Apple Watch Series 7

Display: 45mm 396 by 484 pixels 1143 sq mm display area
41mm 352 by 430 pixels 904 sq mm display area Always-On Retina LTPO OLED display 1000 nits brightness
Features: GPS, GLONASS, Galileo, QZSS, and BeiDou 
Compass Always-on altimeter Water-resistant 50 meters
Blood oxygen sensor (Blood Oxygen app) Electrical heart sensor (ECG app) Third-generation optical heart sensor
International emergency calling Emergency SOS Accelerometer up to 32 g-forces with fall detection
Gyroscope Ambient light sensor 
Speaker: Microphone
Capacity 32GB
Ceramic and sapphire crystal back
Connectivity: LTE and UMTS 5G LTE Bluetooth 5.0 WiFi calling
Network Status - Unlocked
Works on: Vodacom, MTN, Cell C, Telkom Mobile
Dimensions: 41mm Height: 41mm Width: 38mm Depth: 10.7mm
45mm Height: 45mm Width: 38mm Depth: 10.7mm
OS Chip: S7 with 64-bit dual-core processor W3 Apple wireless chip U1 Ultra Wideband Chip
Battery: Built-in rechargeable lithium-ion battery
Up to 18 hours Magnetic charging cable
USB power adapter: RAM 1 GB
Camera: No camera