Fitbit Flex 2 vs. Diesel On Full Guard vs. Garmin Vivoactive 3 vs. Garmin Vivofit 4 vs. Polar A370

 
Flex 2
On Full Guard
Vivoactive 3
Vivofit 4
A370
 FitbitFlex 2Remove Buy NowDieselOn Full GuardRemove Buy NowGarminVivoactive 3Remove Buy NowGarminVivofit 4Remove Buy NowPolarA370Remove Buy Now

Basic Info

Suggested Price$100$325$299$79.95$179.95
Release20162017201720182017

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 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/a454 x 454240 x 24088 x 88160 x 80
Sizen/a1.4 inches1.2 inchesNA1.18 inches
Touchn/a
TypeLEDOMOLEDMIPNATFT 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/aAndroid Wear 2.0
Apps
Music

All Wearables