Apple Watch Series 7 vs Apple Watch Series 7 Aluminum

Phones Images
PHONES
Phone Names Apple Watch Series 7 Apple Watch Series 7 Aluminum
Network
2G bandsGSM 850 / 900 / 1800 / 1900GSM 850 / 900 / 1800 / 1900
3G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - InternationalHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - International
4G bands1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International1, 2, 3, 4, 5, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - International
SpeedHSPA, LTEHSPA, LTE
TechnologyGSM / HSPA / LTEGSM / HSPA / LTE
 1, 2, 3, 4, 5, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada1, 2, 3, 4, 5, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada
Launch
Announced2021, September 142021, September 14
StatusAvailable. Released 2021, October 15Available. Released 2021, October 15
Body
BuildSapphire crystal front, ceramic/sapphire crystal back, stainless steel frameGlass front, ceramic/sapphire crystal back, aluminum frame
Dimensions45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)
SIMeSIMeSIM
Weight42.3 g (41mm), 51.5 g (45mm) (1.48 oz)32 g (41mm), 38.8 g (45mm) (1.13 oz)
 IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models)IP6X certified 50m water resistant ECG certified (region dependent SW application; HW available on all models)
Display
ProtectionSapphire crystal glassIon-X strengthened glass
Resolution484 x 396 pixels (~326 ppi density)484 x 396 pixels (~326 ppi density)
Size1.9 inches1.9 inches
TypeRetina LTPO OLED, 1000 nits (peak)Retina LTPO OLED, 1000 nits (peak)
 Always-on displayAlways-on display
Platform
CPUDual-coreDual-core
ChipsetApple S7Apple S7
GPUPowerVRPowerVR
OSwatchOS 8.0, upgradable to watchOS 26.1watchOS 8.0, upgradable to watchOS 26.1
Memory
Card slotNoNo
Internal32GB 1GB RAM32GB 1GB RAM
 -eMMC 5.1
Sound
3.5mm jack NoNo
35mm jackNoNo
Loudspeaker YesYes
Comms
Bluetooth5.0, A2DP, LE5.0, A2DP, LE
NFCYesYes
PositioningGPS, GLONASS, GALILEO, QZSS, BDSGPS, GLONASS, GALILEO, QZSS, BDS
RadioNoNo
USBNoNo
WLANWi-Fi 802.11 b/g/n, dual-bandWi-Fi 802.11 b/g/n, dual-band
Features
SensorsAccelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2maxAccelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max
 Natural language commands and dictation (talking mode) Ultra Wideband (UWB) supportNatural language commands and dictation (talking mode) Ultra Wideband (UWB) support
Battery
ChargingWireless, 0-80% in 45 minWireless, 0-80% in 45 min
TypeLi-Ion 309 mAh (1.19 Wh)Li-Ion 309 mAh (1.19 Wh)
Misc
ColorsGraphite, Gold, SilverStarlight, Midnight, Blue, Green, Red
ModelsA2475, A2476, A2477, A2478, watch6,8, watch6,9A2473, A2474, A2475, A2476, A2477, A2478, watch6,6, watch6,7, watch6,8, watch6,9
PriceAbout 310 EURAbout 500 EUR
SAR1.10 W/kg (head)1.10 W/kg (head)
SAR EU0.70 W/kg (head)     1.50 W/kg (body)0.70 W/kg (head)     1.50 W/kg (body)
Camera
 NoNo