, mapping, and weather display. But it falls a bit short as a hardcore aviation tool for pilots. I would recommend it for VFR pilots who want a stylish aviation smartwatch, but not those looking for an all-in-one cockpit solution.

9. 

   Mia – August 11, 2025

   El reloj está muy lindo se puede ajustar llegó un día antes y parece que todo bien pero apenas lo voy a probar

10. 

    Desert515 – August 11, 2025

    Love this watch had some issues in the beginning when I first set it up said 14 days of battery being connected to BT and my phone not using GPS but I was lucky to get a day after a month of this I contacted Garmin support I went through a bunch of processes and was getting decent battery life out of it I’m actually getting the 14 days now with a lot of the functions turned off I love it but I don’t see the value of $1700