Ultra Trail Gredos 2026
Which GPS watch for Ultra Trail Gredos
For Ultra Trail Gredos, 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 Forerunner 265
Running watch with AMOLED display, dual-frequency multi-band GPS and onboard music. 20 h in GPS mode (14 h multi-band) and 13 days in smartwatch mode, at 47 g. The perfect balance of accuracy, advanced metrics and price for training and racing from 10K to marathon.
Why this watch
Ultra Trail Gredos is an ultra: you'll finish in around 15h 21min. Your watch must record at least 20 h of GPS without recharging. Prioritise battery life and, if needed, drop to standard GPS mode to reach the finish with charge to spare.
Other options to consider
Suunto
Suunto Run 2
Lightweight running GPS watch (35 g case) with a 1.32" AMOLED display of up to 2,000 nits, dual-band GPS, free offline maps and offline MP3 music. Up to 24 h of GPS in the most accurate mode and around 10 days in daily use. A light watch with maps for races up to mid-distance.
Mibro
Mibro GS Explorer S
Budget GPS watch with dual-frequency L1+L5 GPS, a 1.32" AMOLED display, ceramic bezel and MIL-STD-810H military-grade durability. Around 20 days of battery in normal use and up to 25 h in GPS mode, with Mibro Coach training plans. The entry-level pick for hitting the trails with accurate GPS without paying Garmin money.
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