Fitbit Alta vs. Fitbit Alta HR vs. Fitbit Flex vs. Diesel On Full Guard 2.5 vs. Fitbit Sense 2

 
Alta
Alta HR
Flex
On Full Guard 2.5
Sense 2
 FitbitAltaRemove Buy NowFitbitAlta HRRemove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$130$150$100$325$300
Release20162017201320182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7 days5 days4 days6 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a128 x 36NA454x454336x336
Sizen/a1.4 inchesNA1.39 inches1.59 inches
Touchn/aNA
TypeOLEDOLEDLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a1 ATM3 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aNAWear OS
Apps
Music

All Wearables