Fitbit Flex 2 vs. Basis Peak vs. Fitbit Charge HR vs. Garmin Vivosmart 4 vs. Amazfit GTR

 
Flex 2
Peak
Charge HR
Vivosmart 4
GTR
 FitbitFlex 2Remove Buy NowBasisPeakRemove Buy NowFitbitCharge HRRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$100$200$150$130$199
Release20162014201520182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4 days5 days7 days24 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNANA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a168 x 144NA48 x 128454 x 454
Sizen/a1.25 inchesNA0.74 inches1.39 inches
Touchn/aNA
TypeLEDLCDOLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNANABuild-in
Apps
Music

All Wearables