D20 Y68 PRO Smart Watch Bluetooth Waterproof Sport SmartWatch for Android IOS

TPU. Specification: APP: Fitpro/Hryfine. Case Material: Aluminum Alloy. Strap Material: TPU. Screen: 1.3inch IPS Colorful screen. Chip: HS6620D. Bluetooth Version: 4.0. Waterproof Grade: IP67 note: cannot wear for hot water bath and sauna). Battery Capacity: 100mAh. Charging Time: About 2 hours. Working Time: 5days. Standby Time: About 10 days. Charging Mode: Built-in USB. Function Button: One Touch Button. Compatible System: Android 4.4 and above, IOS 8.0 and above. Note Almost most smartwatch haven't charger or little battery, when you received maybe need charge 40-50 mintues, it will open by itself. Don't think product is damage. When you first receive the product, charge it for 40-50 minutes at first if it cannot be turned on because it is already low on power. APP: Fitpro/Hryfine. Feature: 1. IP67 Waterproof: It supports hand washing, rain, swim wear, meet daily needs note: cannot wear for hot water bath and sauna). 2. Health monitoring: Blood pressure monitoring, heart rate monit