Amazfit Bip 5 Unity vs Amazfit T-Rex 3

Amazfit Bip 5 Unity

Amazfit Bip 5 Unity

vsAmazfit T-Rex 3

Amazfit T-Rex 3

Amazfit Bip 5 UnityAmazfit T-Rex 3
Display1.91-inch TFT touchscreen, 320x380 pixels, 260 ppi, 2.5D tempered glass with anti-fingerprint coating1.5-inch AMOLED, 480x480, 322 ppi, up to 2,000 nits peak brightness, Gorilla Glass
Case45.8 x 37.08 x 10 mm without sensor base; 24 g without strap; stainless steel middle frame; one button; 22 mm quick-release antibacterial liquid silicone strap; fits wrists of 155-210 mm—
BatteryUp to 11 days typical use (300 mAh rated); up to 5 days heavy use; up to 26 days in Battery Saver mode; about 2 hours to charge via magnetic cable (Amazfit figures)Up to 27 days typical use, up to 13 days heavy use, up to 40 days battery saver, up to 180 hours in GNSS max battery life mode (700 mAh, magnetic charging, about 3 hours for a full charge)
HealthBioTracker PPG biometric sensor (supports blood oxygen): heart rate, sleep tracking with stages and breathing quality, cycle tracking, three-metric quick check—
SensorsBioTracker PPG, 3-axis acceleration sensorBioTracker 6.0 PPG (heart rate, blood oxygen), accelerometer, gyroscope, geomagnetic sensor, barometric altimeter, ambient light, temperature
Features120+ sports modes with auto-detection of six sports, interval training plans on the watch, 100+ watch faces, 70+ downloadable mini apps and games, Bluetooth calling and Alexa on models with built-in microphone and speaker, workout sync to Strava and adidas Running—
OSZepp OS 3.0Zepp OS 4 at launch, with Zepp Coach and an AI assistant based on OpenAI GPT-4o
ConnectivityBluetooth 5.2 BLE; Android 7.0 and above, iOS 14.0 and aboveBluetooth 5.2 and BLE, Wi-Fi 2.4 GHz, NFC (Zepp Pay), microphone
DurabilityIP68 water resistance10 ATM; freediving certified to 45 m (EN13319, ISO 6425, GB/T 18828); operates down to -30 C
ColorsCharcoal, Grey (as listed on Amazfit's Australian store)Onyx, Lava, Haze Gray
Body—316L stainless steel bezel, polymer middle frame, liquid silicone strap (22 mm); 48.5 x 48.5 x 13.75 mm, 68.3 g without strap; 4 buttons
Positioning—Dual-band GNSS with six satellite systems; free offline maps, contour maps, ski maps, turn-by-turn navigation
Sports—170+ sports modes at launch including HYROX race, freediving, ultramarathon and strength training templates
Compatibility—Zepp App on Android 7.0+ and iOS 14.0+