Fitbit Flex 2 vs. Diesel On Full Guard vs. Fitbit Charge 3 vs. Fitbit Charge HR vs. Fitbit Inspire HR

 
Flex 2
On Full Guard
Charge 3
Charge HR
Inspire HR
 FitbitFlex 2Remove Buy NowDieselOn Full GuardRemove Buy NowFitbitCharge 3Remove Buy NowFitbitCharge HRRemove Buy NowFitbitInspire HRRemove Buy Now

Basic Info

Suggested Price$100$325$150$150$99
Release20162017201820152019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 days5 days5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
WindowsNot yet

Connectivity

Bluetooth
Cellular
GPS
NFCNA
Wi-Fi

Display

Colorn/a
Resolutionn/a454 x 45466 x 18NA139 x 60
Sizen/a1.4 inches.721 inchesNA1.4 inches
Touchn/aNA
TypeLEDOMOLEDOLEDOLEDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NANAFitbit OS
Apps
Music

All Wearables