Aviation Watches - Recent Threads

Watch Face

LDSPilot — Thu, 18 Dec 2025 14:13:24 GMT

Please bring back, or make a variant of the D2 Mach 1 watch face for D2 Mach 2! Then inability to have the aviation weather and additional data fields on the face of the watch is really frustrating! 51mm of beautiful space and no way to add some extra intel around the ring/bezel is disappointing.

RE: Watch Face

Martinxxxx — Wed, 22 Apr 2026 22:24:27 GMT

fully agree, nevertheless the D2 Mach 2 Pro has an improved watch face. Unfortunately it can't be used on the D2 Mach 2 - 51 mm

D2 Mach 2 - update aviation database doesn't work

9015539 — Fri, 10 Apr 2026 08:56:20 GMT

hello all,

first of all - please excuse me for my poor English (I'm German and 64 years old ;-) )...

I got my D2 Mach 2 at April 1st, the version of the aviation database is cycle 2602. WLAN is on, automatc update is on. As far as I know, the current version of the aviation database is cycle 2604 (since April 9th). When searching for database updates manually, the message appears, that no updates are available. Did anyone here get a newer version of the database? If yes, how to do the update?

Looking foreward for your answers.

Flying activity data metric units & calorie caount

Merih Arikkök — Sun, 22 Sep 2024 15:11:07 GMT

It's been bothering me for a while. Why does Garmin show Flying activity data in metric units? Like kilometers? Altitude is shown in meters etc. Also, it treats the activity like a sports activity. What does the sweat loss and calories spent depend on? Is there any truth to it? Also I cannot see the average SPO2 and so on in the activity details after i fly.

Its surprising that nobody paid attention to aviation details. I guess you get the same data when you own a super expensive MARQ

RE: Flying activity data metric units & calorie caount

jmescalante — Sat, 04 Apr 2026 04:39:38 GMT

I would like to suggest an improvement to the Fly activity history on all the Aviation models and in Garmin Connect.

When reviewing historical flights, heart rate and heart rate zone data are not very useful, because during a flight the pilot is normally seated in the cockpit and the activity is not being evaluated as physical exercise.

Instead, it would be much more useful if the Fly activity history prioritized aviation-related data such as:

Vertical speed
Altitude relative to terrain / height above ground
Heading
Bearing

These metrics would provide much better post-flight analysis and would be more relevant for pilots than fitness-oriented metrics.

I suggest applying this change both on the watch and in the Garmin Connect app, so that Fly activity history reflects operational aviation data rather than standard fitness data.

Thank you for considering this improvement.

Garmin Connecct Flying App

jmescalante — Sat, 04 Apr 2026 04:35:27 GMT

Dear Garmin Aviation and Garmin Connect Team, I would like to submit a feature request regarding the Fly activity on the D2 Mach 1 and the way historical flight data is presented both on the watch and in the Garmin Connect app.

When I review historical flights, I currently see health-oriented metrics such as heart rate and heart rate zones. In the context of most flights, this information has very limited operational value, because the pilot is typically seated in the cockpit and the activity is not being evaluated as a fitness effort.

For flight review purposes, I believe it would be far more useful if the historical Fly activity emphasized aviation-relevant parameters instead. In particular, I would suggest prioritizing the following data fields: Vertical speed, Ground speed, Altitude relative to terrain / height above ground, when terrain data is available and Heading.

These parameters would provide substantially more meaningful post-flight insight than heart-rate metrics for pilots reviewing a flight. They would help users better understand climb and descent behavior, aircraft energy management, terrain awareness, and directional control during different phases of flight. My suggestion is to remove heart-rate information completely, to allow aviation-specific metrics to replace or take priority over fitness metrics within the Fly activity summary and historical flight review screens.

Ideally, this improvement would be implemented in both places: On the D2 Mach 1 watch and In the Garmin Connect app.

From a pilots perspective, the Fly activity should present post-flight information in a way that reflects the operational nature of aviation, rather than the fitness-oriented logic used for running, cycling, or other exercise activities.

Aviation users would likely benefit from having a dedicated post-flight review profile in Garmin Connect, where aviation metrics are treated as primary and physiological fitness data as secondary or optional.

