Amazfit Balance 3 vs Amazfit T-Rex Ultra 2: which should you buy?
Get the Amazfit Balance 3. It is the better watch for running and workouts, it is just as ready for the water, and it costs far less than the Amazfit T-Rex Ultra 2. The Ultra 2 is built for expeditions, and most people never take one.
Who should get the Amazfit Balance 3
Get the Balance 3 if you want one tough watch for the gym, the trail and the pool. Amazfit lists more than 180 workout modes, HYROX training tools and up to 21 days of typical battery, with dual-band GPS and offline maps. It is rated for swimming and freediving, and its case is built to take knocks. On an iPhone it works with limits, so some features that need deeper phone access stay on Android.
Who should get the Amazfit T-Rex Ultra 2
Get the T-Rex Ultra 2 if you want Amazfit's toughest watch. Amazfit certifies it for diving to 45 meters and up to 30 days of typical battery, and it works with an iPhone and with an Android phone. It is built for expeditions, and it is priced like it.
The differences that matter
Both are certified for diving, with the Balance 3 rated for freediving and recreational scuba to 45 meters. In the water, they match.
The Ultra 2 lasts longer between charges and is the more rugged of the two, and it works fully with an iPhone. For weeks in the backcountry, those are real advantages.
Price and value
Today the Amazfit Balance 3 costs $369.99 (checked Nov. 4, 2026) and the Amazfit T-Rex Ultra 2 costs $549.99 (checked Nov. 4, 2026). The Amazfit Balance 3 is cheaper by $180.
For everyday training with room for adventure, pick the Amazfit Balance 3.
Amazfit Balance 3 vs Amazfit T-Rex Ultra 2

Amazfit Balance 3
$369.99 at Amazfit
Amazfit T-Rex Ultra 2
$549.99 at Amazfit- Amazfit Balance 3: 1.5-inch AMOLED, 480 x 480, up to 3,000 nits, sapphire glassDisplayAmazfit T-Rex Ultra 2: 1.5 in AMOLED, 480 Ă— 480, up to 3,000 nits, sapphire glass
- Amazfit Balance 3: Up to 21 days with typical use, up to 10 days with heavy use; up to 41 hours in Accuracy GPS modeBatteryAmazfit T-Rex Ultra 2: Typical use: up to 30 days; heavy use: up to 15 days; accurate GPS: up to 50 hrs; GPS max: 177 hrs
- Amazfit Balance 3: 62g (stainless steel) or 55g (titanium), without the strapWeightAmazfit T-Rex Ultra 2: 89.2g with strap
- Amazfit Balance 3: 10 ATM; 45m freediving and recreational scuba divingWater resistanceAmazfit T-Rex Ultra 2: 10 ATM; freediving and recreational scuba to 45 m