N18 2.01 inch Color Screen Smart Watch,Support Bluetooth Call Health Monitoring About Product 1. CPU:701N-F8 2. Bluetooth Version: BLE 5.33.0 3. Battery capacity: 200mAh 4. Bracelet memory:32M 5. Standby time: About 30 days 6. Working time:About 7 days 7. Charging method: Wireless charging 8. APP: lefun 9. APP supports languages: English,Chinese,Arabic,Czech,German,French,Italian,Malaysia,Poland,Portuguese,Russian,Spanish,Thai,Türkiye,Vietnam,Persia,India Hindi,Indonesian,Hebrew,Romania,Hungary 10. Watch supports languages: English,Chinese,Arabic,Czech,German,French,Italian,Malaysia,Poland,Portuguese,Russian,Spanish,Thai,Türkiye,Vietnam,Persia,India Hindi,Indonesian,Hebrew,Romania,Hungary 11. System requirements: android8.0 or above ios14.0 or above Main Function 1. Heart rate monitoring,blood pressure monitoring,blood oxygen monitoring 2. Step,distance,calorie 3. Sleep monitoring (sleep duration, sleep quality) 4. NFC,Alipay,blood sugar,pinch your hand to answer,stacked components,scan code connection,language switching 5. Split screen,password lock screen,weather,play music,uric acid,respiratory training,blood fat 6. Alarm clock,electrocardiogram,temperature mnitoring,call reminder,timer 7. Message reminder,calculator,long sitting reminder,alarm reminder,stopwatch,find the bracelet,brightness adjustment