Amazfit T-Rex Ultra 2 / Apple Watch Series 10 (46 mm, GPS, aluminium)

Amazfit T-Rex Ultra 2: A2550 · 51 mm · Black Magma · silicone strap

Apple Watch Series 10 (46 mm, GPS, aluminium): 46 mm aluminium case, GPS only (no cellular); Jet Black, Rose Gold and Silver. The 42 mm case, GPS + Cellular and titanium versions differ in weight, materials and connectivity.

Specification	Amazfit T-Rex Ultra 2	Apple Watch Series 10 (46 mm, GPS, aluminium)
Release year	2026	2024
Announcement / availability	19 February 2026 Amazfit	—
Display	1.5-inch AMOLED · 480 × 480 · sapphire glass Amazfit	LTPO3 OLED Always-On Retina, wide-angle OLED; 416 × 496 pixels, 326 ppi; 1220 mm² display area Up to 2000 nits and down to 1 nit. Apple says the wide-angle OLED looks up to 40% brighter when viewed at an angle, making the watch easier to read without raising the wrist. Apple
Peak brightness	Up to 3000 nits With auto brightness; unavailable in low-temperature mode or below 30% battery. Amazfit	—
Body	Polymer case; Grade 5 titanium bezel, buttons and back Amazfit	—
Size / weight	51 × 51 × 14.3 mm; 89.2 g with strap Thickness excludes heart-rate sensor base. Amazfit	—
Strap	26 mm silicone; 145–215 mm wrist Amazfit	—
Storage	64 GB total; up to 26.7 GB user space Amazfit	—
Positioning	Dual-band GNSS; six satellite systems Amazfit	—
Sensors	BioTracker 6.0 PPG; barometer, compass, motion and temperature sensors Amazfit	—
Battery	870 mAh; up to 30 typical / 15 heavy / 10 AOD days Separate manufacturer scenarios, not continuous GPS endurance. Amazfit	—
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 Not for technical, cave or mixed-gas diving. 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	—
Case	—	46 mm aluminium; Ion-X front glass The aluminium version uses Ion-X glass; the titanium versions have sapphire crystal. Apple
Chip and storage	—	S10 SiP; 64-bit dual-core processor, 4-core Neural Engine; 64 GB storage Apple
Health and motion sensors	—	Electrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high dynamic range gyroscope; ambient light sensor The electrical sensor enables ECG recordings and the optical sensor continuous heart rate. Availability of health features varies by country. Apple
Water and dust	—	50 m water resistance (WR50, ISO 22810:2010); IP6X dust; depth gauge and water temperature sensor Suitable for shallow-water activities such as swimming, not for scuba diving or high-velocity water sports. The depth gauge is for snorkelling down to 6 metres. Apple
Connectivity and location	—	Wi-Fi 4 (802.11n); Bluetooth 5.3; second-generation Ultra Wideband; L1 GPS, GLONASS, Galileo, QZSS, BeiDou This version has no cellular connection, so calls and data away from the phone need Wi-Fi. Location uses only the L1 band; there is no dual-frequency GPS. Apple
Battery and charging	—	Up to 18 hours normal use, up to 36 hours in Low Power Mode; about 80% in around 30 minutes with fast charging Fast charging uses the included magnetic fast charger to USB-C cable; the adapter is sold separately. Apple
Size and weight	—	46 × 39 × 9.7 mm; 36.4 g (without band) Apple
Compatibility	—	iPhone Xs or later with iOS 18 or later (including iPhone SE 2nd generation or later) An iPhone is required for setup and use; it does not work with Android phones. Apple