Fitbit Flex 2 vs. Amazfit Cor vs. Fitbit Charge vs. Garmin Vivosmart 4

 
Flex 2
Cor
Charge
Vivosmart 4
 FitbitFlex 2Remove Buy NowAmazfitCorRemove Buy NowFitbitChargeRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$100$79.99$130$130
Release2016201820142018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days12 days7-10 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a80 x 160NA48 x 128
Sizen/a1.23 inchesNA0.74 inches
Touchn/aNA
TypeLEDIPS LCDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables