Fitbit Surge vs. Garmin Forerunner 735XT vs. Fitbit Flex 2 vs. ASUS ZenWatch 3 vs. Apple Series 6

 
Surge
Forerunner 735XT
Flex 2
ZenWatch 3
Series 6
 FitbitSurgeRemove Buy NowGarminForerunner 735XTRemove Buy NowFitbitFlex 2Remove Buy NowASUSZenWatch 3Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$250$450$100$229$399
Release20162016201620172020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days14 hours to 11 days5 days48 hoursNot yet
Rechargeable

Compatibility

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

Connectivity

BluetoothYes
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a215 x 180n/a400 x 400384 x 480
Size1.26 inches1.23 inchesn/a1.39 inches40mm
Touchn/an/a
TypeMonochrome LCDn/aLEDAMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/an/aAndroid Wear 2WatchOS 5
Apps
Music

All Wearables