Apple Watch Series 8 vs Apple Watch Ultra 3
Compare specifications, current prices and availability. Choose up to four products from the same family.
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Samsung Galaxy Watch UltraKSh 45,000.00
WHOOP Peak 5.0 SensorKSh 45,000.00
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 Series 8 |  Apple Watch Ultra 3 |
|---|---|---|
| Price | Price range: KSh 50,000.00 through KSh 53,000.00 | Price range: KSh 96,000.00 through KSh 115,000.00 |
| Display | Always-On Retina LTPO OLED 45 mm: 1,143 mm² display area 41 mm: 904 mm² display area | Always-On Retina display with wide-angle LTPO3 OLED |
| Water resistance | Water resistant to 50 m under ISO 22810:2010 | 100 m under ISO 22810:2010 |
| Processor | Apple S8 SiP | Apple S10 chip |
| Storage | 32 GB | 64 GB |
| Operating system | watchOS | watchOS |
| Network / cellular | GPS + Cellular models support LTE and UMTS; availability varies by carrier and region | 5G RedCap and LTE on supported model A3281; availability varies by country and carrier |
| Positioning / GNSS | L1 GPS, GLONASS, Galileo, QZSS and BeiDou | Built-in L1 + L5 precision dual-frequency GPS; GPS, GLONASS, Galileo, QZSS and BeiDou |
| Health & wellness features | ECG app; Blood Oxygen app where available; high and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking | Blood Oxygen, ECG, Cycle Tracking, heart-rate notifications, irregular-rhythm notifications, medications, mindfulness and noise features; availability varies by region |
Full specifications
2 of 4 products
| Specification | Apple Watch Series 8 | Apple Watch Ultra 3 |
|---|---|---|
| Identity & design | ||
| Brand | Apple | Apple |
| Model | Apple Watch Series 8 | Apple Watch Ultra 3 |
| Announced | September 2022 | 2025 |
| Dimensions | 45 mm: 45 × 38 × 10.7 mm 41 mm: 41 × 35 × 10.7 mm | 49 × 44 × 12 mm |
| Weight | 45 mm: 38.8–51.5 g, depending on case and connectivity 41 mm: 31.9–42.3 g, depending on case and connectivity | Natural titanium: 61.6 g Black titanium: 61.8 g |
| Build materials | Aluminium or stainless-steel case, depending on configuration; ceramic and sapphire-crystal back | Grade 5 titanium case; flat sapphire crystal display |
| Wrist size | — | Fits 130–210 mm wrists |
| Controls / buttons | Digital Crown with haptic feedback; side button; touchscreen | Digital Crown with haptic feedback, side button, customizable Action button, double-tap and wrist-flick gestures, touchscreen |
| Display | ||
| Display | Always-On Retina LTPO OLED 45 mm: 1,143 mm² display area 41 mm: 904 mm² display area | Always-On Retina display with wide-angle LTPO3 OLED |
| Screen resolution | 45 mm: 396 × 484 pixels 41 mm: 352 × 430 pixels | 422 × 514 pixels (326 ppi); 1,245 mm² display area |
| Display protection | Ion-X front glass on aluminium models; sapphire front crystal on stainless-steel models | Flat sapphire crystal |
| Display features | Always-On display; up to 1,000 nits | 1 Hz refresh; up to 3,000 nits peak brightness; 1 nit minimum brightness; Night Mode |
| Performance & software | ||
| Processor | Apple S8 SiP | Apple S10 chip |
| CPU | 64-bit dual-core processor | 64-bit dual-core processor; 4-core Neural Engine |
| Storage | 32 GB | 64 GB |
| Operating system | watchOS | watchOS |
| Connectivity | ||
| Network / cellular | GPS + Cellular models support LTE and UMTS; availability varies by carrier and region | 5G RedCap and LTE on supported model A3281; availability varies by country and carrier |
| SIM / eSIM | eSIM on GPS + Cellular models; carrier plan required | Cellular model uses eSIM |
| Wi-Fi | 802.11b/g/n, 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 | NFC with Apple Pay support | Apple Pay and GymKit support |
| Positioning / GNSS | L1 GPS, GLONASS, Galileo, QZSS and BeiDou | Built-in L1 + L5 precision dual-frequency GPS; GPS, GLONASS, Galileo, QZSS and BeiDou |
| Ultra Wideband (UWB) | Apple U1 chip | 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 | Speaker | Built-in speaker and siren |
| Microphone | Microphone | Three-microphone array with beamforming and wind-noise mitigation |
| Calling | Bluetooth calling through a paired iPhone; cellular calling on GPS + Cellular models with an eligible plan | Bluetooth, Wi-Fi and cellular calling where supported |
| Sensors, health & fitness | ||
| Sensors | Blood oxygen sensor; electrical heart sensor; third-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high-dynamic-range gyroscope; ambient light sensor | 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 |
| Health & wellness features | ECG app; Blood Oxygen app where available; high and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking | Blood Oxygen, ECG, Cycle Tracking, heart-rate notifications, irregular-rhythm notifications, medications, mindfulness and noise features; availability varies by region |
| Sleep tracking | Sleep app with sleep stages | Sleep stages, Sleep Score and sleep-apnoea notifications where available |
| Sports / workout modes | Workout app with multiple workout types and automatic workout detection | — |
| Training & outdoor features | Pace and heart-rate zones; compass waypoints and backtrack | — |
| Safety & emergency features | Emergency SOS; international emergency calling; fall detection; crash detection | Satellite Emergency SOS and Find My, Emergency SOS, international emergency calling, siren, Crash Detection, Fall Detection, noise monitoring and Backtrack; availability varies by region |
| Diving / depth features | — | Depth gauge and water-temperature sensor; EN13319 recreational scuba diving to 40 m |
| Battery & durability | ||
| Battery life | Up to 18 hours | — |
| Charging | USB-C magnetic fast-charging cable | — |
| Water resistance | Water resistant to 50 m under ISO 22810:2010 | 100 m under ISO 22810:2010 |
| Durability / certifications | IP6X dust resistant | IP6X dust resistance; EN13319; tested to MIL-STD-810H |
| Compatibility | ||
| Phone compatibility | Requires iPhone 8 or later with iOS 16 or later at launch | Requires a compatible iPhone; feature and regional requirements vary |
| Companion app | Apple Watch app and Apple Health | Apple Watch app and Apple Health |
| Colors | Aluminium: Midnight, Starlight, Silver, (PRODUCT)RED Stainless steel: Graphite, Silver, Gold | Natural titanium and Black titanium |
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