Precise GPS positioning and heart rate tracking (for advanced sports): Huawei's developed Sunflower positioning system achieves a 20%5 increase in positioning accuracy through enhanced GNSS algorithms and antenna architecture. It takes running, golf, cycling and more to another level. Up to 21 days battery life: Outstanding robust carrying capacity with up to 21 days battery life. With the innovative adoption of a high-silicon battery, energy density increases by 37%. Start your adventure with a single shipment. Track your bikes at a professional level with the power of virtual cycling: the watch always keeps you company in case of an emergency. All you have to do is relax and ride with you. A course of up to 40 hours. It’s always here and you’re aiming for a distant place. Get new cycling energy meters on your wrist. Practice with science. Featuring an elegant design: The 1.45-inch AMOLID display features 5.5% larger screen space for more immersion. 4 Brightness increases by 1.5 times up to 3000 light units per pixel, ensuring easy clarity even under outdoor sunlight. Heart chart analysis: Continuously press the electrode on the side for 30 seconds to create a heart chart report on your watch after the measurement. Widely compatible: The Huawei WATCH GT 6 Pro is compatible with both iOS and Android for greater ease of use. Wrist circumference 140-210 mm