Polar M600 vs. Polar V800 vs. Diesel On Full Guard vs. Fitbit Flex vs. Garmin VivoActive 4

 
M600
V800
On Full Guard
Flex
VivoActive 4
 PolarM600Remove Buy NowPolarV800Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitFlexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$330$470$325$100$349
Release20162014201720132019

Activity & Fitness

Calories
Cycling (Bicycling)n/a
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days13 hours to 30 days1 day5 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution240 x 240n/a454 x 454NA260 x 260
Size1.3 inchesn/a1.4 inchesNA1.3ionches
Touchn/aNA
TypeTFTn/aOMOLEDLEDMIP

Functions

Audio SpeakerAlerts onlyAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX83 ATMIP671 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemAndroid Wearn/aAndroid Wear 2.0NAWear OS
Apps
Music

All Wearables