Pebble Time Round vs. Casio WSD-F20A vs. Fitbit Flex vs. Garmin Vivosmart 4 vs. Amazfit GTR

 
Time Round
WSD-F20A
Flex
Vivosmart 4
GTR
 PebbleTime RoundRemove Buy NowCasioWSD-F20ARemove Buy NowFitbitFlexRemove Buy NowGarminVivosmart 4Remove Buy NowAmazfitGTRRemove Buy Now

Basic Info

Suggested Price$200$399$100$130$199
Release20152018201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days1 day5 days7 days24 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a320 x 320NA48 x 128454 x 454
Sizeround1.32 inchesNA0.74 inches1.39 inches
TouchNA
Typee-paperLCDLEDOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSWear OSNABuild-in
Apps
Music

All Wearables