Samsung Gear S2 vs. Withings Activite Sapphire vs. Fitbit Charge 2 vs. Fitbit Flex vs. Xiaomi Mi Band 3

 
Gear S2
Activite Sapphire
Charge 2
Flex
Mi Band 3
 SamsungGear S2Remove Buy NowWithingsActivite SapphireRemove Buy NowFitbitCharge 2Remove Buy NowFitbitFlexRemove Buy NowXiaomiMi Band 3Remove Buy Now

Basic Info

Suggested Price$300$450$150$100$44.95
Release20152014201620132018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2-3 days8 months5 days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Macn/an/a
Windowsn/an/a

Connectivity

Bluetooth
Cellularn/a
GPSn/a
NFC
Wi-Fi

Display

Color
Resolution360 x 360n/an/aNA128 x 80
Size1.2 inches1.3 inchesn/aNA0.78 inches
Touchn/aNA
TypeSuper AMOLEDAnalogOLEDLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIP685 ATMn/a1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemTizenn/an/aNA
Apps
Music

All Wearables