Fitbit Charge 2 vs. Fitbit Flex 2 vs. Xiaomi Mi Band 2 vs. Sony SmartBand vs. Garmin Vivosmart 4

 
Charge 2
Flex 2
Mi Band 2
SmartBand
Vivosmart 4
 FitbitCharge 2Remove Buy NowFitbitFlex 2Remove Buy NowXiaomiMi Band 2Remove Buy NowSonySmartBandRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$150$100$23$100$130
Release20162016201620142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Stepsn/a
Swim

Battery

Duration5 days5 days20 hours5 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/aNA
Resolutionn/an/an/aNA48 x 128
Sizen/an/a0.42 inchesNA0.74 inches
Touchn/an/aNA
TypeOLEDLEDOLEDNAOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a5 ATMIP67IP585 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aNA
Apps
Music

All Wearables