Pebble Time Round vs. Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Fitbit Alta HR vs. Apple Watch Series 4

 
Time Round
Flex 2
Forerunner 935
Alta HR
Watch Series 4
 PebbleTime RoundRemove Buy NowFitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowFitbitAlta HRRemove Buy NowAppleWatch Series 4Remove Buy Now

Basic Info

Suggested Price$200$100$500$150$329
Release20152016201720172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 daysUp to 2 weeks7 daysNot Yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a240 x 240128 x 36384 x 480
Sizeroundn/a1.2 inches1.4 inches1.78 inches
Touchn/a
Typee-paperLEDLCDOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM5 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aWatch OS 5
Apps
Music

All Wearables