Amazfit Active 2

Stylish Design, Bright Display: The sleek stainless steel build blends classic style with workout durability, while the bright 1.32" AMOLED display keeps your data easy to read, even under bright sunlight. Precise Heart Rate & Sleep Tracking: Amazfit's BioTracker technology tracks your heart rate and sleep data with accuracy that previous sensors just can't match. Up to 10 Days of Battery Life: With long battery life that lasts up to 10 days with typical use, nightly recharges are a thing of the past.