Fitbit Flex 2 vs. Huawei Talkband B2 vs. Fitbit Charge 3 vs. Garmin Vivosmart HR Plus vs. Garmin Vivosmart 4

 
Flex 2
Talkband B2
Charge 3
Vivosmart HR Plus
Vivosmart 4
 FitbitFlex 2Remove Buy NowHuaweiTalkband B2Remove Buy NowFitbitCharge 3Remove Buy NowGarminVivosmart HR PlusRemove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$100$180$150$179$130
Release20162015201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days7 days5 days7 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 8866 x 18160 x 6848 x 128
Sizen/a0.73 inches.721 inches0.5 inches x 0.8 inches0.74 inches
Touchn/a
TypeLEDPMOLEDOLEDLCDOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP575 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNANA
Apps
Music

All Wearables