Fitbit Alta vs. Fitbit Ionic vs. Apple Watch Series 5 vs. Garmin Forerunner 45 vs. Amazfit T-Rex

 
Alta
Ionic
Watch Series 5
Forerunner 45
T-Rex
 FitbitAltaRemove Buy NowFitbitIonicRemove Buy NowAppleWatch Series 5Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$130$299$329$199$140
Release20162017201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ daysNot Yet7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a348x250384 x 480208 x 208360 x 360
Sizen/a1.421.78 Inches1.04 inches1.3 inches
Touchn/a
TypeOLEDOLEDMicroLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a50mNot Yet5 ATM5 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/aFitbit OSWatchOS 5Built-inBuild-in
Apps
Music

All Wearables