WOP Challenge Bilbao-Bizkaia 2026
Which GPS watch for WOP Challenge Bilbao-Bizkaia
For WOP Challenge Bilbao-Bizkaia, 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 Instinct 3 Solar 50 mm
Ultra-rugged GPS watch with solar charging: up to 40 days in smartwatch mode (unlimited with sun), 60 h GPS and 34 h multi-band. Military-standard case, LED flashlight and dual-frequency GPS. For those who prioritise toughness and battery over onboard maps on their mountain outings.
Why this watch
WOP Challenge Bilbao-Bizkaia is run over more than a day (estimate ~47h 03min). You need extreme battery life: a watch that can record 59 h or more in GPS, or one with a power-saving mode and on-the-go charging.
Other options to consider
Suunto
Suunto Vertical 2
Adventure watch with a 1.5" 2,000-nit AMOLED display, a bezel-integrated LED flashlight (white and red, with SOS mode) and free offline topo maps. Up to 65 h of dual-band GPS and 20 days of daily use. Built for long ultras, mountain traverses and night sections.
Coros
Coros Apex 2 Pro
Mountain watch with outstanding battery life: 66 h in full GPS, 26 h in dual-frequency and up to 21 days in daily use, at just 53 g. Free offline maps, multi-band GPS, MP3 music and touchscreen. The light, long-lasting alternative to Garmin for ultras and crossings.
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