Fitbit Flex 2 vs. Fitbit Ionic vs. Amazfit Stratos vs. Michael Kors Grayson vs. Diesel On Full Guard 2.5 vs. Michael Kors Grayson

 
Flex 2
Ionic
Stratos
Grayson
On Full Guard 2.5
Grayson
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowAmazfitStratosRemove Buy NowMichael KorsGraysonRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowMichael KorsGraysonRemove Buy Now

Basic Info

Suggested Price$100$299$199$350$325$350
Release201620172018201820182018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days5 days24 hours4 days24 hours
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250320 x 300453 x 454454x454453x454
Sizen/a1.421.34 inches1.39 inches1.39 inches1.39 inches
Touchn/a
TypeLEDOLEDOLEDAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM1 ATM3 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSProprietaryAndroid WearWear OSAndroid Wear
Apps
Music

All Wearables