Apple Watch Ultra 4 49mm vs Apple Watch Series 12 46mm
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Amazfit GTR 3 ProKSh 20,000.00
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 4 49mm |  Apple Watch Series 12 46mm |
|---|---|---|
| Display | 1.98-inch Always-On Retina LTPO3 wide-angle OLED | Always-On Retina LTPO3 wide-angle OLED |
| Water resistance | 100 m under ISO 22810:2010; suitable for swimming, snorkeling, scuba and high-speed water sports | 50 m swimproof under ISO 22810:2010 |
| Processor | Apple S11 chip; 4-core Neural Engine | Apple S11 chip; 4-core Neural Engine |
| Storage | 64 GB | 64 GB |
| Operating system | watchOS 27 | watchOS 27 |
| Network / cellular | 5G RedCap and LTE cellular connectivity; international roaming supported | 5G RedCap and LTE on GPS + Cellular models; international roaming supported |
| Positioning / GNSS | Precision dual-frequency GPS (L1+L5); Galileo; QZSS; BeiDou | Precision L1 GPS; GLONASS; Galileo; QZSS; BeiDou |
| Health & wellness features | Heart 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 | Heart 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 |
Full specifications
2 of 4 products
| Specification | Apple Watch Ultra 4 49mm | Apple Watch Series 12 46mm |
|---|---|---|
| Identity & design | ||
| Brand | Apple | Apple |
| Model | Apple Watch Ultra 4 49mm | Apple Watch Series 12 46mm |
| Announced | 9 September 2026 | 9 September 2026 |
| Dimensions | 49 × 44 × 12 mm | Aluminum or titanium: 46 × 40 × 9.7 mm; ceramic: 47 × 41 × 9.85 mm |
| Weight | Natural titanium: 63.0 g; black titanium: 63.1 g | Aluminum GPS: 39.5 g; aluminum GPS + Cellular: 38.6 g; titanium: 44.9 g; Pearl White ceramic: 51.3 g; Night Blue ceramic: 52.9 g |
| Build materials | Grade 5 titanium case; ceramic and zirconia back; flat sapphire crystal front | Aluminum, titanium or ceramic case, depending on configuration |
| Wrist size | 130–210 mm | 140–245 mm |
| Controls / buttons | Customizable Action button; Digital Crown with haptic feedback; side button; single tap, double tap and wrist flick gestures | Digital Crown with haptic feedback; side button; band-release button; single tap, double tap and wrist flick gestures |
| Display | ||
| Display | 1.98-inch Always-On Retina LTPO3 wide-angle OLED | Always-On Retina LTPO3 wide-angle OLED |
| Screen resolution | 422 × 514 pixels, 326 ppi; 1,245 mm² display area | 416 × 496 pixels, 326 ppi; 1,196 mm² display area |
| Display protection | Flat sapphire crystal | Ceramic Shield 2 on aluminum cases; sapphire front crystal on titanium and ceramic cases |
| Display features | 1 Hz refresh; up to 3,000 nits peak brightness; 1 nit minimum brightness; Night Mode | 1 Hz refresh; up to 2,000 nits peak brightness; 1 nit minimum brightness |
| Performance & software | ||
| Processor | Apple S11 chip; 4-core Neural Engine | Apple S11 chip; 4-core Neural Engine |
| CPU | 64-bit dual-core | 64-bit dual-core |
| GPU | PowerVR | PowerVR |
| Storage | 64 GB | 64 GB |
| Operating system | watchOS 27 | watchOS 27 |
| Connectivity | ||
| Network / cellular | 5G RedCap and LTE cellular connectivity; international roaming supported | 5G RedCap and LTE on GPS + Cellular models; international roaming supported |
| SIM / eSIM | eSIM | eSIM on GPS + Cellular models |
| Wi-Fi | Wi‑Fi 4 (802.11n), 2.4 GHz and 5 GHz | Wi‑Fi 4 (802.11n), 2.4 GHz and 5 GHz |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.3 |
| NFC | Supported; Apple Pay | Supported; Apple Pay |
| Positioning / GNSS | Precision dual-frequency GPS (L1+L5); Galileo; QZSS; BeiDou | Precision L1 GPS; GLONASS; Galileo; QZSS; BeiDou |
| Ultra Wideband (UWB) | Second-generation Ultra Wideband chip | Second-generation Ultra Wideband chip |
| Satellite features | Satellite communications for Emergency SOS, Messages and Find My | — |
| Audio & communication | ||
| Speaker | Dual speakers with 86 dB siren; media playback | Speaker with media playback |
| Microphone | Three-microphone array with beamforming and wind-noise mitigation | Microphone with Voice Isolation |
| Calling | Cellular and Bluetooth calling; international emergency calling | Bluetooth calling; cellular calling on GPS + Cellular models; international emergency calling |
| Sensors, health & fitness | ||
| Sensors | High-g accelerometer; high dynamic-range gyroscope; compass; barometer/always-on altimeter; ambient-light sensor; third-generation electrical heart sensor; always-on optical heart sensor; blood-oxygen sensor; temperature sensor; depth gauge; water-temperature sensor | High-g accelerometer; high dynamic-range gyroscope; compass; always-on altimeter; ambient-light sensor; third-generation electrical heart sensor; always-on optical heart sensor; blood-oxygen sensor; temperature sensor; depth gauge; water-temperature sensor |
| Health & wellness features | Heart 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 | Heart 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 tracking | Sleep duration and stages; sleep score; sleep-apnea notifications | Sleep duration and stages; sleep score; sleep-apnea notifications |
| Sports / workout modes | Running; hiking; cycling; pool and open-water swimming; skiing; snowboarding; rowing; paddling; golf; walking; HIIT; yoga; strength; dance; Pilates; Tai Chi; kickboxing; multisport and more | Running; 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 features | Custom workouts and views; Training Load and Workout Effort; heart-rate zones; VO₂ max; Race Route; Pacer; running dynamics; automatic track detection; offline maps, routes, waypoints, Backtrack and elevation alerts | Custom 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 features | Emergency SOS; satellite SOS and messaging; international emergency calling; siren; flashlight; Fall Detection; Crash Detection; Check In; noise monitoring; emergency waypoints | Emergency SOS; international emergency calling; Fall Detection; Crash Detection; flashlight; Check In; noise monitoring; emergency waypoints |
| Diving / depth features | Recreational scuba diving to 40 m; automatic dive launch at 1 m; current/maximum depth and duration; GPS entry/exit points; depth gauge and water temperature | Depth gauge to 6 m; water-temperature sensor |
| Battery & durability | ||
| Battery life | Up to 50 hours normal use; up to 84 hours Low Power Mode; up to 18 hours outdoor workout; up to 25 hours Extended Workout; up to 45 hours Max Extended Workout | Up to 24 hours normal use; up to 38 hours Low Power Mode; up to 10 hours outdoor workout |
| Charging | Fast-charge capable; up to 80% in about 45 minutes; 15 minutes for up to 18 hours normal use; 5 minutes for up to 10 hours sleep tracking | Fast-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 resistance | 100 m under ISO 22810:2010; suitable for swimming, snorkeling, scuba and high-speed water sports | 50 m swimproof under ISO 22810:2010 |
| Durability / certifications | IP6X dust resistance under IEC 60529; EN 13319 recreational diving to 40 m; tested to MIL‑STD‑810H | IP6X dust resistance |
| Compatibility | ||
| Phone compatibility | iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later | iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later |
| Colors | Natural titanium; black titanium | Aluminum: Dark Bronze, Light Gold, Black, Space Gray; titanium: Radiant Gold, Natural; ceramic: Pearl White, Night Blue |
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