Description

This widget is an extension of Tri-NavTool (https://apps.garmin.com/apps/0d81586f-1587-42d8-8869-47d17e588640). It adds Simply Lunar (https://apps.garmin.com/apps/958f393d-f9af-4ed5-8b1c-e4a868bfd2db) and shows OS grid reference, magnetic declination, altitude and lunar details for the current location. By default, as soon as the widget has a good GPS fix it will show a one-off snapshot of its values. This is to save the battery. Press and hold MENU to continuously update the display. This mode is shown on the screen by * next to the title. Press and hold MENU again to return to snapshot mode. Press SELECT to cycle through the displays. As with the OS Grid Reference widget you can choose the number of digits to be displayed but in this case the font and layout are fixed. You can also choose whether to display the names of the points of the compass. Before the widget has a good GPS fix it will show its last declination value in grey, if there is one. Don’t forget, this could be very wrong if you’re nowhere near the same location. You can set the units for the altitude display separately from the watch’s overall settings. Please remember, the widget takes its altitude value directly from the watch sensor. Even if it is badly calibrated or completely wrong that is what will be shown. This is a device issue, the widget can do nothing about it. Please see the descriptions of the originals for further information and acknowledgements. The widget has been tested on a Forerunner 255, a fēnix® 5X and other devices in the simulator. Please contact me directly if you have any problems, comments or requests. Don’t forget to include your email address if you’d like a reply. Thank you @Andrew for requesting this widget and for helping test it.

What is new

Added latest devices. Built with SDK 9.2.0 (Version 1.1.0.d) Added latest devices. Built with SDK 9.2.0 (Version 1.1.0.c) Added latest devices. Built with SDK 9.1.0 (Version 1.1.0.a) Added some devices. Built with SDK 9.1.0 (Version 1.1.0.b) Added some new devices. Built with SDK 9.1.0 (Version 1.1.0.a) Updated to WMM 2025. Built with SDK 7.3.1. (Version 1.1.0)

Screenshots

TriNav Plus · Screenshot 0 TriNav Plus · Screenshot 1 TriNav Plus · Screenshot 2 TriNav Plus · Screenshot 3

Supported language (1)

English

Compatible devices (146)

Captain Marvel Captain Marvel D2™ Air D2™ Air X10 D2™ Charlie D2™ Charlie D2™ Delta D2™ Delta PX D2™ Delta PX D2™ Delta S D2™ Mach 1 D2™ Mach 1 Pro D2™ Mach 2 D2™ Mach 2 Pro Darth Vader™ Darth Vader™ Descent™ Mk1 Descent™ Mk1 Descent™ MK2 Descent™ MK2 Descent™ Mk2S Descent™ Mk2S Descent™ MK3 - 43mm Descent™ MK3i - 51mm Enduro™ 2 Enduro™ 3 Enduro™ 4 epix™ (Gen 2) epix™ (Gen 2) epix™ Pro (42mm) epix™ Pro (47mm) epix™ Pro (51mm) fēnix® 5 Plus fēnix® 5 Plus fēnix® 5S Plus fēnix® 5S Plus fēnix® 5X fēnix® 5X fēnix® 5X Plus fēnix® 5X Plus fēnix® 6 Pro fēnix® 6 Pro fēnix® 6 Pro Dual Power fēnix® 6 Pro Solar fēnix® 6S Pro fēnix® 6S Pro fēnix® 6S Pro Dual Power fēnix® 6S Pro Solar fēnix® 6X Pro fēnix® 6X Pro fēnix® 7 fēnix® 7 fēnix® 7 Pro fēnix® 7 Pro – Solar Edition (No Wi-Fi®) fēnix® 7S fēnix® 7S fēnix® 7S Pro fēnix® 7X fēnix® 7X fēnix® 7X Pro fēnix® 7X Pro No Wi-Fi fēnix® 8 AMOLED (43mm) fēnix® 8 AMOLED (47mm/51mm) fēnix® 8 Pro fēnix® 8 Solar (47mm) fēnix® 8 Solar (51mm) fenix® 9 - 43 mm fenix® 9 – 47 mm fenix® 9 Pro - 43 mm fenix® 9 Pro - 47 mm fenix® 9 Pro - 51 mm fenix® 9 Pro - Solar 47 mm fenix® 9 Pro - Solar 51 mm fēnix® E First Avenger First Avenger ForeAthlete 645 Music ForeAthlete 745 Forerunner® 165 Forerunner® 165 Music Forerunner® 170 Forerunner® 170 Music Forerunner® 255 Forerunner® 255 Music Forerunner® 255S Forerunner® 255S Music Forerunner® 265 Forerunner® 265S Forerunner® 645 Music Forerunner® 745 Forerunner® 945 Forerunner® 945 Forerunner® 945 LTE Forerunner® 955 Dual Power Forerunner® 965 MARQ® (Gen 2) MARQ® Adventurer (Gen 3) MARQ® Commander (Gen 2) – Carbon Edition MARQ™ Adventurer MARQ™ Adventurer MARQ™ Athlete MARQ™ Athlete MARQ™ Aviator MARQ™ Aviator MARQ™ Aviator (Gen 2) MARQ™ Captain MARQ™ Captain MARQ™ Commander MARQ™ Commander MARQ™ Driver MARQ™ Driver MARQ™ Expedition MARQ™ Expedition MARQ™ Golfer MARQ™ Golfer Mercedes-Benz Venu® Mercedes-Benz Venu® Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2 Mercedes-Benz Venu® 2S Mercedes-Benz Venu® 2S quatix® 6 quatix® 6X Rey™ Rey™ tactix® 7 tactix® 7 – AMOLED Edition tactix® 8 – 47 mm, AMOLED tactix® 8 – 51 mm, Solar Venu® Venu® Venu® 2 Venu® 2 Venu® 2 Plus Venu® 2 Plus Venu® 2S Venu® 2S Venu® 3 Venu® 3S vívoactive® 3 Music vívoactive® 3 Music vívoactive® 3 Music vívoactive® 4 vívoactive® 4 vívoactive® 4S vívoactive® 4S

Recent metric trend

Rating
Reviews
Snapshot dates
2026-10-27 → 2026-10-28