Amazfit T-Rex Ultra 2: A2550 · 51 mm · Black Magma · silicone strap
Garmin Venu 4 (45 mm): 010-03014-00 · Slate case / black silicone band
| Specification | Amazfit T-Rex Ultra 2 | Garmin Venu 4 (45 mm) |
|---|---|---|
| Release year | 2026 | 2025 |
| Announcement / availability | 19 February 2026 Amazfit | — |
| Display | 1.5-inch AMOLED · 480 × 480 · sapphire glass Amazfit | 1.4-inch AMOLED; 454 × 454; touch, optional always-on mode Garmin |
| Peak brightness | Up to 3000 nits Amazfit | — |
| Body | Polymer case; Grade 5 titanium bezel, buttons and back Amazfit | — |
| Size / weight | 51 × 51 × 14.3 mm; 89.2 g with strap Amazfit | — |
| Strap | 26 mm silicone; 145–215 mm wrist Amazfit | — |
| Storage | 64 GB total; up to 26.7 GB user space Amazfit | 8 GB; music storage Garmin |
| Positioning | Dual-band GNSS; six satellite systems Amazfit | Multi-GNSS, multi-band GPS and SatIQ automatic selection Garmin |
| Sensors | BioTracker 6.0 PPG; barometer, compass, motion and temperature sensors Amazfit | — |
| Battery | 870 mAh; up to 30 typical / 15 heavy / 10 AOD days Amazfit | Up to 12 days in smartwatch mode; 20 hours GPS-only; 17 hours multi-band Garmin |
| GPS battery modes | Up to 50 Accurate / 90 saving / 177 max-battery hours Amazfit | — |
| Wireless | Bluetooth 5.2 BLE; 2.4 GHz Wi-Fi Amazfit | — |
| Water / diving | 10 ATM; recreational diving up to 45 m Amazfit | — |
| Phone connection | Android 7+ / iOS 15+; Zepp app Amazfit | — |
| Charging | Magnetic charging puck; USB-C cable separate Amazfit | — |
| Calls | Bluetooth calls using microphone/speaker Amazfit | — |
| Launch | — | Announced 17 September 2025; sales began 22 September 2025 Garmin |
| Cover glass | — | Corning Gorilla Glass 3 Garmin |
| Case and band | — | Stainless steel / fibre-reinforced polymer; 22 mm quick-release band Garmin |
| Weight | — | 38 g case; 56 g with silicone band Garmin |
| Always-on display | — | Up to 4 days, according to Garmin Garmin |
| Water resistance | — | 5 ATM; suitable for swimming Garmin |
| Connectivity and calls | — | Bluetooth, ANT+, Wi-Fi; speaker / microphone, paired compatible phone required for calls Garmin |
| Health and training | — | Heart rate, HRV, sleep, skin temperature; training readiness and recovery tracking Garmin |
| Software 18.32 | — | Includes fixes for resets when changing screens during activities and Spotify playback after skipping tracks with Bluetooth headphones Garmin |