Jawbone UP2 vs. Polar A370 vs. Michael Kors Access Sofie HR vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
UP2
A370
Access Sofie HR
T-Rex
VivoActive 4
 JawboneUP2Remove Buy NowPolarA370Remove Buy NowMichael KorsAccess Sofie HRRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$179.95$395$140$349
Release20152017201920192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 daysUp to 3 days2 days20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNA160 x 80390 x 390360 x 360260 x 260
SizeNA1.18 inches1.19 inches1.3 inches1.3ionches
TouchNA
TypeNATFT LCDOMOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplash resistantWR300.3 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNAWear OSBuild-inWear OS
Apps
Music

All Wearables