Fitbit Flex 2 vs. Xiaomi Mi Band 2 vs. Diesel On Full Guard 2.5 vs. Garmin Forerunner 45 vs. Apple Watch Ultra

 
Flex 2
Mi Band 2
On Full Guard 2.5
Forerunner 45
Watch Ultra
 FitbitFlex 2Remove Buy NowXiaomiMi Band 2Remove Buy NowDieselOn Full Guard 2.5Remove Buy NowGarminForerunner 45Remove Buy NowAppleWatch UltraRemove Buy Now

Basic Info

Suggested Price$100$23$325$199$799
Release20162016201820192022

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Stepsn/a
Swim

Battery

Duration5 days20 hours4 days7 days36 hrs
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a454x454208 x 208502x410 pixels
Sizen/a0.42 inches1.39 inches1.04 inches1.92 inches
Touchn/a
TypeLEDOLEDLCD

Functions

Audio Speaker
ClockLTPO OLED Retina
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMIP673 ATM5 ATM10 ATM (100 Meters)

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aWear OSBuilt-inWatchOS 9
Apps
Music

All Wearables