Pebble Time Round vs. Fitbit Flex 2 vs. Amazfit Stratos vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Amazfit T-Rex

 
Time Round
Flex 2
Stratos
Grayson
Grayson
T-Rex
 PebbleTime RoundRemove Buy NowFitbitFlex 2Remove Buy NowAmazfitStratosRemove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAmazfitT-RexRemove Buy Now

Basic Info

Suggested Price$200$100$199$350$350$140
Release201520162018201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days5 days24 hours24 hours20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a320 x 300453 x 454453x454360 x 360
Sizeroundn/a1.34 inches1.39 inches1.39 inches1.3 inches
Touchn/a
Typee-paperLEDOLEDAMOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM5 ATM1 ATM1 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aProprietaryAndroid WearAndroid WearBuild-in
Apps
Music

All Wearables