Fitbit Ionic vs. Amazfit Stratos vs. Polar A370 vs. Fossil Gen 5 Smartwatch Carlyle vs. Apple Watch 7

 
Ionic
Stratos
A370
Gen 5 Smartwatch Carlyle
Watch 7
 FitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowPolarA370Remove Buy NowFossilGen 5 Smartwatch CarlyleRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$299$199$179.95$295$429
Release20172018201720192021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 daysUp to 3 days1 day18 Hours
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 300160 x 80328 x 328396 x 484
Size1.421.34 inches1.18 inches1.3 inches1.9 inches
Touch
TypeOLEDOLEDTFT LCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATMWR303 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSProprietaryWear OSWatchOS 8
Apps
Music

All Wearables