Apple Watch Series 8 vs Apple Watch Series 3 Aluminum

Phones Images
Apple Watch Series 8 Apple Watch Series 3 Aluminum
PHONES
Phone Names Apple Watch Series 8 Apple Watch Series 3 Aluminum
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International, China, HKHSDPA 850 / 900 / 2100 / 800 - Europe, Australia (A1891)
4G bands1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International, China, HK1, 3, 5, 7, 8, 18, 19, 20, 26 - Europe, Australia (A1891)
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada1, 3, 39, 40, 41 - China (A1892)
Launch
Announced2022, September 072017, September. Released 2017, September
StatusAvailable. Released 2022, September 16Discontinued
Body
BuildSapphire crystal front, ceramic/sapphire crystal back, stainless steel frameGlass front, ceramic back, aluminum frame
Dimensions45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)42.5 x 36.4 x 11.4 mm (1.67 x 1.43 x 0.45 in)
SIMeSIMeSIM
Weight42.3 g (41mm), 51.5 g (45mm) (1.48 oz)34.9 g (1.23 oz)
 IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models)50m water resistant
Display
ProtectionSapphire crystal glassIon-X strengthened glass
Resolution484 x 396 pixels (~326 ppi density)390 x 312 pixels (~303 ppi density)
Size1.9 inches1.65 inches
TypeRetina LTPO OLED, 1000 nits (peak)Retina OLED, 1000 nits (peak)
 Always-on display3D Touch display
Platform
CPUDual-coreDual-core
ChipsetApple S8Apple S3
GPUPowerVRPowerVR
OSwatchOS 9.0, upgradable to watchOS 26.1watchOS 4.0, upgradable to watchOS 8.7
Memory
Card slotNoNo
Internal32GB 1GB RAM8GB 768MB RAM, 16GB 768MB RAM
 eMMC 5.1-
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth5.3, A2DP, LE4.2, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, QZSS, BDSGPS, GLONASS
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/n, dual-bandWi-Fi 802.11 b/g/n
Features
SensorsAccelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max, temperature (body)Accelerometer, gyro, heart rate, barometer
 Temperature sensing (0.01˚ accuracy) Natural language commands and dictation (talking mode) Ultra Wideband (UWB) supportNatural language commands and dictation (talking mode)
Battery
ChargingWireless, 0-80% in 45 minWireless
TypeLi-Ion 308 mAhLi-Ion 341 mAh (1.34 Wh), non-removable
Misc
ColorsGraphite, Silver, GoldSilver, Gold, Space Gray
ModelsA2773, A2775, A2772, A2774, A2857, A2858, watch6,16, watch6,17A1860, A1861, A1889, A1891, A1890, A1892, A1858, A1859
PriceAbout 330 EURAbout 480 EUR
SAR0.31 W/kg (head)     0.55 W/kg (body)0.52 W/kg (head)     0.34 W/kg (body)
SAR EU0.31 W/kg (head)     0.55 W/kg (body)-
Camera
 NoNo