Fitbit Flex 2 vs. Fitbit Alta HR vs. Garmin Vivosmart 3 vs. Diesel On Full Guard 2.5 vs. Garmin VivoActive 4

 
Flex 2
Alta HR
Vivosmart 3
On Full Guard 2.5
VivoActive 4
 FitbitFlex 2Remove Buy NowFitbitAlta HRRemove Buy NowGarminVivosmart 3Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$150$139.99$325$349
Release20162017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days5 days4 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a128 x 3664 x 128454x454260 x 260
Sizen/a1.4 inchesNA1.39 inches1.3ionches
Touchn/a
TypeLEDOLEDOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM3 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSWear OS
Apps
Music

All Wearables