Amazfit T-Rex Ultra 2 / Apple Watch Series 11 (46 mm, GPS)

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

Apple Watch Series 11 (46 mm, GPS): 46 mm aluminium case, GPS; Rose Gold, Silver, Space Gray, Jet Black. The 42 mm and GPS + Cellular (A3335, A3337) versions and the titanium cases with sapphire crystal are separate models.

SpecificationAmazfit T-Rex Ultra 2Apple Watch Series 11 (46 mm, GPS)
Release year20262025
Announcement / availability19 February 2026 Amazfit—
Display1.5-inch AMOLED · 480 × 480 · sapphire glass AmazfitAlways-On Retina, LTPO3 OLED (wide-angle OLED); 416 × 496 pixels, 1196 mm²; 326 ppi; up to 2,000 nits, 1 nit minimum

Because LTPO can drop the refresh rate very low, the display stays dimly on even with the wrist down. Wide-angle OLED is used to reduce brightness loss when the screen is viewed from the side.

Apple
Peak brightnessUp to 3000 nits

With auto brightness; unavailable in low-temperature mode or below 30% battery.

Amazfit		—
BodyPolymer case; Grade 5 titanium bezel, buttons and back Amazfit—
Size / weight51 × 51 × 14.3 mm; 89.2 g with strap

Thickness excludes heart-rate sensor base.

Amazfit		—
Strap26 mm silicone; 145–215 mm wrist Amazfit—
Storage64 GB total; up to 26.7 GB user space Amazfit—
PositioningDual-band GNSS; six satellite systems Amazfit—
SensorsBioTracker 6.0 PPG; barometer, compass, motion and temperature sensors Amazfit—
Battery870 mAh; up to 30 typical / 15 heavy / 10 AOD days

Separate manufacturer scenarios, not continuous GPS endurance.

Amazfit		Up to 24 hours of normal use; up to 38 hours in Low Power Mode; built-in lithium-ion

Times are based on Apple’s usage scenario; workouts, GPS and the Always-On display shorten them.

Apple
GPS battery modesUp to 50 Accurate / 90 saving / 177 max-battery hours Amazfit—
WirelessBluetooth 5.2 BLE; 2.4 GHz Wi-Fi AmazfitBluetooth 5.3; Wi-Fi 4 (802.11n) 2.4 and 5 GHz; second-generation Ultra Wideband; Apple Pay, GymKit

This GPS model has no cellular connection; calls and data come through the paired iPhone or Wi-Fi. Ultra Wideband availability varies by country.

Apple
Water / diving10 ATM; recreational diving up to 45 m

Not for technical, cave or mixed-gas diving.

Amazfit		—
Phone connectionAndroid 7+ / iOS 15+; Zepp app Amazfit—
ChargingMagnetic charging puck; USB-C cable separate AmazfitAbout 80% in 30 minutes; 8 hours of use from 15 minutes; 8 hours of sleep tracking from 5 minutes

The box includes a Magnetic Fast Charger to USB-C cable; Apple’s fast-charge figures used a separately sold 20 W USB-C adapter.

Apple
CallsBluetooth calls using microphone/speaker Amazfit—
Front glass—Ion-X glass with ceramic coating

According to Apple, the coating gives twice the scratch resistance of the Series 10 Ion-X glass. Titanium cases use sapphire crystal.

Apple
Chip and storage—S10 SiP (64-bit dual-core processor, 4-core Neural Engine); W3 wireless chip; 64 GB Apple
Health sensors—Electrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor

The electrical sensor records a single-lead ECG with the ECG app. According to Apple, blood oxygen and wrist temperature are for general wellness, not medical use.

Apple
Health notifications—Hypertension notifications; sleep apnea notifications; sleep score and sleep stages; irregular rhythm and high/low heart rate notifications

Hypertension notifications do not measure blood pressure; they alert when patterns in the optical sensor data suggest high blood pressure. According to Apple, they are not for users under 22, those already diagnosed with hypertension or pregnant users.

Apple
Water and dust resistance—50 m (ISO 22810:2010); IP6X dust

Suitable for shallow swimming in a pool or the sea; not for scuba diving, waterskiing or high-velocity water sports.

Apple
Location—GPS, GLONASS, Galileo, QZSS, BeiDou; compass, always-on altimeter Apple
Dimensions and weight—46 × 39 × 9.7 mm; 37.8 g; fits 140–245 mm wrists

The 42 mm aluminium GPS version weighs 30.3 g.

Apple
Compatibility—iPhone 11 or later, or iPhone SE (2nd generation or later), running iOS 26 or later

The watch cannot be used with Android phones.

Apple