Amazfit T-Rex 3 vs Garmin Fenix 8

Amazfit T-Rex 3

Amazfit T-Rex 3

vsGarmin Fenix 8

Garmin Fenix 8

Amazfit T-Rex 3Garmin Fenix 8
Display1.5-inch AMOLED, 480x480, 322 ppi, up to 2,000 nits peak brightness, Gorilla GlassAMOLED (43, 47 and 51 mm) or solar-charging always-on display (47 and 51 mm)
Body316L 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—
BatteryUp 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)—
PositioningDual-band GNSS with six satellite systems; free offline maps, contour maps, ski maps, turn-by-turn navigation—
Durability10 ATM; freediving certified to 45 m (EN13319, ISO 6425, GB/T 18828); operates down to -30 CTested to U.S. military standards for thermal, shock and water resistance; 40 m dive-rated case; leakproof metal buttons
ConnectivityBluetooth 5.2 and BLE, Wi-Fi 2.4 GHz, NFC (Zepp Pay), microphone—
SensorsBioTracker 6.0 PPG (heart rate, blood oxygen), accelerometer, gyroscope, geomagnetic sensor, barometric altimeter, ambient light, temperature—
OSZepp OS 4 at launch, with Zepp Coach and an AI assistant based on OpenAI GPT-4o—
Sports170+ sports modes at launch including HYROX race, freediving, ultramarathon and strength training templates—
CompatibilityZepp App on Android 7.0+ and iOS 14.0+—
ColorsOnyx, Lava, Haze Gray—
Battery (smartwatch mode)—Up to 29 days (51 mm AMOLED); up to 48 days (51 mm solar, always-on display, Garmin test conditions)
Materials—Optional titanium bezel and scratch-resistant sapphire lens
Audio—Built-in speaker and microphone, voice commands
Light—Built-in LED flashlight (variable intensity, red light, strobe)
Navigation—Multi-band GPS with SatIQ, altimeter, barometer, 3-axis compass, TopoActive maps (sapphire models)
Health—Pulse Ox, Body Battery, HRV status, sleep monitoring, ECG app (region dependent)
Price—From $999.99 (suggested retail, launch)