Temperature sensor, light sensor, optical heart rate sensor network/bearer infra wi-fi only, bluetooth only audio and video audio playing format mp3, m4a, 3ga, aac, ogg, oga, wav, amr, awb connectivity location technology gps, glonass, beidou, galileo wi-fi nfc bluetooth v5.3 os wear os powered by samsung technology super amoled size1.3" (33.3mm) resolution 432 x 432 colour depth16m processor cpu speed 1.6ghz, 1.5ghz cpu type penta-core storage/memory memory (gb)2 storage (gb)32 available storage (gb)21.1 sensors accelerometer, barometer, bioelectrical impedance analysis sensor, electrical heart sensor, gyro sensor, geomagnetic sensor, infrared temperature sensor, light sensor, optical heart rate sensor durability 5 atm battery battery capacity (mah, typical) 300 usage time (hours, aod off) up to 40 usage time (hours, aod on) up to 30