Fitbit Charge 2 vs. Fitbit Flex vs. Xiaomi Mi Band 3 vs. Garmin Forerunner 45

 
Charge 2
Flex
Mi Band 3
Forerunner 45
 FitbitCharge 2Remove Buy NowFitbitFlexRemove Buy NowXiaomiMi Band 3Remove Buy NowGarminForerunner 45Remove Buy Now

Basic Info

Suggested Price$150$100$44.95$199
Release2016201320182019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days20 days7 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/aNA128 x 80208 x 208
Sizen/aNA0.78 inches1.04 inches
Touchn/aNA
TypeOLEDLEDOLEDLCD

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/a1 ATM5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNABuilt-in
Apps
Music

All Wearables