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    Amazfit T-Rex Ultra 2 Highlights

    • 870 mAh battery
    • 1.5-inch OLED display
    • 3,000 nits peak brightness
    • 10 ATM water resistance
    • 89.2 g weight
    • Up to 64GB storage

    Compare Amazfit T-Rex Ultra 2 with Similar Products

    Compare Amazfit T-Rex Ultra 2 specs, features and price with similar smartwatches and alternatives.

    Compare Amazfit T-Rex Ultra 2 with Similar Products
    Selected Item
    Amazfit T-Rex Ultra 2KSh 85,000
    Apple Watch UltraKSh 90,000Add to cart
    Apple Watch Ultra 3KSh 90,000Choose options
    Apple Watch Series 12 46mmKSh 70,000Choose options

    Identity & design

    Identity & design specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    BrandAmazfitAppleAppleApple
    ModelAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 (42mm and 46mm configurations)
    Dimensions51 × 51 × 14.3 mm, excluding heart-rate sensor base49 × 44 × 12 mm49 × 44 × 12 mm42mm: aluminum/titanium 42 × 37 × 9.7 mm; ceramic 43 × 37 × 9.85 mm. 46mm: aluminum/titanium 46 × 40 × 9.7 mm; ceramic 47 × 41 × 9.85 mm.
    Weight89.2 g with strap61.3 g (2.15 oz)Natural titanium: 61.6 g; black titanium: 61.8 g42mm: aluminum GPS 32.2 g, GPS + Cellular 31.5 g, titanium 36.5 g, ceramic Pearl White 41.7 g / Night Blue 42.8 g. 46mm: aluminum GPS 39.5 g, GPS + Cellular 38.6 g, titanium 44.9 g, ceramic Pearl White 51.3 g / Night Blue 52.9 g.
    Build materialsFibre-reinforced polymer case; Grade 5 titanium bezel, buttons and back panelTitanium case; sapphire crystal front; ceramic and sapphire crystal backTitanium case; sapphire crystal front; ceramic and sapphire crystal backAluminum, titanium or ceramic case, depending on configuration
    Wrist size145–215 mm130–210 mm130–210 mm42mm: 130–200 mm; 46mm: 140–245 mm
    Strap / band26 mm silicone strap with classic pin buckleNot specifiedNot specifiedBand supplied; material and size depend on the selected configuration
    Controls / buttonsFour physical buttons; sapphire-glass touchscreenCustomizable Action button; Digital Crown with haptic feedback; side buttonCustomizable Action button; Digital Crown with haptic feedback; side buttonDigital Crown with haptic feedback; side button; band-release button; single tap, double tap and wrist flick gestures
    AnnouncedNot specified2022, September 072025, September 099 September 2026

    Display

    Display specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    Display1.5-inch AMOLEDAlways-On Retina LTPO2 OLEDAlways-On Retina LTPO3 wide-angle OLEDAlways-On Retina LTPO3 wide-angle OLED
    Screen resolution480 × 480 pixels, 322 ppi410 × 502 pixels; 326 ppi; 1,185 mm² display area422 × 514 pixels; 326 ppi; 1,245 mm² display area42mm: 374 × 446 pixels, 970 mm² display area. 46mm: 416 × 496 pixels, 1196 mm² display area. Both: 326 ppi.
    Display protectionSapphire glassFlat sapphire crystalFlat sapphire crystalCeramic Shield 2 on aluminum cases; sapphire front crystal on titanium and ceramic cases
    Display featuresUp to 3,000 nits peak brightness; Always-On Display2000 nits (peak)3000 nits (peak); Wide-angle OLED1 Hz refresh; up to 2,000 nits peak brightness; 1 nit minimum brightness

    Performance & software

    Performance & software specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    Storage64 GB total; 26.7 GB available32 GB64 GB64 GB
    ProcessorNot specifiedApple S8 SiPApple S10; 4-core Neural EngineApple S11 chip; 4-core Neural Engine
    CPUNot specified64-bit dual-core64-bit dual-core64-bit dual-core
    GPUNot specifiedPowerVRPowerVRNot specified
    Operating systemNot specifiedwatchOS 9.0, upgradable to watchOS 26.6watchOS 26, upgradable to watchOS 27watchOS 27

