Fitbit Ionic vs. Amazfit Stratos vs. Garmin Forerunner 235 vs. Fitbit Alta HR vs. Amazfit GTS

 
Ionic
Stratos
Forerunner 235
Alta HR
GTS
 FitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowGarminForerunner 235Remove Buy NowFitbitAlta HRRemove Buy NowAmazfitGTSRemove Buy Now

Basic Info

Suggested Price$299$199$299.99$150$150
Release20172018201720172019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration4+ days5 days9 days7 days14 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution348x250320 x 300215 x 180128 x 36348 x 442
Size1.421.34 inches1.23 inches1.4 inches1.65 inches
Touch
TypeOLEDOLEDMIPOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance50m5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemFitbit OSProprietaryWear OS
Apps
Music

All Wearables