FeaturesVoice callingOver 100 workout modes & heart-rate monitoringOxygen saturation detectionBattery life: up to 2 weeksSmart notifications1.39\" AMOLED Sapphire DisplayThe Huawei Watch GT2 Pro\'s wear-resistant sapphire watch dial pairs seamlessly with the titanium frame for a lightweight and solid design. The glossy and skin-friendly ceramic back ensures a comfortable wearing.Oxygen Saturation DetectionSupporting intelligent single-time SpO2 level measuring, you can detect the level of oxygen in the blood no matter when you are working or climbing.100+ Workout ModesSupporting precise data tracking for 100+ workout modes, including 17 professional modes and 85 custom modes, the smart watch helps track all the way you move.Efficient Wireless ChargingUp to 2 weeks of battery life provides continuous power for your efficient life. With 5 minutes of wireless quick charge, you can use it for 10 hours. It also supports reverse charging from your phone when there is lack of chargers.Bluetooth CallingYou can receive, reject or mute calls and check the history directly on your HUAWEI WATCH GT 2 Pro through Bluetooth connection with the phone.System Requirements: Android 5.0 or later, iOS 9.0 or later