Amazfit GTR 2 - Classic Edition 3D Curved Bezel-less Design - The Amazfit GTR 2’s integrated design concept, with 3D glass, naturally transitions to the stainless-steel watch body, resulting in a more premium design and a wider field of vision. Talk-to-your-watch - GTR 2 includes a microphone and speaker to let you answer calls on your watch. Connect to your mobile phone via Bluetooth to ensure you never miss an important call. Intelligent Voice Assistance with Alexa - set alarms, timers, check the weather, control your smart home devices, create shopping lists and more. Just raise your wrist and ask Alexa. It means displaying time or your favourite apps is easy to read. Our watch face store also provides dozens of different styles of watch faces for you to choose from. Featuring +90 sports modes you can monitor critical workout data such as heart rate, distance travelled, speed and calories burned to help track and improve your athletic performance. Get deeper performance analysis once synced to the Zepp App. Powered for Maximum Performance - featuring a sophisticated circuit design, thin body, and a high-capacity 471 mAh battery, the GTR 2 boasts a battery life of up to 14 days with typical usage. Understand Your Sleep - Analyse Sleep Stages and Naps - The Amazfit GTR 2 supports in-depth sleep monitoring which can accurately determine sleep stages including light, deep and REM sleep. One Score to Summarise Your Physical Wellbeing - PAI (Personal Activity Intelligence) is a health assessment system that uses algorithms to convert complex data such as heart rate, activity duration and other health data into a single, daily score. For the Swimmers - 5 ATM Water-Resistance. The Amazfit GTR 2 has a water-resistance of up-to 50 metres, on par with traditional high-end watches. Depth: 10.7 MM Height: 46.6 MM Width: 46.6 MM