Fitbit Flex 2 vs. Fitbit Charge vs. Garmin Forerunner 45 vs. Amazfit T-Rex vs. Apple SE

 
Flex 2
Charge
Forerunner 45
T-Rex
SE
 FitbitFlex 2Remove Buy NowFitbitChargeRemove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy NowAppleSERemove Buy Now

Basic Info

Suggested Price$100$130$199$140$279
Release20162014201920192020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days7-10 days7 days20 days18 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/aNA208 x 208360 x 360384 x 480
Sizen/aNA1.04 inches1.3 inches40mm
Touchn/aNA
TypeLEDOLEDLCDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet SensorNot yet
Water Resistance5 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-inBuild-inWatchOS 5
Apps
Music

All Wearables