Apple Watch Series 3 vs. Garmin Forerunner 225 vs. Fitbit Ionic vs. Amazfit Stratos vs. Amazfit T-Rex

 
Watch Series 3
Forerunner 225
Ionic
Stratos
T-Rex
 AppleWatch Series 3Remove Buy NowGarminForerunner 225Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$329$300$299$199$140
Release20172015201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration18 hours10 hours to 4 weeks4+ days5 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution340 x 272 or 390 x 312180 x 180348x250320 x 300360 x 360
Size1.5 inches or 1.65 inches1 inch1.421.34 inches1.3 inches
Touch
TypeAMOLEDn/aOLEDOLEDAMOLED

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM50m5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating SystemWatchOS 4n/aFitbit OSProprietaryBuild-in
Appsn/a
Musicn/a

All Wearables