Fitbit One vs. Amazfit Stratos vs. Amazfit Arc vs. Casio WSD-F20A vs. Fitbit Flex

 
One
Stratos
Arc
WSD-F20A
Flex
 FitbitOneRemove Buy NowAmazfitStratosRemove Buy NowAmazfitArcRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$100$199$69.99$399$100
Release20122018201620182013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days5 days20 days1 day5 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 30072 x40320 x 320NA
Sizen/a1.34 inches0.42 inches1.32 inchesNA
TouchNA
TypeOLEDOLEDOLEDLCDLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5 ATMIP675 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aProprietaryWear OSNA
Apps
Music

All Wearables