Fitbit Flex 2 vs. Garmin Forerunner 935 vs. Garmin Vivosmart 3 vs. Garmin Vivosmart 4 vs. Apple Watch Ultra

 
Flex 2
Forerunner 935
Vivosmart 3
Vivosmart 4
Watch Ultra
 FitbitFlex 2Remove Buy NowGarminForerunner 935Remove Buy NowGarminVivosmart 3Remove Buy NowGarminVivosmart 4Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$500$139.99$130$799
Release20162017201720182022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 daysUp to 2 weeks5 days7 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a240 x 24064 x 12848 x 128502x410 pixels
Sizen/a1.2 inchesNA0.74 inches1.92 inches
Touchn/a
TypeLEDLCDOLEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM5 ATM5 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatchOS 9
Apps
Music

All Wearables