    Connectivity

    Connectivity specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    Wi-Fi2.4 GHz Wi-Fi (802.11 b/g/n)Wi-Fi 802.11 b/g/n, dual-bandWi-Fi 802.11 b/g/n, dual-bandWi‑Fi 4 (802.11n), 2.4 GHz and 5 GHz
    BluetoothBluetooth 5.2 and BLE5.3, A2DP, LE5.3, A2DP, LEBluetooth 5.3
    Positioning / GNSSBuilt-in dual-band positioning; six satellite positioning systems; circularly polarised GPS antennaGPS (L1+L5), GLONASS, GALILEO, BDSGPS (L1+L5), GLONASS, GALILEO, BDS, QZSSPrecision L1 GPS; GLONASS; Galileo; QZSS; BeiDou
    Network / cellularNot specifiedGSM / HSPA / LTEGSM / HSPA / LTE / 5G5G RedCap and LTE on GPS + Cellular models; international roaming supported
    SIM / eSIMNot specifiedeSIMeSIMeSIM on GPS + Cellular models
    NFCNot specifiedSupported; Apple PaySupported; Apple PaySupported; Apple Pay
    Ultra Wideband (UWB)Not specifiedUltra Wideband (UWB) supportUltra Wideband (UWB) support (gen2 chip)Second-generation Ultra Wideband chip
    Satellite featuresNot specifiedNot specifiedEmergency SOS via satelliteNot specified

    Audio & communication

    Audio & communication specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    SpeakerSupportedDual speakers; sirenDual speakers; sirenSpeaker with media playback
    MicrophoneSupportedThree-microphone array with beamforming and wind-noise mitigationThree-microphone array with beamforming and wind-noise mitigationMicrophone with Voice Isolation
    CallingBluetooth calling and call/text notifications through a connected smartphoneCellular and Bluetooth calling; international emergency callingCellular and Bluetooth calling; international emergency callingBluetooth calling; cellular calling on GPS + Cellular models; international emergency calling

    Sensors, health & fitness

    Sensors, health & fitness specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    SensorsBioTracker 6.0 PPG biometric sensor (5 photodiodes + 2 LEDs); accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient-light sensor; temperature sensorBlood oxygen sensor; electrical heart sensor; third-generation optical heart sensor; temperature sensor; depth gauge; water-temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensorElectrical heart sensor, third-generation optical heart sensor, blood oxygen sensor, temperature sensor, depth gauge, water-temperature sensor, compass, always-on altimeter, high-g accelerometer, high-dynamic-range gyroscope and ambient-light sensorHigh-g accelerometer; high dynamic-range gyroscope; compass; always-on altimeter; ambient-light sensor; second-generation electrical heart sensor; always-on optical heart sensor; blood-oxygen sensor; temperature sensor; depth gauge; water-temperature sensor
    Health & wellness features24-hour heart-rate, blood-oxygen, stress and skin-temperature monitoring; one-tap measurement; HybridCharge, BioCharge and LifeLoad energy insights; VO₂ Max and health alertsECG app; Blood Oxygen app where available; heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle trackingBlood Oxygen, ECG, Cycle Tracking, heart-rate notifications, irregular-rhythm notifications, medications, mindfulness and noise features; availability varies by regionHeart rate and HRV; Blood Oxygen; ECG; respiratory rate; wrist temperature; Readiness and Vitals; high/low heart-rate and irregular-rhythm notifications; cycle tracking; hypertension notifications
    Sleep trackingSleep HRV; sleep quality; stages including REM; daytime naps; sleep schedule; breathing quality; sleep score; RestoreIQ recovery insightsSleep duration and sleep stagesSleep duration and sleep stagesSleep duration and stages; sleep score; sleep-apnea notifications
    Sports / workout modes187 sports modes; smart recognition of 25 strength-training movements and 8 sports movements; HYROX race and training modesWorkout app with running, cycling, swimming, multisport and other workout typesNot specifiedRunning; hiking; cycling; pool and open-water swimming; skiing; snowboarding; rowing; paddling; golf; walking; HIIT; yoga; strength; dance; Pilates; Tai Chi; kickboxing; multisport and more
    Training & outdoor featuresZepp Coach; PeakBeats; lactate threshold, Training Stress Balance, Training Load and Training Effect; offline maps; on-watch route planning, automatic rerouting, POI search, turn-by-turn navigation; golf maps; external heart-rate, running-power and cycling sensorsPrecision dual-frequency GPS; compass waypoints and Backtrack; running dynamicsNot specifiedCustom workouts and views; Training Load; heart-rate zones; VO₂ max; Race Route; Pacer; running dynamics; automatic track detection; offline maps, routes, waypoints and Backtrack
    Safety & emergency featuresTwo-colour flashlight with SOS/Boost modes; storm, high-altitude blood-oxygen and route-deviation alertsEmergency SOS; international emergency calling; Fall Detection; Crash DetectionEmergency SOS; international emergency calling; Fall Detection; Crash DetectionEmergency SOS; international emergency calling; Fall Detection; Crash Detection; flashlight; Check In; noise monitoring; emergency waypoints
    Diving / depth featuresFreediving and recreational scuba-diving support to 45 m; EN13319:2000, ISO 6425:2018 and GB/T 18828-2022 diving certifications; Bühlmann ZHL-16C decompression modelRecreational scuba diving to 40 m; depth gauge; water-temperature sensorRecreational scuba diving to 40 m; depth gauge; water-temperature sensorDepth gauge to 6 m; water-temperature sensor

