Fitbit Surge vs. Pebble Time Round vs. Polar M400 vs. Michael Kors Grayson vs. Michael Kors Grayson vs. Apple Watch 7

 
Surge
Time Round
M400
Grayson
Grayson
Watch 7
 FitbitSurgeRemove Buy NowPebbleTime RoundRemove Buy NowPolarM400Remove Buy NowMichael KorsGraysonRemove Buy NowMichael KorsGraysonRemove Buy NowAppleWatch 7Remove Buy Now

Basic Info

Suggested Price$250$200$200$350$350$429
Release201620152014201820182021

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heartn/a
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days2 days8 hours to 30 days24 hours24 hours18 Hours
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/an/a453 x 454453x454396 x 484
Size1.26 inchesroundn/a1.39 inches1.39 inches1.9 inches
Touch
TypeMonochrome LCDe-papern/aAMOLEDAMOLEDMicroLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIPX73 ATM1 ATM1 ATMwater resistant but not waterproof

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aPebble OSn/aAndroid WearAndroid WearWatchOS 8
Apps
Music

All Wearables