Thank you for your continued development of the D2 aviation ecosystem. I hope you will consider this enhancement, as it would make the Fly activity significantly more useful for pilots.

The heart rate zone are useless

jmescalante — Sat, 04 Apr 2026 04:34:20 GMT

Ideally, this improvement would be implemented in both places: On the D2 Mach 1 watch and In the Garmin Connect app.

Thank you for your continued development of the D2 aviation ecosystem. I hope you will consider this enhancement, as it would make the Fly activity significantly more useful for pilots.

Garmin Pilot & D2 Mach 2 no Flightplan Sync

Martinxxxx — Sat, 14 Mar 2026 22:20:55 GMT

Title: Flight plan sync between Garmin Pilot and D2 no longer working

Hi everyone,

since recently the Flight Sync between Garmin Pilot and my Garmin D2 seems to have stopped working. Flight plans are no longer synchronized to the watch.

What I already checked:

- The connection between the watch and Garmin Connect works normally.
- Garmin Connect and the D2 are both connected correctly.
- iPhone and apps were restarted.
- Garmin Pilot and Garmin Connect are updated to the latest versions.
- I also reloaded all databases in Garmin Pilot.

Despite all of that, no flight plans are transferred to the D2 anymore.

Before this it worked reliably, so something must have changed recently.

Has anyone experienced the same issue or found a solution?
Is there a setting or reset step I might be missing?

Thanks for any ideas.

D2 Mach 2 - software 21.27 - Crash During Run

SteveA-NZ — Tue, 03 Mar 2026 20:51:54 GMT

D2 Mach 2 - crashed 24 minutes into a run, and took a couple of minutes to restart.

https://connect.garmin.com/app/activity/22049063678

Data there show's the break where it happened.

This is something new that is happening as running 5-6 days a week, following the Garmin training plans and listening to Spotify during the runs.

Looks like others in the Fenix forum are having similar issues.

D2 Mach 2 showing false wind on weather radar

Ruben Gies — Sun, 11 Jan 2026 11:44:27 GMT

My new D2 Mach 2 is showing false wind direction and velocity on the factory weather radar/map app. The METAR/TAFs are showing correct conditions, as well as the weather widget for both local weather and airport weather. Also, temperature, cloud and precipitation readings on the weather radar seem to be correct.

Anyone have any idea why this info is off?

For what it's worth, current actual winds are 16006KT at the airport (as shown in the METAR report and weather widget) and 180 at 8kt local, but the radar is showing roughly 040 at 11kt (both local and at the airport).

ECG problem

Julienflying — Tue, 30 Dec 2025 14:57:31 GMT

Hi,

Since the 20.07 update (D2Mach2), the ECG app no longer works; nothing happens when you place two fingers on the edges!

RE: ECG problem

Julienflying — Tue, 30 Dec 2025 15:09:32 GMT

Two successive reboots resolved the problem.

Stealth mode problem in D2 Mach 2

Julienflying — Mon, 29 Dec 2025 10:38:00 GMT

Hi,

Stealth mode isn't working on my D2 Mach 2.
I've done several activities, activating stealth mode before starting and then deactivating it afterward for syncing with Garmin Connect. I could see my entire route with the track and map, and the same for all my contacts! Before, with my old Tactix 7, the GPS track didn't appear. There's a major privacy issue; stealth mode doesn't work at all!

The problem should be fixed in the next version of the software.

Why does my D2 Mach 1 show sun set in 22hours and 18 minutes every day

8203962 — Fri, 19 Dec 2025 00:43:41 GMT

Why does my D2 Mach 1 show sun set in 22 hours and 18 minutes every day. Have I changed a setting that I didn’t notice?

Problem creating routes on the watch

Julienflying — Thu, 18 Dec 2025 10:20:06 GMT

Hy,

I'm having a problem with my D2mach2. I can't create a route directly from the watch when trying to create waypoints using the map! When I'm on the map, no button allows me to select the chosen position by swiping my finger on the map. The only active button is the back button, so the chosen waypoint isn't saved! I think it is a bug !!!!!

