Apple Watch SE 3 vs Apple Watch Series 12 46mm
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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
Apple Watch Ultra 2KSh 103,500.00
At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Apple Watch SE 3 |  Apple Watch Series 12 46mm |
|---|---|---|
| Price | Price range: KSh 35,500.00 through KSh 39,500.00 | — |
| Display | Always-On Retina LTPO OLED 44 mm: 977 mm² display area 40 mm: 759 mm² display area | Always-On Retina LTPO3 wide-angle OLED |
| Water resistance | Water resistant to 50 m under ISO 22810:2010 | 50 m swimproof under ISO 22810:2010 |
| Processor | Apple S10 SiP | Apple S11 chip; 4-core Neural Engine |
| Storage | 64 GB | 64 GB |
| Operating system | watchOS | watchOS 27 |
| Network / cellular | GPS + Cellular models support LTE and UMTS; availability varies by carrier and region | 5G RedCap and LTE on GPS + Cellular models; international roaming supported |
| Positioning / GNSS | L1 GPS, GLONASS, Galileo and QZSS | Precision L1 GPS; GLONASS; Galileo; QZSS; BeiDou |
| Health & wellness features | High and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications apps | 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 SE 3 | Apple Watch Series 12 46mm |
|---|---|---|
| Identity & design | ||
| Brand | Apple | Apple |
| Model | Apple Watch SE 3 | Apple Watch Series 12 46mm |
| Announced | September 2025 | 9 September 2026 |
| Dimensions | 44 mm: 44 × 38 × 10.7 mm 40 mm: 40 × 34 × 10.7 mm | Aluminum or titanium: 46 × 40 × 9.7 mm; ceramic: 47 × 41 × 9.85 mm |
| Weight | 44 mm: 32.9 g (GPS), 33.0 g (GPS + Cellular) 40 mm: 26.3 g (GPS), 26.4 g (GPS + Cellular) | 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 | Aluminium case | Aluminum, titanium or ceramic case, depending on configuration |
| Wrist size | 44 mm: 140–245 mm wrist 40 mm: 130–200 mm wrist | 140–245 mm |
| Controls / buttons | Digital Crown with haptic feedback; side button; touchscreen | Digital Crown with haptic feedback; side button; band-release button; single tap, double tap and wrist flick gestures |
| Display | ||
| Display | Always-On Retina LTPO OLED 44 mm: 977 mm² display area 40 mm: 759 mm² display area | Always-On Retina LTPO3 wide-angle OLED |
| Screen resolution | 44 mm: 368 × 448 pixels 40 mm: 324 × 394 pixels | 416 × 496 pixels, 326 ppi; 1,196 mm² display area |
| Display protection | Ion-X front glass | Ceramic Shield 2 on aluminum cases; sapphire front crystal on titanium and ceramic cases |
| Display features | Always-On display; up to 1,000 nits; 326 ppi | 1 Hz refresh; up to 2,000 nits peak brightness; 1 nit minimum brightness |
| Performance & software | ||
| Processor | Apple S10 SiP | Apple S11 chip; 4-core Neural Engine |
| CPU | 64-bit dual-core processor; 4-core Neural Engine | 64-bit dual-core |
| GPU | — | PowerVR |
| Storage | 64 GB | 64 GB |
| Operating system | watchOS | watchOS 27 |
| Connectivity | ||
| Network / cellular | GPS + Cellular models support LTE and UMTS; availability varies by carrier and region | 5G RedCap and LTE on GPS + Cellular models; international roaming supported |
| SIM / eSIM | eSIM on GPS + Cellular models; carrier plan required | eSIM on GPS + Cellular models |
| Wi-Fi | Wi‑Fi 4 (802.11n), 2.4 GHz | Wi‑Fi 4 (802.11n), 2.4 GHz and 5 GHz |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.3 |
| NFC | NFC with Apple Pay support | Supported; Apple Pay |
| Positioning / GNSS | L1 GPS, GLONASS, Galileo and QZSS | Precision L1 GPS; GLONASS; Galileo; QZSS; BeiDou |
| Ultra Wideband (UWB) | — | Second-generation Ultra Wideband chip |
| Audio & communication | ||
| Speaker | Speaker | Speaker with media playback |
| Microphone | Microphone | Microphone with Voice Isolation |
| Calling | Bluetooth calling through a paired iPhone; cellular calling on GPS + Cellular models with an eligible plan | Bluetooth calling; cellular calling on GPS + Cellular models; international emergency calling |
| Sensors, health & fitness | ||
| Sensors | Second-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light 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 | High and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking; mindfulness and medications apps | 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 tracking with sleep stages and sleep score | Sleep duration and stages; sleep score; sleep-apnea notifications |
| Sports / workout modes | Workout app with multiple workout types and automatic workout detection | 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 | Pace and heart-rate zones; compass waypoints and backtrack | 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; international emergency calling; fall detection; crash detection; check in | Emergency SOS; international emergency calling; Fall Detection; Crash Detection; flashlight; Check In; noise monitoring; emergency waypoints |
| Diving / depth features | — | Depth gauge to 6 m; water-temperature sensor |
| Battery & durability | ||
| Battery life | Up to 18 hours normal use; up to 32 hours in Low Power Mode | Up to 24 hours normal use; up to 38 hours Low Power Mode; up to 10 hours outdoor workout |
| Charging | Fast charging | 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 | Water resistant to 50 m under ISO 22810:2010 | 50 m swimproof under ISO 22810:2010 |
| Durability / certifications | — | IP6X dust resistance |
| Compatibility | ||
| Phone compatibility | Requires iPhone 11 or later with iOS 26 or later | iPhone 11 or later, including iPhone SE (2nd generation or later), with iOS 27 or later |
| Companion app | Apple Watch app and Apple Health | — |
| Colors | Starlight; Midnight | Aluminum: Dark Bronze, Light Gold, Black, Space Gray; titanium: Radiant Gold, Natural; ceramic: Pearl White, Night Blue |
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