Smart Watch. Dimensions: 50 x 40 x 10 mm. Multiple colors to choose from. Made from medical level TPU/Silicone. Battery: 230mAh, chargeable polymer lithium battery. LED: 2 LEDs. Storage: data, after uploaded to a server and can be stored as long as 3 years. Modes: activity/sleep/nap/Bluetooth. Smart alert: incoming call alert, idle alert and alarm. Accompanying software: iOS 6.0/Android 4.3. Waterproof: daily waterproofing, IP44. 50mm H x 40mm W x 10mm D