Apple Watch Series 8 vs Samsung Galaxy Watch Ultra 2025
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 |  Samsung Galaxy Watch Ultra 2025 |
|---|---|---|
| Price | Price range: KSh 50,000.00 through KSh 53,000.00 | KSh 43,500.00 |
| Display | Always-On Retina LTPO OLED 45 mm: 1,143 mm² display area 41 mm: 904 mm² display area | 1.5-inch Super AMOLED |
| Battery capacity | — | 590 mAh |
| Water resistance | Water resistant to 50 m under ISO 22810:2010 | 10 ATM |
| Processor | Apple S8 SiP | Exynos W1000 (3 nm) |
| RAM | — | 2 GB |
| Storage | 32 GB | 64 GB |
| Operating system | watchOS | Wear OS Powered by Samsung; One UI 8 Watch |
| Network / cellular | GPS + Cellular models support LTE and UMTS; availability varies by carrier and region | 3G UMTS and 4G LTE; availability varies by carrier and region |
| Positioning / GNSS | L1 GPS, GLONASS, Galileo, QZSS and BeiDou | Built-in dual-frequency L1 + L5 GPS; GPS, GLONASS, BeiDou and Galileo |
| Health & wellness features | ECG app; Blood Oxygen app where available; high and low heart-rate notifications; irregular rhythm notifications; temperature sensing; cycle tracking | Heart-rate monitoring, ECG, blood pressure, body composition, blood oxygen, skin temperature, Energy Score, Antioxidant Index and Vascular Load; availability varies by market and paired phone |
Full specifications
2 of 4 products
| Specification | Apple Watch Series 8 | Samsung Galaxy Watch Ultra 2025 |
|---|---|---|
| Identity & design | ||
| Brand | Apple | Samsung |
| Model | Apple Watch Series 8 | Galaxy Watch Ultra (2025) |
| Announced | September 2022 | July 2025 |
| Dimensions | 45 mm: 45 × 38 × 10.7 mm 41 mm: 41 × 35 × 10.7 mm | 47.4 × 47.1 × 12.1 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 | 60.5 g |
| Build materials | Aluminium or stainless-steel case, depending on configuration; ceramic and sapphire-crystal back | Grade 4 titanium case; sapphire-crystal display |
| Controls / buttons | Digital Crown with haptic feedback; side button; touchscreen | Touchscreen; Quick button; Home and Back buttons; Double Pinch gesture |
| Display | ||
| Display | Always-On Retina LTPO OLED 45 mm: 1,143 mm² display area 41 mm: 904 mm² display area | 1.5-inch Super AMOLED |
| Screen resolution | 45 mm: 396 × 484 pixels 41 mm: 352 × 430 pixels | 480 × 480 pixels |
| Display protection | Ion-X front glass on aluminium models; sapphire front crystal on stainless-steel models | Sapphire crystal |
| Display features | Always-On display; up to 1,000 nits | Full-colour Always-On Display; up to 3,000 nits |
| Performance & software | ||
| Processor | Apple S8 SiP | Exynos W1000 (3 nm) |
| CPU | 64-bit dual-core processor | 5-core CPU up to 1.6 GHz |
| RAM | — | 2 GB |
| Storage | 32 GB | 64 GB |
| Operating system | watchOS | Wear OS Powered by Samsung; One UI 8 Watch |
| Connectivity | ||
| Network / cellular | GPS + Cellular models support LTE and UMTS; availability varies by carrier and region | 3G UMTS and 4G LTE; availability varies by carrier and region |
| SIM / eSIM | eSIM on GPS + Cellular models; carrier plan required | eSIM |
| Wi-Fi | 802.11b/g/n, 2.4 GHz and 5 GHz | 802.11a/b/g/n, 2.4 GHz and 5 GHz |
| Bluetooth | Bluetooth 5.3 | Bluetooth 5.3 |
| NFC | NFC with Apple Pay support | Supported |
| Positioning / GNSS | L1 GPS, GLONASS, Galileo, QZSS and BeiDou | Built-in dual-frequency L1 + L5 GPS; GPS, GLONASS, BeiDou and Galileo |
| Ultra Wideband (UWB) | Apple U1 chip | — |
| Audio & communication | ||
| Speaker | Speaker | Speaker and siren |
| Microphone | Microphone | Microphone |
| Calling | Bluetooth calling through a paired iPhone; cellular calling on GPS + Cellular models with an eligible plan | Standalone LTE calling and Bluetooth calling; carrier support required |
| 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 | Samsung BioActive Sensor (optical heart-rate, electrical heart and bioelectrical impedance analysis), infrared temperature sensor, accelerometer, barometer, gyroscope, geomagnetic sensor and 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 | Heart-rate monitoring, ECG, blood pressure, body composition, blood oxygen, skin temperature, Energy Score, Antioxidant Index and Vascular Load; availability varies by market and paired phone |
| Sleep tracking | Sleep app with sleep stages | Sleep tracking, Bedtime Guidance, sleep coaching and sleep-apnoea features where available |
| Sports / workout modes | Workout app with multiple workout types and automatic workout detection | Multiple workout modes including multisport and automatic workout detection |
| Training & outdoor features | Pace and heart-rate zones; compass waypoints and backtrack | Dual-frequency GPS; GPX routes; Track Back; Running Coach; personalised heart-rate zones; Functional Threshold Power |
| Safety & emergency features | Emergency SOS; international emergency calling; fall detection; crash detection | Fall detection, SOS and siren features when configured |
| Battery & durability | ||
| Battery capacity | — | 590 mAh |
| Battery life | Up to 18 hours | Up to 80 hours with Always-On Display off; up to 60 hours with Always-On Display on; up to 100 hours in Power Saving Mode |
| Charging | USB-C magnetic fast-charging cable | WPC-based wireless charging |
| Water resistance | Water resistant to 50 m under ISO 22810:2010 | 10 ATM |
| Durability / certifications | IP6X dust resistant | IP68; MIL-STD-810H |
| Compatibility | ||
| Phone compatibility | Requires iPhone 8 or later with iOS 16 or later at launch | Android 12 or later with more than 1.5 GB RAM and Google Mobile Services; compatibility varies by market and device |
| Companion app | Apple Watch app and Apple Health | Galaxy Wearable and Samsung Health |
| Colors | Aluminium: Midnight, Starlight, Silver, (PRODUCT)RED Stainless steel: Graphite, Silver, Gold | Titanium Blue; Titanium Gray; Titanium White; Titanium Silver |
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