HUAWEI Atum Pro Black

(Wrist Circumference: 140-210mm) Ultra-precise GPS and heart rate tracking (For advanced outdoor sports): The improved HUAWEI Sunflower Positioning System offers 20% increased positioning accuracy thanks to optimized GNSS algorithms and antenna architecture. Takes trail, golf, cycling and many other sports to the next level Up to 21 days of battery life: Powerful signature endurance with up to 21 days battery life1. Thanks to the innovative adoption of a high silicon battery, the energy density increases by 37%. Enjoy your adventures to the fullest with a single charge Professional level cycling tracking with Virtual Cycling Power: The watch always accompanies you in case of emergency. Relax and enjoy the ride. Ride up to 40 hours. It is always there when you aim for a far away place. Get new cycling power measurements on your wrist. Train with science Titanium alloy sapphire crystal (elegant and durable): The use of high-quality sapphire crystal ensures clear transparency and durability. Reinforced by an aerospace grade titanium alloy case, this lightweight watch is sturdy enough to face everyday challenges ECG Analysis: Press and hold the side electrode for 30 seconds to generate an ECG report on your watch after measurement