Fitbit Flex 2 vs. Garmin Chronos vs. Garmin Vivosmart 3 vs. Polar A370

 
Flex 2
Chronos
Vivosmart 3
A370
 FitbitFlex 2Remove Buy NowGarminChronosRemove Buy NowGarminVivosmart 3Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$1500$139.99$179.95
Release2016201820172017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days8 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/a218 x 21864 x 128160 x 80
Sizen/a1.2 inchesNA1.18 inches
Touchn/a
TypeLEDMIPOLEDTFT LCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM10 ATM5 ATMWR30

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OS
Apps
Music

All Wearables