Samsung Gear S2 vs. Fitbit Charge 2 vs. Fitbit Charge HR vs. Fitbit Flex vs. Xiaomi Mi Band 3

 
Gear S2
Charge 2
Charge HR
Flex
Mi Band 3
 SamsungGear S2Remove Buy NowFitbitCharge 2Remove Buy NowFitbitCharge HRRemove Buy NowFitbitFlexRemove Buy NowXiaomiMi Band 3Remove Buy Now

Basic Info

Suggested Price$300$150$150$100$44.95
Release20152016201520132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days5 days5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/aNANA128 x 80
Size1.2 inchesn/aNANA0.78 inches
Touchn/aNANA
TypeSuper AMOLEDOLEDOLEDLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP68n/a1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/aNANA
Apps
Music

All Wearables