Fitbit One vs. Garmin Forerunner 935 vs. Fitbit Alta HR vs. Apple Watch Series 4 vs. Amazfit T-Rex

 
One
Forerunner 935
Alta HR
Watch Series 4
T-Rex
 FitbitOneRemove Buy NowGarminForerunner 935Remove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$100$500$150$329$140
Release20122017201720182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 daysUp to 2 weeks7 daysNot Yet20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a240 x 240128 x 36384 x 480360 x 360
Sizen/a1.2 inches1.4 inches1.78 inches1.3 inches
Touch
TypeOLEDLCDOLEDMicroLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant5 ATMNot Yet5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OS 5Build-in
Apps
Music

All Wearables