Fitbit Flex 2 vs. Withings Pulse Ox vs. Garmin 645 Music vs. Fitbit Versa 2 vs. Xiaomi Mi Band 4

 
Flex 2
Pulse Ox
645 Music
Versa 2
Mi Band 4
 FitbitFlex 2Remove Buy NowWithingsPulse OxRemove Buy NowGarmin645 MusicRemove Buy NowFitbitVersa 2Remove Buy NowXiaomiMi Band 4Remove Buy Now

Basic Info

Suggested Price$100$120$450$199$25
Release20162014201820192019

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 weeks7 days5 days20 days
Rechargeable

Compatibility

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

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/ablue
Resolutionn/a128 x 32240 x 240300 x 300120x240
Sizen/an/a1.2 inches1.34 inches0.95 inches
Touchn/aSwipe
TypeLEDOLEDMIPAMOLEDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

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

Notifications

Phone
Emails
Texts

Software

Operating Systemn/an/aBuild-inAMAZFIT OS
Apps
Music

All Wearables