Ultra Tour des 4 Massifs 2026
Which GPS watch for Ultra Tour des 4 Massifs
For Ultra Tour des 4 Massifs, what really matters in a watch is that the battery lasts to the finish. We estimate a mid-pack runner's time and recommend the watch whose battery covers it with margin.
Our recommendation
Garmin
Garmin Enduro 3
The battery king for ultra-distance: 120 h in GPS mode (60 h multi-band) and 36 days in smartwatch mode, extendable with solar charging. MIP display, topo maps, LED flashlight and just 63 g. Built for 100-milers, multi-day crossings and backyard ultras without worrying about battery.
Why this watch
Ultra Tour des 4 Massifs is run over more than a day (estimate ~56h 40min). You need extreme battery life: a watch that can record 71 h or more in GPS, or one with a power-saving mode and on-the-go charging.
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