Fitbit Flex 2 vs. Garmin Vivosmart vs. Fitbit Charge vs. Fitbit Charge 3 vs. Fitbit Flex

 
Flex 2
Vivosmart
Charge
Charge 3
Flex
 FitbitFlex 2Remove Buy NowGarminVivosmartRemove Buy NowFitbitChargeRemove Buy NowFitbitCharge 3Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$100$170$130$150$100
Release20162014201420182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days7-10 days7 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNANA
Macn/a
Windowsn/aNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 16NA66 x 18NA
Sizen/a1.41 inchesNA.721 inchesNA
Touchn/aNANA
TypeLEDOLEDOLEDOLEDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM1 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNANANA
Apps
Music

All Wearables