Fitbit Surge vs. Fitbit Flex vs. Diesel On Full Guard 2.5 vs. Fitbit Inspire HR vs. Apple Watch Ultra

 
Surge
Flex
On Full Guard 2.5
Inspire HR
Watch Ultra
 FitbitSurgeRemove Buy NowFitbitFlexRemove Buy NowDieselOn Full Guard 2.5Remove Buy NowFitbitInspire HRRemove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$250$100$325$99$799
Release20162013201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7 days5 days4 days5 days36 hrs
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA454x454139 x 60502x410 pixels
Size1.26 inchesNA1.39 inches1.4 inches1.92 inches
TouchNA
TypeMonochrome LCDLEDOLED

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM1 ATM3 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWear OSFitbit OSWatchOS 9
Apps
Music

All Wearables