Fitbit Surge vs. Garmin Forerunner 735XT vs. Fitbit Flex vs. Apple Watch Series 4 vs. Apple Series 6

 
Surge
Forerunner 735XT
Flex
Watch Series 4
Series 6
 FitbitSurgeRemove Buy NowGarminForerunner 735XTRemove Buy NowFitbitFlexRemove Buy NowAppleWatch Series 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$250$450$100$329$399
Release20162016201320182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days14 hours to 11 days5 daysNot YetNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a215 x 180NA384 x 480384 x 480
Size1.26 inches1.23 inchesNA1.78 inches40mm
Touchn/aNA
TypeMonochrome LCDn/aLEDMicroLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM1 ATMNot Yet

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aNAWatch OS 5WatchOS 5
Apps
Music

All Wearables