Fitbit Blaze vs. Fitbit Alta vs. Fitbit Flex 2 vs. Polar M430 vs. Casio WSD-F20A

 
Blaze
Alta
Flex 2
M430
WSD-F20A
 FitbitBlazeRemove Buy NowFitbitAltaRemove Buy NowFitbitFlex 2Remove Buy NowPolarM430Remove Buy NowCasioWSD-F20ARemove Buy Now

Basic Info

Suggested Price$200$130$100$255$399
Release20162016201620172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 Days5 days5 days30 hours1 day
Rechargeable

Compatibility

Android
iOS
Windows PhonePartialn/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/an/a128x128320 x 320
Sizen/an/an/a1.4 inch1.32 inches
Touchn/an/a
TypeLCDOLEDLEDLCDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/a5 ATMWR305 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/an/aWear OS
Apps
Music

All Wearables