Pebble Time Round vs. Fitbit Flex 2 vs. Casio G-Shock GBA800 vs. Garmin 645 Music vs. Garmin Forerunner 45

 
Time Round
Flex 2
G-Shock GBA800
645 Music
Forerunner 45
 PebbleTime RoundRemove Buy NowFitbitFlex 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarmin645 MusicRemove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$200$100$120$450$199
Release20152016201820182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration2 days5 days2 years7 days7 days
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 240208 x 208
Sizeroundn/a1.2 inches1.04 inches
Touchn/a
Typee-paperLEDMIPLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceIPX75 ATM20 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemPebble OSn/aBuilt-in
Apps
Music

All Wearables