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Apple Watch Series 10 vs Apple Watch Series 8

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

AppleWatch Series 10AppleWatch Series 8
Overview
ReleasedSeptember 2024September 2022
Display
Case sizes42 mm or 46 mm41 mm or 45 mm
PanelLTPO OLEDLTPO OLED
Peak brightness2,000 nits1,000 nits
Always-on displayYesYes
Display detailAlways-On Retina LTPO3 display with wide-angle OLED, up to 40% brighter when viewed at an angle; 374 x 446 pixels (42mm) or 416 x 496 pixels (46mm) at 326 ppi; 970 or 1,196 sq mm display area; 1 nit minimum brightness41mm 352 x 430 pixels, 904 sq mm; 45mm 396 x 484 pixels, 1,143 sq mm
Screen protectionIon-X front glass (aluminium cases); sapphire front crystal (titanium cases)Ion-X glass on aluminium; sapphire crystal on stainless steel and Hermès
Health and fitness
ECGYesYes
Blood oxygenYesYes
Skin temperatureYesYes
Sleep apnoea alertsYesNo
High blood pressure alertsYesNo
Body compositionNoNo
Fall detectionYesYes
Crash detectionYesYes
GPSSingle-bandSingle-band
Water resistance50 m50 m
SensorsElectrical heart sensor; third-generation optical heart sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer (up to 256 g); high dynamic range gyroscope; ambient light sensor; depth gauge to 6 m; water temperature sensorBlood oxygen, electrical and third-generation optical heart sensors; two temperature sensors; compass, always-on altimeter, high-g accelerometer up to 256 g-forces, high dynamic range gyroscope and ambient light sensor
Health featuresVitals app (heart rate, respiratory rate, wrist temperature, blood oxygen and sleep duration); irregular rhythm notifications; high and low heart rate notifications; low cardio fitness notifications; sleep stages and sleep score; Cycle Tracking with retrospective ovulation estimates; Medications; Mindfulness with state of mind tracking; NoiseECG and Blood Oxygen apps; overnight wrist temperature changes and retrospective ovulation estimates; sleep stages, AFib History and Medications in watchOS 9; oxygen readings are for general wellness rather than medical use
Fitness featuresCustom workouts; Training Load; Heart Rate Zones; Race Route; Pacer; stride length, ground contact time and vertical oscillation; automatic track detection; multisport workouts; offline maps with custom route creation; pool and open-water swimming with SWOLF and automatic stroke detection; snorkelling to 6 m with the Depth app; cycling power zones and cadence with Bluetooth accessories; GymKitL1 GPS, GLONASS, Galileo, QZSS and BeiDou; GymKit; running form metrics, heart-rate zones, custom workouts and Multisport; Compass Waypoints and Backtrack
Safety featuresEmergency SOS; international emergency calling; Check In; Backtrack; torch; noise monitoringFall Detection, Crash Detection and Emergency SOS; international emergency calling on cellular versions in supported regions
Battery and connections
Battery life (maker's claim)Up to 18 hoursUp to 18 hours
In low-power modeUp to 36 hours–
Mobile data optionYesYes
Works withiPhoneiPhone
ChipS10S8
Storage64 GB32 GB
Battery life detailAll-day figure tested over 18 hours with 300 time checks, 90 notifications, 15 minutes of app use and a 60-minute workout with music (GPS + Cellular model with 4 hours on LTE); built-in rechargeable lithium-ion batteryRechargeable lithium-ion; up to 36 hours with iPhone present in Low Power Mode, which limits features including the always-on display and heart notifications
ChargingFast charging to 80% in about 30 minutes; 15 minutes for up to 8 hours of normal use; 8 minutes for up to 8 hours of sleep trackingMagnetic Fast Charger to USB-C Cable; USB-C power adapter sold separately
ConnectivityL1 GPS, GNSS, Galileo and BeiDou; 4G LTE and UMTS (GPS + Cellular models); Wi-Fi 4 (802.11n); Bluetooth 5.3; second-generation Ultra Wideband chip; Apple PayW3 wireless chip and U1 Ultra Wideband; Wi-Fi 802.11b/g/n at 2.4GHz and 5GHz; Bluetooth 5.3; cellular versions add 4G LTE and UMTS; international roaming introduced with watchOS 9; iPhone 8 or later with iOS 16 at launch
Design
Weight (lightest version)29.3 g31.9 g
SoftwarewatchOSwatchOS
Case materials100% recycled aluminium case, or polished grade 5 titanium case (95% recycled titanium); metal and sapphire crystal back; water resistant to 50 m (ISO 22810:2010), for swimming and snorkelling; IP6X dust resistantAluminium or stainless steel; ceramic and sapphire crystal back; IP6X dust resistance and 50 m water resistance for shallow-water swimming
Size42mm is 42 x 36 x 9.7 mm, 30 g (aluminium, GPS), 29.3 g (aluminium, GPS + Cellular) or 34.4 g (titanium); 46mm is 46 x 39 x 9.7 mm, 36.4 g (aluminium, GPS), 35.3 g (aluminium, GPS + Cellular) or 41.7 g (titanium); lightest is the 42mm aluminium GPS + Cellular41mm 41 x 35 x 10.7 mm, aluminium GPS 31.9 g, aluminium cellular 32.2 g or steel 42.3 g; 45mm 45 x 38 x 10.7 mm, aluminium GPS 38.8 g, aluminium cellular 39.1 g or steel 51.5 g; case weights exclude bands
BandsFits 130–200 mm wrists (42mm) or 140–245 mm wrists (46mm)Apple Watch Studio case and band combinations; Nike bands and faces available across watchOS 9 watches; Hermès H Diagonal and Gourmette Metal bands and Lucky Horse face
ColoursAluminium in Jet Black, Rose Gold and Silver; titanium in Natural, Gold and SlateMidnight, Starlight, Silver or (PRODUCT)RED aluminium; Silver, Graphite (PVD) or Gold (PVD) steel; Hermès Silver or Space Black (DLC) steel
In the boxApple Watch Series 10, strap, Apple Watch Magnetic Fast Charger to USB-C Cable (1 m)Watch, band or loop and 1 m Magnetic Fast Charger to USB-C Cable

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