Specifications: Display: 0.96 inch OLED Acceleration: 3-axis G-sensor Water-proof level: IP67, could be stay in water 1 meter deep for 30 minutes Battery: 90 mAh Lithium-ion polymer rechargeable battery Standby time: About 7 days with full power Multiplerope skipping, jumping jacks, sit-ups, treadmill Sync Data: Bluetooth 4.0 and above Wide Compatible: Android 4.3 and above / IOS 8.0 adn above (not include iPhone 4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)4)
Brand : WOWGO