Fitbit Flex 2 vs. Fitbit One vs. Garmin Forerunner 45 vs. Xiaomi Mi Band 4

 
Flex 2
One
Forerunner 45
Mi Band 4
 FitbitFlex 2Remove Buy NowFitbitOneRemove Buy NowGarminForerunner 45Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$100$100$199$25
Release2016201220192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days10-14 days7 days20 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/an/a
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/an/a208 x 208120x240
Sizen/an/a1.04 inches0.95 inches
Touchn/a
TypeLEDOLEDLCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATMSplast Resistant5 ATM5 ATM

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuilt-inAMAZFIT OS
Apps
Music

All Wearables