Garmin Forerunner 225 vs. Fitbit Charge vs. Garmin Forerunner 45 vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
Forerunner 225
Charge
Forerunner 45
T-Rex
VivoActive 4
 GarminForerunner 225Remove Buy NowFitbitChargeRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$300$130$199$140$349
Release20152014201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10 hours to 4 weeks7-10 days7 days20 days8 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolution180 x 180NA208 x 208360 x 360260 x 260
Size1 inchNA1.04 inches1.3 inches1.3ionches
TouchNA
Typen/aOLEDLCDAMOLEDMIP

Functions

Audio Speaker22
Clock
Phonen/a
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM5 ATM5 ATM5 ATM

Notifications

Phonen/a
Emailsn/a
Textsn/a

Software

Operating Systemn/aNABuilt-inBuild-inWear OS
Appsn/a
Musicn/a

All Wearables