    Battery & durability

    Battery & durability specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    Battery capacity870 mAh ratedNot specifiedNot specifiedNot specified
    Battery lifeTypical use: up to 30 days; heavy use: 15 days; AOD: 10 days; accurate GPS: 50 h; power-saving GPS: 90 h; maximum GPS: 177 h; low-temperature mode with GPS: 40 hUp to 36 hours normal useUp to 42 hours normal use; 72 hours Low Power ModeUp to 24 hours normal use; up to 38 hours Low Power Mode; up to 10 hours outdoor workout
    ChargingMagnetic charging head; DC 5 V 1.5 A maximum inputMagnetic fast charging to USB-C cableMagnetic fast chargingFast-charge capable; up to 80% in about 30 minutes; 15 minutes for up to 12 hours normal use; 5 minutes for up to 10 hours sleep tracking
    Water resistance10 ATM; tested to ISO 22810:2010100 m under ISO 22810:2010100 m under ISO 22810:201050 m swimproof under ISO 22810:2010
    Durability / certificationsMIL-STD-810H-2019; low-temperature operation down to −30 °C; SGS water-resistance test; certified diving standardsIP6X dust resistance; MIL-STD-810H; EN13319IP6X dust resistance; MIL-STD-810H; EN13319IP6X dust resistance

    Compatibility

    Compatibility specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    Phone compatibilityAndroid 7.0 or later; iOS 15.0 or lateriPhone 8 or later; iOS 16 or lateriPhone 11 or later; iOS 26 or lateriPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later
    Companion appZepp AppApple Watch app on iPhoneApple Watch app on iPhoneApple Watch app on iPhone; Health and Fitness apps for associated data
    ColorsBlack MagmaTitaniumNatural, BlackAluminum: Dark Bronze, Light Gold, Black, Space Gray; titanium: Radiant Gold, Natural; ceramic: Pearl White, Night Blue

    Additional specifications

    Additional specifications specifications comparison
    SpecificationAmazfit T-Rex Ultra 2Apple Watch UltraApple Watch Ultra 3Apple Watch Series 12 46mm
    Case materialNot specifiedTitaniumTitaniumNot specified
    Military-grade resistanceNot specifiedMIL-STD-810HMIL-STD-810HNot specified
    FlashlightNot specifiedSupportedSupportedSupported
    Pixels per inchNot specified326 ppi326 ppi326 ppi
    Peak brightnessNot specifiedUp to 2,000 nitsUp to 3,000 nits peak; 1 nit minimumUp to 2,000 nits peak; 1 nit minimum
    Cover / touchscreenNot specifiedSupportedSupportedSupported
    Release statusNot specifiedAvailable. Released 2022, September 23Available. Released 2025, September 19Available. Released 2026, September 18
    Model numbersNot specifiedA2684, A2622, A2859, watch6,18A3281, A3282A3582, A3587
    Card slotNot specifiedNoNoNo
    CameraNot specifiedNoNoNo
    3.5 mm headphone jackNot specifiedNoNoNo
    USBNot specifiedNoNoNo
    RadioNot specifiedNoNoNo
    2G bandsNot specifiedGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
    3G bandsNot specifiedHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, CanadaHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HK; HSDPA 850 / 1700(AWS) / 1900 / 2100 - USA, LATAM, CanadaHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
    4G bandsNot specified1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71
    Network speedNot specifiedHSPA, LTEHSPA, LTE, 5GHSPA, LTE, 5G
    SAR (EU)Not specified0.35 W/kg (head) 0.60 W/kg (body)1.19 W/kg (head)Not specified
    Additional hardware featuresNot specifiedTemperature sensing (0.01˚ accuracy); Depth gauge (±1m accuracy)Temperature sensing (0.01˚ accuracy); Depth gauge (±1m accuracy)Health Sensing System: third‑generation electrical heart sensor, always‑on optical heart sensor, blood oxygen sensor, temperature sensor; Temperature sensing (0.01˚ accuracy); Media playback
    Battery typeNot specifiedRechargeable lithium-ionRechargeable lithium-ionNot specified
    Charging timeNot specifiedNot specifiedAbout 45 minutes to 80%About 30 minutes to 80%; 15 minutes for up to 12 hours normal use; 5 minutes for up to 10 hours sleep tracking
    5G bandsNot specifiedNot specifiedSA/NSA1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 38, 40, 41, 66, 71 SA/NSA
    SAR (US)Not specifiedNot specified1.16 W/kg (head)Not specified
    Display materialNot specifiedNot specifiedNot specifiedLTPO3 wide-angle OLED
    Packing listNot specifiedNot specifiedNot specifiedApple Watch Series 12; band; 1 m magnetic fast-charger to USB-C cable

