Model Number: DO 003-51 Brand Name: DO Key Specifications/Special Features: Functions:Step pedometer, calorie counter, distance tracker, sleep tracker, sleep monitoring, time date display, call reminder, alarm reminder, silent vibration, fitness activity tracker smart wristbandModel number: DO 0030.49" screen pedometerHost material: PC polishing

Strap material: soft silicone

Application system: iOS 7.0 above (iPhone4, 4S, 5, 5C, 5S, 6, 6 plus), iPad 4, iPad Air, iPad mini, iPad mini 2, Samsung Galaxy S 4/5,

Samsung Note 3, Android 4.3 BLE devices (support Bluetooth 4.0 mobile phones)

CPU: Nordic nRF51822

Screen: 0.49-inch OLED screen

Data sync/Bluetooth: Bluetooth 4.0+EDR

Colors: orange, blue, black, yellow, green

Size: 240x20x10mm

Weight: 25g, total package 135g

Battery: 60mAh

Standby time: 7-10 days

Charging time: 30 minutes

Charging port: micro USB 3 point connect

LED indicator: yes

Data storage: 15 days

Gift box size: 95x95x85mm

Standard packing: 1 host, 1 user's manual, 1 USB charging line, 1 gift box

Main function: time, date, battery display, step pedometer, calorie counter, distance track, goal set, ring, sleep tracker, sleep quality monitor, call come in vibration remind, low power remind

Pedometer: accurate algorithm and data + self-developed APP

Waterproof: IPx65, not for swimming or diving