Apple Watch Ultra 3 vs Amazfit T-Rex Ultra 2
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Apple Watch Ultra 2KSh 103,500.00
Apple Watch Series 8 Price range: KSh 50,000.00 through KSh 53,000.00
Apple Watch SE 2 Price range: KSh 28,500.00 through KSh 32,000.00
Apple Watch UltraKSh 90,000.00
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Apple Watch Ultra 3 |  Amazfit T-Rex Ultra 2 |
|---|---|---|
| Price | Price range: KSh 96,000.00 through KSh 115,000.00 | KSh 85,000.00 |
| Display | Always-On Retina display with wide-angle LTPO3 OLED | 1.5-inch AMOLED |
| Battery capacity | — | 870 mAh rated |
| Water resistance | 100 m under ISO 22810:2010 | 10 ATM; tested to ISO 22810:2010 |
| Processor | Apple S10 chip | — |
| Storage | 64 GB | 64 GB total; 26.7 GB available |
| Operating system | watchOS | — |
| Network / cellular | 5G RedCap and LTE on supported model A3281; availability varies by country and carrier | — |
| Positioning / GNSS | Built-in L1 + L5 precision dual-frequency GPS; GPS, GLONASS, Galileo, QZSS and BeiDou | Built-in dual-band positioning; six satellite positioning systems; circularly polarised GPS antenna |
| Health & wellness features | Blood Oxygen, ECG, Cycle Tracking, heart-rate notifications, irregular-rhythm notifications, medications, mindfulness and noise features; availability varies by region | 24-hour heart-rate, blood-oxygen, stress and skin-temperature monitoring; one-tap measurement; HybridCharge, BioCharge and LifeLoad energy insights; VO₂ Max and health alerts |
Full specifications
2 of 4 products
| Specification | Apple Watch Ultra 3 | Amazfit T-Rex Ultra 2 |
|---|---|---|
| Identity & design | ||
| Brand | Apple | Amazfit |
| Model | Apple Watch Ultra 3 | Amazfit T-Rex Ultra 2 |
| Announced | 2025 | — |
| Dimensions | 49 × 44 × 12 mm | 51 × 51 × 14.3 mm, excluding heart-rate sensor base |
| Weight | Natural titanium: 61.6 g Black titanium: 61.8 g | 89.2 g with strap |
| Build materials | Grade 5 titanium case; flat sapphire crystal display | Fibre-reinforced polymer case; Grade 5 titanium bezel, buttons and back panel |
| Wrist size | Fits 130–210 mm wrists | 145–215 mm |
| Strap / band | — | 26 mm silicone strap with classic pin buckle |
| Controls / buttons | Digital Crown with haptic feedback, side button, customizable Action button, double-tap and wrist-flick gestures, touchscreen | Four physical buttons; sapphire-glass touchscreen |
| Display | ||
| Display | Always-On Retina display with wide-angle LTPO3 OLED | 1.5-inch AMOLED |
| Screen resolution | 422 × 514 pixels (326 ppi); 1,245 mm² display area | 480 × 480 pixels, 322 ppi |
| Display protection | Flat sapphire crystal | Sapphire glass |
| Display features | 1 Hz refresh; up to 3,000 nits peak brightness; 1 nit minimum brightness; Night Mode | Up to 3,000 nits peak brightness; Always-On Display |
| Performance & software | ||
| Processor | Apple S10 chip | — |
| CPU | 64-bit dual-core processor; 4-core Neural Engine | — |
| Storage | 64 GB | 64 GB total; 26.7 GB available |
| Operating system | watchOS | — |
| Connectivity | ||
| Network / cellular | 5G RedCap and LTE on supported model A3281; availability varies by country and carrier | — |
| SIM / eSIM | Cellular model uses eSIM | — |
| Wi-Fi | Wi-Fi 4 (802.11n), 2.4 GHz and 5 GHz | 2.4 GHz Wi-Fi (802.11 b/g/n) |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.2 and BLE |
| NFC | Apple Pay and GymKit support | — |
| Positioning / GNSS | Built-in L1 + L5 precision dual-frequency GPS; GPS, GLONASS, Galileo, QZSS and BeiDou | Built-in dual-band positioning; six satellite positioning systems; circularly polarised GPS antenna |
| Ultra Wideband (UWB) | Second-generation Ultra Wideband chip; availability varies by region | — |
| Satellite features | Satellite connectivity for Emergency SOS and Find My; availability varies by region | — |
| Audio & communication | ||
| Speaker | Built-in speaker and siren | Supported |
| Microphone | Three-microphone array with beamforming and wind-noise mitigation | Supported |
| Calling | Bluetooth, Wi-Fi and cellular calling where supported | Bluetooth calling and call/text notifications through a connected smartphone |
| Sensors, health & fitness | ||
| Sensors | Electrical 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 sensor | BioTracker 6.0 PPG biometric sensor (5 photodiodes + 2 LEDs); accelerometer; gyroscope; geomagnetic sensor; barometric altimeter; ambient-light sensor; temperature sensor |
| Health & wellness features | Blood Oxygen, ECG, Cycle Tracking, heart-rate notifications, irregular-rhythm notifications, medications, mindfulness and noise features; availability varies by region | 24-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 tracking | Sleep stages, Sleep Score and sleep-apnoea notifications where available | Sleep HRV; sleep quality; stages including REM; daytime naps; sleep schedule; breathing quality; sleep score; RestoreIQ recovery insights |
| Sports / workout modes | — | 187 sports modes; smart recognition of 25 strength-training movements and 8 sports movements; HYROX race and training modes |
| Training & outdoor features | — | Zepp 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 features | Satellite Emergency SOS and Find My, Emergency SOS, international emergency calling, siren, Crash Detection, Fall Detection, noise monitoring and Backtrack; availability varies by region | Two-colour flashlight with SOS/Boost modes; storm, high-altitude blood-oxygen and route-deviation alerts |
| Diving / depth features | Depth gauge and water-temperature sensor; EN13319 recreational scuba diving to 40 m | Freediving 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 | ||
| Battery capacity | — | 870 mAh rated |
| Battery life | — | Typical 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 |
| Charging | — | Magnetic charging head; DC 5 V 1.5 A maximum input |
| Water resistance | 100 m under ISO 22810:2010 | 10 ATM; tested to ISO 22810:2010 |
| Durability / certifications | IP6X dust resistance; EN13319; tested to MIL-STD-810H | MIL-STD-810H-2019; low-temperature operation down to −30 °C; SGS water-resistance test; certified diving standards |
| Compatibility | ||
| Phone compatibility | Requires a compatible iPhone; feature and regional requirements vary | Android 7.0 or later; iOS 15.0 or later |
| Companion app | Apple Watch app and Apple Health | Zepp App |
| Colors | Natural titanium and Black titanium | Black Magma |
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