Amazfit Cor vs. Garmin 645 Music vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Polar A370

 
Cor
645 Music
Forerunner 235
Flex
A370
 AmazfitCorRemove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$79.99$450$299.99$100$179.95
Release20182018201720132017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration12 days7 days9 days5 daysUp to 3 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution80 x 160240 x 240215 x 180NA160 x 80
Size1.23 inches1.2 inches1.23 inchesNA1.18 inches
TouchNA
TypeIPS LCDMIPMIPLEDTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM1 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating SystemNA
Apps
Music

All Wearables