Fitbit Flex 2 vs. Apple Watch vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Diesel On Full Guard 2.5

 
Flex 2
Watch
WSD-F20A
Alta HR
On Full Guard 2.5
 FitbitFlex 2Remove Buy NowAppleWatchRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowDieselOn Full Guard 2.5Remove Buy Now

Basic Info

Suggested Price$100$349$399$150$325
Release20162015201820172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours1 day7 days4 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a340 x 272 or 390 x 312320 x 320128 x 36454x454
Sizen/a1.5 inches or 1.65 inches1.32 inches1.4 inches1.39 inches
Touchn/a
TypeLEDAMOLEDLCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX75 ATM3 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWear OSWear OS
Apps
Music

Wearables by Diesel

Diesel On Full Guard

All Wearables