Xiaomi Amazfit Band 7 Fitness TrackerThe Xiaomi Amazfit Band 7 comes with a 1.47" AMOLED, 198x368, 282 PPI, Touch screen that provides a bigger and clearer viewing experience. It features OxygenBeats with which you can measure your blood oxygen saturation and understand your physical state any time anywhere. It performs real-time heart rate monitoring and high heart rate warning. Equipped with the newly upgraded huami-proprietary BioTracker 2 PPG bio-tracking optical sensor, the band delivers heart rate measurement accuracy comparable to that of professional heart rate monitoring equipment. You can check your personal stress level -relaxed, normal, medium, or high- anytime you feel pressured or stressed, and get some suggestions to reduce it. A guided breathing exercise is specially developed to help you recover from excessive stress. The Amazfit Band 7 identifies sleep stages (deep, light, and REM5, plus awake periods) and provides suggestions based on analysis of your sleep breathing quality and overall sleep quality, to help you improve your sleep habits. It can even monitor daytime naps over 20 minutes. It features a 15-day battery Life with a typical usage scenario and a 25-day battery life with a power-saving scenario. With a fully charged Amazfit Band 7, you don't need to bring a charger for a two-week trip. As it comes with Alexa Built-in, you can talk to Amazon Alexa on your Amazfit Band 7. Ask Alexa questions, get translations, set alarms, and timers, create shopping lists, check the weather, control your smart home devices, and more. The Xiaomi Amazfit Band 7 comes with a 1-year warranty (For Warranty Claim you Must submit Box along with all the accessories. Physical Damage or dent/scratch will not be accepted for warranty)...