Amazfit Stratos vs. Amazfit Arc vs. Casio WSD-F20A vs. Garmin Forerunner 235 vs. Fitbit Flex

 
Stratos
Arc
WSD-F20A
Forerunner 235
Flex
 AmazfitStratosRemove Buy NowAmazfitArcRemove Buy NowCasioWSD-F20ARemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$199$69.99$399$299.99$100
Release20182016201820172013

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days20 days1 day9 days5 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution320 x 30072 x40320 x 320215 x 180NA
Size1.34 inches0.42 inches1.32 inches1.23 inchesNA
TouchNA
TypeOLEDOLEDLCDMIPLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP675 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemProprietaryWear OSNA
Apps
Music

All Wearables