Fitbit Flex 2 vs. Huawei Talkband B2 vs. Garmin 645 Music vs. Fitbit Alta HR vs. Garmin Vivosmart 3

 
Flex 2
Talkband B2
645 Music
Alta HR
Vivosmart 3
 FitbitFlex 2Remove Buy NowHuaweiTalkband B2Remove Buy NowGarmin645 MusicRemove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 3Remove Buy Now

Basic Info

Suggested Price$100$180$450$150$139.99
Release20162015201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days3 days7 days7 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 88240 x 240128 x 3664 x 128
Sizen/a0.73 inches1.2 inches1.4 inchesNA
Touchn/a
TypeLEDPMOLEDMIPOLEDOLED

Functions

Audio SpeakerBluetooth
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP575 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/a
Apps
Music

All Wearables