Grand Raid Ventoux by UTMB 2027
Which GPS watch for Grand Raid Ventoux by UTMB
For Grand Raid Ventoux by UTMB, 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
Coros
Coros Pace 3
Trail running GPS watch with track navigation, barometric altimeter and up to 38 h battery life in GPS mode. Lightweight (39 g), accurate and with offline maps. Best value for mountain navigation.
Why this watch
Grand Raid Ventoux by UTMB is run over more than a day (estimate ~29h 24min). You need extreme battery life: a watch that can record 37 h or more in GPS, or one with a power-saving mode and on-the-go charging.
Other options to consider
Garmin
Garmin Instinct 3 Solar 45 mm
Ultra-rugged 45 mm GPS watch with solar charging, LED flashlight and health monitoring. Up to 28 days of battery in smartwatch mode with solar charging. For those who prioritise toughness and battery over onboard maps on their mountain outings.
Suunto
Suunto 9 Peak Pro
Titanium mountain watch with AMOLED display, multi-band GPS and sapphire glass. Up to 40 h in multi-band GPS mode and 300 h in tour mode, at just 64 g. Suunto's high end without the size and extreme battery of the Vertical, for those who prioritise lightness and premium finishes.
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