Fitbit Flex 2 vs. Casio WSD-F20A vs. Fitbit Alta HR vs. Garmin Forerunner 45 vs. Fitbit Sense 2

 
Flex 2
WSD-F20A
Alta HR
Forerunner 45
Sense 2
 FitbitFlex 2Remove Buy NowCasioWSD-F20ARemove Buy NowFitbitAlta HRRemove Buy NowGarminForerunner 45Remove Buy NowFitbitSense 2Remove Buy Now

Basic Info

Suggested Price$100$399$150$199$300
Release20162018201720192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day7 days7 days6 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a320 x 320128 x 36208 x 208336x336
Sizen/a1.32 inches1.4 inches1.04 inches1.59 inches
Touchn/a
TypeLEDLCDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWear OSBuilt-in
Apps
Music

All Wearables