Fitbit Flex 2 vs. Apple Watch vs. Garmin Forerunner 235 vs. Apple Series 6 vs. Apple Watch Ultra

 
Flex 2
Watch
Forerunner 235
Series 6
Watch Ultra
 FitbitFlex 2Remove Buy NowAppleWatchRemove Buy NowGarminForerunner 235Remove Buy NowAppleSeries 6Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$349$299.99$399$799
Release20162015201720202022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days18 hours9 daysNot yet36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a340 x 272 or 390 x 312215 x 180384 x 480502x410 pixels
Sizen/a1.5 inches or 1.65 inches1.23 inches40mm1.92 inches
Touchn/a
TypeLEDAMOLEDMIPMicroLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATMIPX75 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aWatch OSWatchOS 5WatchOS 9
Apps
Music

All Wearables