"Operating System: Wear OS by Google Sensors: Optical Heart Rate, Ambient Light, Barometric Altimeter, GPS, Accelerometer, Gyroscope, Microphone Processor: Qualcomm Snapdragon Wear 2100 Connectivity: Bluetooth(R) 4. 1 Low Energy and Wi-Fi 802. 11 b/g/n Storage: 4GB Water Resistant: Swimproof up to 30M, passes 10K stroke test What's in the Box: Smartwatch, USB Charging Cable, Quick Start Guide, Booklet "