\u00A0Features:\u00A0 \u00A01. Heart rate monitoring, blood pressure monitoring, sleep monitoring, sedentary reminder, always pay attention to your health, and give yourself and your family a health guarantee.\u00A0\u00A0 \u00A02. Support female physiological period function reminder, even if the work is too busy, you are not afraid to forget.\u00A0\u00A0 \u00A03. Pedometer,Step Traker, distance , calories, stopwatch , countdown, call reminder ( caller number\/name ), message reminder, alarm reminder, anti-lost reminder, sedentary reminder, remote control photo, lift wrist bright screen , etc., Make your life easier. No GPS module, support GPS track query.\u00A0\u00A0 \u00A04. IP68 deep waterproof , no fear of sweat, rain. It makes you feel at ease when you do exercise.\u00A0\u00A0 \u00A05. Support multi-language, Bluetooth 4.0\u00A0 \u00A0\u00A0 \u00A0 :\u00A0 \u00A0Product model: F21\u00A0\u00A0 \u00A0App operating system: for IOS8.0 or above,for Android4.4 or higher\u00A0\u00A0 \u00A0Gsencor sensor: KXTJ3-1057\u00A0\u00A0 \u00A0Master: nRF 52832\u00A0\u00A0 \u00A0Heart rate sensor: Yiguang PD70-01C-TR7\u00A0\u00A0 \u00A0Vibration reminder: motor vibration reminder\u00A0\u00A0 \u00A0Waterproof rating: IP68\u00A0\u00A0 \u00A0Display: 1.14\