Pebble Time Round vs. Polar M400 vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Jawbone UP4

 
Time Round
M400
Forerunner 235
Flex
UP4
 PebbleTime RoundRemove Buy NowPolarM400Remove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowJawboneUP4Remove Buy Now

Basic Info

Suggested Price$200$200$299.99$100$200
Release20152014201720132015

Activity & Fitness

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

Battery

Duration2 days8 hours to 30 days9 days5 daysNA
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a215 x 180NANA
Sizeroundn/a1.23 inchesNANA
TouchNANA
Typee-papern/aMIPLEDNA

Functions

Audio SpeakerAlerts only
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX73 ATM5 ATM1 ATMNA

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aNANA
Apps
MusicNA

All Wearables