Amazfit T-Rex 3 Pro vs Samsung Galaxy Watch Ultra 2 47mm
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Apple Watch UltraKSh 90,000.00
Apple Watch Ultra 2KSh 103,500.00
Apple Watch Series 9 Price range: KSh 45,000.00 through KSh 49,500.00
Apple Watch Series 8 Price range: KSh 50,000.00 through KSh 53,000.00
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Amazfit T-Rex 3 Pro |  Samsung Galaxy Watch Ultra 2 47mm |
|---|---|---|
| Price | Price range: KSh 55,000.00 through KSh 65,000.00 | KSh 72,000.00 |
| Display | AMOLED 48 mm: 1.5-inch 44 mm: 1.32-inch | 1.52-inch Super AMOLED Always On Display |
| Battery capacity | 48 mm: 700 mAh rated 44 mm: 500 mAh rated | 800 mAh silicon-carbon lithium-ion |
| Water resistance | 10 ATM | 10 ATM |
| Processor | — | Snapdragon SW6100 Wear Elite (3 nm) |
| RAM | — | 2 GB |
| Storage | — | 64 GB |
| Operating system | Zepp OS 5 | Wear OS 7 with One UI Watch 9 |
| Network / cellular | — | GSM, HSPA and LTE |
| Positioning / GNSS | Built-in six-satellite positioning with circularly polarized GPS antenna | Dual-band GPS (L1+L5); GLONASS; Galileo; BeiDou |
| Health & wellness features | Heart rate, blood oxygen, stress, HRV, readiness and temperature insights; wellness measurements are not intended for medical diagnosis | Heart rate; ECG; blood pressure; blood oxygen; body composition; body temperature; Energy Score; Vitals |
Full specifications
2 of 4 products
| Specification | Amazfit T-Rex 3 Pro | Samsung Galaxy Watch Ultra 2 47mm |
|---|---|---|
| Identity & design | ||
| Brand | Amazfit | Samsung |
| Model | T-Rex 3 Pro | Samsung Galaxy Watch Ultra2 47mm |
| Announced | — | 22 July 2026 |
| Dimensions | 48 mm: 48 × 48 × 14 mm 44 mm: 44.8 × 44.8 × 13.2 mm Heart-rate sensor base excluded | 47.4 × 47.1 × 10.7 mm |
| Weight | 48 mm: 52 g 44 mm: 46.8 g Without strap | 61.5 g |
| Build materials | Fiber-reinforced polymer case with Grade 5 titanium bezel and buttons; sapphire-glass touchscreen | Grade 4 titanium frame; sapphire crystal front; ceramic and sapphire-crystal back |
| Wrist size | 48 mm: 145–210 mm 44 mm: 140–205 mm | — |
| Strap / band | Silicone quick-release strap 48 mm: 22 mm 44 mm: 20 mm | Marine Band |
| Controls / buttons | Four physical buttons and touchscreen | Touchscreen; Home and Back buttons; customizable Quick Button |
| Display | ||
| Display | AMOLED 48 mm: 1.5-inch 44 mm: 1.32-inch | 1.52-inch Super AMOLED Always On Display |
| Screen resolution | 48 mm: 480 × 480 pixels, 322 ppi 44 mm: 466 × 466 pixels, 353 ppi | 498 × 498 pixels, 327 ppi |
| Display protection | Sapphire glass | Sapphire crystal |
| Display features | Up to 3,000 nits peak brightness; always-on display | Full-color Always On Display; up to 5,000 nits peak brightness |
| Performance & software | ||
| Processor | — | Snapdragon SW6100 Wear Elite (3 nm) |
| CPU | — | Penta-core, 1 × 2.1 GHz + 4 × 1.95 GHz |
| RAM | — | 2 GB |
| Storage | — | 64 GB |
| Operating system | Zepp OS 5 | Wear OS 7 with One UI Watch 9 |
| Connectivity | ||
| Network / cellular | — | GSM, HSPA and LTE |
| SIM / eSIM | — | eSIM |
| Wi-Fi | 2.4 GHz Wi-Fi | Wi‑Fi 802.11 a/b/g/n/ac, dual-band |
| Bluetooth | Bluetooth 5.2 BLE | Bluetooth 6.0 |
| NFC | — | Supported |
| Positioning / GNSS | Built-in six-satellite positioning with circularly polarized GPS antenna | Dual-band GPS (L1+L5); GLONASS; Galileo; BeiDou |
| Audio & communication | ||
| Speaker | Built-in speaker | Supported; 86 dB emergency siren audible up to 180 m |
| Microphone | Built-in microphone | Supported |
| Calling | Bluetooth calling when paired with a compatible phone | Standalone cellular and Bluetooth calling; emergency calling |
| Sensors, health & fitness | ||
| Sensors | BioTracker 6.0 PPG biometric sensor (5PD + 2LED), accelerometer, gyroscope, geomagnetic sensor, barometric altimeter, ambient-light sensor and temperature sensor | Accelerometer; barometer; bioelectrical impedance analysis sensor; electrical heart sensor; gyroscope; geomagnetic sensor; ambient-light sensor; optical heart-rate sensor; temperature sensor |
| Health & wellness features | Heart rate, blood oxygen, stress, HRV, readiness and temperature insights; wellness measurements are not intended for medical diagnosis | Heart rate; ECG; blood pressure; blood oxygen; body composition; body temperature; Energy Score; Vitals |
| Sleep tracking | Sleep stages, naps, sleep score, breathing quality and recovery insights | Sleep patterns and quality; sleep coaching; sleep-apnea risk detection |
| Sports / workout modes | 187 sports modes with smart recognition for strength-training and sports movements | Running; trail running; cycling; swimming; multisport and other automatic/manual workouts |
| Training & outdoor features | Offline base, contour and ski maps; turn-by-turn navigation, POI search, route planning, round-trip routing, auto-rerouting, Zepp Coach and PeakBeats training metrics | Dual-band GNSS navigation; trail-running guidance; direct Bluetooth cycling-sensor support for cadence, power and speed |
| Safety & emergency features | SOS tools and downloadable maps; requires appropriate setup and phone connectivity for supported communications | 86 dB safety siren; automatic Fall Detection; Emergency SOS by five Home-button presses |
| Diving / depth features | Freediving and scuba modes rated to 45 m; follow the manufacturer’s diving limits and safety guidance | Recreational diving to 40 m; EN 13319 certified diving instrument; water-temperature tracking |
| Battery & durability | ||
| Battery capacity | 48 mm: 700 mAh rated 44 mm: 500 mAh rated | 800 mAh silicon-carbon lithium-ion |
| Battery life | 48 mm: up to 25 days typical, 10 days heavy, 38 hours accurate GPS 44 mm: up to 17 days typical, 8 days heavy, 26 hours accurate GPS | Up to 80 hours with Always On Display off; up to 60 hours with Always On Display on |
| Charging | Magnetic charging base | Fast wireless charging, 10 W; up to 40% in about 30 minutes |
| Water resistance | 10 ATM | 10 ATM |
| Durability / certifications | Rugged outdoor construction with Grade 5 titanium controls and sapphire glass | IP69K; MIL‑STD‑810H compliant; EN 13319 diving certification; ECG certified |
| Compatibility | ||
| Phone compatibility | Android 7.0 or later; iOS 15.0 or later | — |
| Companion app | Zepp app | Samsung Health |
| Colors | Black Gold (44mm), Black Gold (48mm); Gold/Grey, Tactical Black | Titanium Silver; Titanium Gray |
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