Fitbit Ionic vs. Amazfit Arc vs. Casio WSD-F20A vs. Polar A370 vs. Amazfit GTS

 
Ionic
Arc
WSD-F20A
A370
GTS
 FitbitIonicRemove Buy NowAmazfitArcRemove Buy NowCasioWSD-F20ARemove Buy NowPolarA370Remove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$299$69.99$399$179.95$150
Release20172016201820172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days20 days1 dayUp to 3 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x25072 x40320 x 320160 x 80348 x 442
Size1.420.42 inches1.32 inches1.18 inches1.65 inches
Touch
TypeOLEDOLEDLCDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50mIP675 ATMWR305 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSWear OSWear OS
Apps
Music

All Wearables