Pebble Time Round vs. Polar M400 vs. Garmin Vivosmart vs. Garmin Forerunner 235 vs. Fitbit Flex

 
Time Round
M400
Vivosmart
Forerunner 235
Flex
 PebbleTime RoundRemove Buy NowPolarM400Remove Buy NowGarminVivosmartRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy Now

Basic Info

Suggested Price$200$200$170$299.99$100
Release20152014201420172013

Activity & Fitness

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

Battery

Duration2 days8 hours to 30 days7 days9 days5 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a128 x 16215 x 180NA
Sizeroundn/a1.41 inches1.23 inchesNA
TouchNA
Typee-papern/aOLEDMIPLED

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX73 ATM5 ATM5 ATM1 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/an/aNA
Apps
Music

All Wearables