Fitbit One vs. Michael Kors Grayson vs. Pebble Time 2 vs. Michael Kors Grayson vs. Amazfit T-Rex vs. Garmin VivoActive 4

 
One
Grayson
Time 2
Grayson
T-Rex
VivoActive 4
 FitbitOneRemove Buy NowMichael KorsGraysonRemove Buy NowPebbleTime 2Remove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy NowGarminVivoActive 4Remove Buy Now

Basic Info

Suggested Price$100$350$199$350$140$349
Release201220182016201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration10-14 days24 hours10 days24 hours20 days8 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a453 x 454NA453x454360 x 360260 x 260
Sizen/a1.39 inchesNA1.39 inches1.3 inches1.3ionches
Touch
TypeOLEDAMOLEDe-paperAMOLEDAMOLEDMIP

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceSplast Resistant1 ATM3 ATM1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid WearPebble OSAndroid WearBuild-inWear OS
Apps
Music

All Wearables