Fitbit Flex 2 vs. Polar M430 vs. Garmin 645 Music vs. Garmin Vivosmart HR Plus vs. Polar A370

 
Flex 2
M430
645 Music
Vivosmart HR Plus
A370
 FitbitFlex 2Remove Buy NowPolarM430Remove Buy NowGarmin645 MusicRemove Buy NowGarminVivosmart HR PlusRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$255$450$179$179.95
Release20162017201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days30 hours7 days5 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128x128240 x 240160 x 68160 x 80
Sizen/a1.4 inch1.2 inches0.5 inches x 0.8 inches1.18 inches
Touchn/a
TypeLEDLCDMIPLCDTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMWR305 ATM5 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNA
Apps
Music

All Wearables