RE: Problem creating routes on the watch

LDSPilot — Thu, 18 Dec 2025 13:41:12 GMT

I hope that I’m wrong or that it’s pending in a future update, but the D2 Mach 2 only advertises ‘Direct To’ navigation; so I don’t think you can build routes on the watch itself; only ‘Direct To’ an airport. To build and use routes; Garmin’s Pilot App must be purchased (see what they did there?) and synced. As a long time D2 owner and user, I’m seeing a handful of missing features and changes that I’m not so excited about…

RE: Garmin D2 Air X10

Garmin-CB — Mon, 24 Nov 2025 20:49:10 GMT

Hello 4996806 , it sounds like the Garmin Connect App is not running on the device your watch is connected to. The D2 watches needs the Garmin Connect App in order to receive current weather information and when it does not have that information it will show the red exclamation marks you are seeing.

Garmin D2 Air X10

4996806 — Thu, 06 Mar 2025 12:44:08 GMT

Good day,

I have a Garmin D2 Air X10 that I bought about 6 months ago and I have been struggling for a while now to get any weather information on my watch and I am running out of ideas how to fix it.

I have attached four images that will hopefully help to explain the problem.

First of all on my permanent watch face I have zero weather information like I used to have. When I go onto the METAR or TAF pages, there is also zero information. When I go into the page with my favourite airport, all the information about the airport and it's frequencies, runway information etc. are the except the weather which does not make a lot of sense. When I then exit that page, I get these red exclamation marks.

I hope the explanation makes sense and I will really appreciate any assistance with this.

la montre donne tout le temps la démonstration pas moyen de l'arretée que dois-je faire .merci

8197737 — Fri, 21 Feb 2025 11:43:19 GMT

Monsieur,

La montre donne tout le temps la démonstration, je ne sais pas l'arrêtée.

Que dois-je faire

RE: la montre donne tout le temps la démonstration pas moyen de l'arretée que dois-je faire .merci

Garmin-NG — Fri, 21 Nov 2025 17:26:39 GMT

Hello, can you please describe your problem a bit more? Please make sure your software is up to date. You can use this support article to help you update the software on your watch: https://support.garmin.com/en-US/?faq=3BiZjGHCQS95xhFsfu5QD7. Additionally, please make sure your Connect app is up to date, as well as your phone's operating system.

RE: D2 Mach 2 in flyGarmin

Garmin-AH — Mon, 10 Nov 2025 17:09:55 GMT

Hi Julienflying you no longer need to add the D2 Mach 2 to the devices in flygarmin.com. The device should have registered via the Connect application and can be found under Products at www.garmin.com after you have signed in. The aviation database updates are free and will download to the watch when you connect it to a WiFi source. Once connected to a network, database updates are automatically downloaded overnight.

D2 Mach 2 in flyGarmin

Julienflying — Mon, 10 Nov 2025 14:49:51 GMT

Hi,

I can't add my new watch D2 Mach 2 into my Flygarmin account ; this watch doesn't appear in the list of devices I can add while all the other D2 watches appaer !

RE: Flying Activity vspd and GS Data unavailable on Tactix 8

5305456 — Tue, 07 Oct 2025 12:52:30 GMT

I think it’s bugged, the ground speed works fine before update, but the GPS ALT was showing pressure altitude. After update, the GPS Alt is fixed but the Ground Speed is not working anymore.

Flying Activity vspd and GS Data unavailable on Tactix 8

psierra117 — Tue, 23 Sep 2025 11:33:29 GMT

Since about 2 Updates the vspd and gs are — on the flying activity, anyone else noticed this or is there a workaround? The Data collected and displayed in the connect app are just fine after the flight.

Barometer & altitude

6188827 — Thu, 27 Mar 2025 22:49:16 GMT

While at the airport KBDU (03.27.25 @ 2215Z) I calibrated the barometer using DEM resulting in the correct altitude 5285. I then set barometric pressure to the airport METAR 29.86. The D2 Mach I is connected via Bluetooth. Within a few minutes the pressure changes to 29.96 and the altitude is 5378. This happens every time with similar spreads.

Thanks Dan