Display: 1.39 '' amoled hd display, resolution: 454x454 hd. memory: 4 gb.
connection: bluetooth 5.1, ble / br / edr. gps supported. water resistance: 5 atm water-resistant.
battery: 14 days for typical use.
the charging port: megnetic recharging thimble. charging voltage and current: 5v 0.5a /1a/ 1.5a / 2a.
key features: 14-day battery life; 15 professional workout modes; 85 custom workout modes; spo2 monitoring(blood oxygen saturation monitor); heart rate tracker; gps supported; better sleep monitoring; play music; fitness tracker.