Apple Watch Series 7

Network Technology
GSM / HSPA / LTE
Body Dimensions 45 x 38 x 10.7 mm (1.77 x 1.50 x 0.42 in)
Weight 42.3 g (41mm), 51.5 g (45mm) (1.48 oz)
Build Glass front, ceramic/sapphire crystal back, stainless steel frame
SIM eSIM
IP6X certified
50m water resistant
ECG certified (region dependent SW application; HW available on all models)
Display Type Retina LTPO OLED, 1000 nits (peak)
Size 1.9 inches
Resolution 484 x 396 pixels (~326 ppi density)
Protection Sapphire crystal glass
Always-on display
Platform OS watchOS 8.0, upgradable to 8.5.1
Chipset Apple S7
CPU Dual-core
GPU PowerVR
Memory Card slot No
Internal 32GB
Camera No
Sound Loudspeaker Yes
3.5mm jack No
Comms WLAN Wi-Fi 802.11 b/g/n, dual-band
Bluetooth 5.0, A2DP, LE
GPS Yes, with A-GPS, GLONASS, GALILEO, QZSS, BDS
NFC Yes
Radio No
USB No
Features Sensors Accelerometer, gyro, heart rate, barometer, always-on altimeter, compass, SpO2, VO2max
Natural language commands and dictation (talking mode)
Ultra Wideband (UWB) support
Battery Type Li-Ion 309 mAh (1.19 Wh), non-removable
Charging Wireless charging
Misc Colors Graphite, Gold, Silver