Fitbit Flex 2 vs. Amazfit Pace vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Polar A370

 
Flex 2
Pace
645 Music
Vivofit 4
A370
 FitbitFlex 2Remove Buy NowAmazfitPaceRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$130$450$79.95$179.95
Release20162017201820182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days7 days1 yearUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 300240 x 24088 x 88160 x 80
Sizen/a1.34 inches1.2 inchesNA1.18 inches
Touchn/a
TypeLEDTFT LCDMIPNATFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM5 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietary
Apps
Music

All Wearables