Jawbone UP2 vs. Jawbone UP4 vs. Garmin Forerunner 45 vs. Amazfit T-Rex vs. Apple Watch 8

 
UP2
UP4
Forerunner 45
T-Rex
Watch 8
 JawboneUP2Remove Buy NowJawboneUP4Remove Buy NowGarminForerunner 45Remove Buy NowAmazfitT-RexRemove Buy NowAppleWatch 8Remove Buy Now

Basic Info

Suggested Price$100$200$199$140$499
Release20152015201920192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 daysNA7 days20 days18 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
MacNANA
WindowsNANA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNANA208 x 208360 x 360340 x 272 or 390 x 312
SizeNANA1.04 inches1.3 inches1.5 inches or 1.65 inches
TouchNANA
TypeNANALCDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplash resistantNA5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNANABuilt-inBuild-inWatchOS 9
Apps
MusicNA

All Wearables