    Specs

    Amazfit T-Rex Ultra 2 specifications

    Identity & design

    Amazfit T-Rex Ultra 2 — Identity & design
    BrandAmazfit
    ModelAmazfit T-Rex Ultra 2
    Dimensions51 × 51 × 14.3 mm, excluding heart-rate sensor base
    Weight89.2 g with strap
    Build materialsFibre-reinforced polymer case; Grade 5 titanium bezel, buttons and back panel
    Wrist size145–215 mm
    Strap / band26 mm silicone strap with classic pin buckle
    Controls / buttonsFour physical buttons; sapphire-glass touchscreen

    Display

    Amazfit T-Rex Ultra 2 — Display
    Display1.5-inch AMOLED
    Screen resolution480 × 480 pixels, 322 ppi
    Display protectionSapphire glass
    Display featuresUp to 3,000 nits peak brightness; Always-On Display

    Performance & software

    Amazfit T-Rex Ultra 2 — Performance & software
    Storage64 GB total; 26.7 GB available

    Connectivity

    Amazfit T-Rex Ultra 2 — Connectivity
    Wi-Fi2.4 GHz Wi-Fi (802.11 b/g/n)
    BluetoothBluetooth 5.2 and BLE
    Positioning / GNSSBuilt-in dual-band positioning; six satellite positioning systems; circularly polarised GPS antenna

    Audio & communication

    Amazfit T-Rex Ultra 2 — Audio & communication
    SpeakerSupported
    MicrophoneSupported
    CallingBluetooth calling and call/text notifications through a connected smartphone

    Sensors, health & fitness

    Amazfit T-Rex Ultra 2 — Sensors, health & fitness
    SensorsBioTracker 6.0 PPG biometric sensor (5 photodiodes + 2 LEDs); accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient-light sensor; temperature sensor
    Health & wellness features24-hour heart-rate, blood-oxygen, stress and skin-temperature monitoring; one-tap measurement; HybridCharge, BioCharge and LifeLoad energy insights; VO₂ Max and health alerts
    Sleep trackingSleep HRV; sleep quality; stages including REM; daytime naps; sleep schedule; breathing quality; sleep score; RestoreIQ recovery insights
    Sports / workout modes187 sports modes; smart recognition of 25 strength-training movements and 8 sports movements; HYROX race and training modes
    Training & outdoor featuresZepp Coach; PeakBeats; lactate threshold, Training Stress Balance, Training Load and Training Effect; offline maps; on-watch route planning, automatic rerouting, POI search, turn-by-turn navigation; golf maps; external heart-rate, running-power and cycling sensors
    Safety & emergency featuresTwo-colour flashlight with SOS/Boost modes; storm, high-altitude blood-oxygen and route-deviation alerts
    Diving / depth featuresFreediving and recreational scuba-diving support to 45 m; EN13319:2000, ISO 6425:2018 and GB/T 18828-2022 diving certifications; Bühlmann ZHL-16C decompression model

    Battery & durability

    Amazfit T-Rex Ultra 2 — Battery & durability
    Battery capacity870 mAh rated
    Battery lifeTypical use: up to 30 days; heavy use: 15 days; AOD: 10 days; accurate GPS: 50 h; power-saving GPS: 90 h; maximum GPS: 177 h; low-temperature mode with GPS: 40 h
    ChargingMagnetic charging head; DC 5 V 1.5 A maximum input
    Water resistance10 ATM; tested to ISO 22810:2010
    Durability / certificationsMIL-STD-810H-2019; low-temperature operation down to −30 °C; SGS water-resistance test; certified diving standards

    Compatibility

    Amazfit T-Rex Ultra 2 — Compatibility
    Phone compatibilityAndroid 7.0 or later; iOS 15.0 or later
    Companion appZepp App
    ColorsBlack Magma

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