Notice:<br />1. Be compatible with Android ( OS 4.3 or above ); for iPhone ( iOS 8.0 or above )<br />2. IP67 waterproof means that stepping depth doesn't exceed one meter and steeping time doesn't exceed 30 minutes<br />3. Please search "H Band" at Apple Store or Android to download the App<br />4. Filling up the bracelet takes about 1 hour<br />Bluetooth Version: Bluetooth 4.0 <br />People: Female table｣ｬMale table <br />Waterproof: Yes <br />Waterproof Rating : IP67 <br />Screen: Yes <br />Screen type: OLED <br />Compatible OS: Android｣ｬIOS <br />Compatability: Android 4.3 / iOS 8.0 and above system <br />Language: English<br />Battery Type: Lithium Polymer Battery <br />Battery Capacity: 90mAh <br />Power: Built-in Battery <br />Standby time: about 5 days<br />Functions: Alarm Clock｣ｬCall reminder｣ｬCalories burned measuring｣ｬDate｣ｬDistance recording｣ｬMeasurement of heart rate｣ｬPedometer｣ｬSedentary reminder｣ｬSleep management｣ｬSMS Reminding<br />Shape of the dial: Rectangle <br />Case material: ABS <br />Band material: TPU<br />The dial thickness: 1 cm / 0.39 inch <br />The dial diameter: 1.8 cm / 0.71 inch <br />The band width: 1.6 cm / 0.63 inch <br />Wearable length: 15.5 - 22.5 cm / 6.1 - 8.86 inch <br />Package weight: 0.097 kg <br />Product size (L x W x H): 24.00 x 1.80 x 1.00 cm / 9.45 x 0.71 x 0.39 inches <br />Package size (L x W x H): 16.00 x 8.50 x 2.50 cm / 6.3 x 3.35 x 0.98 inches<br />Package Contents: 1 x Smart Bracelet｣ｬ 1 x English and Chin