Garmin Forerunner 735XT vs. Fitbit Flex 2 vs. Garmin Fenix 5s vs. Garmin Vivofit 4 vs. Apple Series 6

 
Forerunner 735XT
Flex 2
Fenix 5s
Vivofit 4
Series 6
 GarminForerunner 735XTRemove Buy NowFitbitFlex 2Remove Buy NowGarminFenix 5sRemove Buy NowGarminVivofit 4Remove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$450$100$599.99$79.95$399
Release20162016201720182020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration14 hours to 11 days5 daysUp to 9 days1 yearNot yet
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolution215 x 180n/a218x 21888 x 88384 x 480
Size1.23 inchesn/a1.1 inchesNA40mm
Touchn/an/a
Typen/aLEDnaNAMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM5 ATM10ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWatchOS 5
Apps
Music

All Wearables