Smart Outdoor Watch OS: Android Wear 2.0 (used with Smartphone running Android 4.3+ or later. For models for which operation has been confirmed, refer to the Google check page. http://www.android.com/wear/check/ ) (iPhone*5, equipped with iOS 9.0+ or later: iPhone 5 or later, with limited functionality.) 50 Meter Water Resistant*1 Military Standard MIL-STD-810G (United Stated Military Standard issued by the U.S. Department of Defense) 1.32-inch dual layer display, Color TFT LCD (320 x 300 pixles) + Monochrome LCD Capacitive touchscreen GPS (American GPS, Russian GLONASS and Japanese “MICHIBIKI” QZSS) Steadily receives positioning data and displays your current position on a full-color map Built-in Sensors: magnetic (direction), pressure (atmospheric, altitude), accelerometer, and gyrometer Microphone (water resistant) Vibration Bluetooth: Bluetooth® V4.1 (Low Energy support) Wi-Fi: IEEE802.11 b/g/n Memory & storage: 512 MB RAM, 4 GB internal storage Auto Time Correction: By communication with smartphone (Time can be adjusted manually.) Time zones (world time function): Supports multiple world time zones (Types depend on system time zones) Tool App (Compass, Altimeter, Barometer, Sunrise/Sunset, Tide Graph & Fishing Time, My Graph) Digital Compass Measuring range: 0 to 359 degrees Measuring unit: 1 degree 60 seconds continuous measurement Hand indication of North Magnetic declination calibration Bearing Memory Gradient Calibration Altimeter Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft) Measuring unit: 1m (5ft) Measurement Accuracy: within +/-75m (+/- 250ft) Measurement Interval: 1-second (shortest) Altitude Graph: Past 24 hours Manual altitude correction, Auto altitude correction using location information*2 *3 Barometer Display range: 260 to 1,100 hPa (7.6 to 32.5 inHg) Display unit: 1 hPa (0.1 inHg) Measurement Accuracy: within +/-3 hPa (within +/-0.1 inHg) Atmospheric pressure tendency graph: Past 24 hours Measurement Interval: 1-minute