Amazfit T-Rex 3 vs Coros Pace 3
Amazfit T-Rex 3 (42 h GPS, 68 g) vs Coros Pace 3 (38 h GPS, 39 g). Side-by-side spec comparison: battery, weight, maps, multi-band GPS and price. Which GPS watch should you buy?
AmazfitAmazfit T-Rex 3Ultra-rugged outdoor watch with dual-band GPS, offline maps and a 2,000-nit AMOLED display, at a mid-range price. 42 h in maximum-accuracy mode and up to 27 days in daily use. Military standard, 100 m water resistance and onboard music. Garmin Instinct-style toughness for far less.
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CorosCoros Pace 3Trail 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.
View on AmazonSpec-by-spec comparison
| Spec | Amazfit T-Rex 3 | Coros Pace 3 |
|---|---|---|
| GPS battery | 42 h | 38 h |
| Multi-band battery | Yes | 15 h |
| Smartwatch | 27 days | 24 days |
| Weight | 68 g | 39 g |
| Maps | ✓ | ✓ |
| Multi-band | ✓ | ✓ |
| Music | ✓ | – |
| Display | AMOLED | MIP |
| Price | Entry | Entry |
GPS battery = each manufacturer's standard GPS mode; multi-band = dual-frequency (maximum accuracy). On Suunto, Polar Grit and Amazfit T-Rex the GPS figure already corresponds to dual-band mode. Figures verified against the manufacturer.
Verdict
For maximum autonomy on long ultras, Amazfit T-Rex 3 lasts longer in GPS mode. If you want the lightest watch on your wrist, go for Coros Pace 3. Both sit in the same price segment, so let battery, weight and the feature you value most decide.