Fitbit Charge 2 vs. Diesel On Full Guard vs. Garmin Forerunner 235 vs. Fitbit Flex vs. Apple Watch Ultra

 
Charge 2
On Full Guard
Forerunner 235
Flex
Watch Ultra
 FitbitCharge 2Remove Buy NowDieselOn Full GuardRemove Buy NowGarminForerunner 235Remove Buy NowFitbitFlexRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$150$325$299.99$100$799
Release20162017201720132022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days1 day9 days5 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/a454 x 454215 x 180NA502x410 pixels
Sizen/a1.4 inches1.23 inchesNA1.92 inches
Touchn/aNA
TypeOLEDOMOLEDMIPLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/aIP675 ATM1 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aAndroid Wear 2.0NAWatchOS 9
Apps
Music

All Wearables