Languageschinese english capacity mah80 materialtpu sim card typeno sim card slot connectivitybluetooth40 fitness wellnessstopwatch sleep tracker activity tracker call reminder alarm clock cpunrf51822 charging timeh2 3 waterproof levelipx 6 typesmart bracelet featurespedometers calories burned anti lost heart rate monitor camera control water resistant water proof message control hands free calls touch screen sports distance tracking long standby blood pressure measu