Description NETWORK Technology GSM / HSPA / LTE LAUNCH Announced 2019, September Status Available. Released 2019, September BODY Dimensions 44 x 38 x 10.7 mm (1.73 x 1.50 x 0.42 in) Weight 47.8 g (1.69 oz) Build Glass front (Sapphire crystal), ceramic/sapphire crystal back, stainless steel frame SIM eSIM 50m water resistant ECG certified (region dependent SW application; HW available on all models) DISPLAY Type Retina LTPO OLED, 1000 nits (peak) Size 1.78 inches, 10.0 cm2 (~60.0% screen-to-body ratio) Resolution 448 x 368 pixels (~326 ppi density) Protection Sapphire crystal glass 3D Touch display Always-on display PLATFORM OS watchOS 6.0, upgradable to 7.1 Chipset Apple S5 CPU Dual-core GPU PowerVR MEMORY Card slot No Internal 32GB 1GB RAM CAMERA No SOUND Loudspeaker Yes 3.5mm jack No COMMS WLAN Wi-Fi 802.11 b/g/n Bluetooth 5.0, A2DP, LE GPS Yes, with A-GPS, GLONASS, GALILEO, QZSS NFC Yes Radio No USB No FEATURES Sensors Accelerometer, gyro, heart rate (2nd gen), barometer, compass Natural language commands and dictation (talking mode) BATTERY Type Li-Po 296 mAh (1.13 Wh), non-removable Charging Wireless charging Stand-by Up to 18 h (mixed usage) MISC Colors Space Black, Silver, Gold Models A2156, A2157, A2094, A2095