Fitbit Flex 2 vs. Fitbit Ionic vs. Garmin 645 Music vs. Garmin Vivofit 4 vs. Microsoft Band

 
Flex 2
Ionic
645 Music
Vivofit 4
Band
 FitbitFlex 2Remove Buy NowFitbitIonicRemove Buy NowGarmin645 MusicRemove Buy NowGarminVivofit 4Remove Buy NowMicrosoftBandRemove Buy Now

Basic Info

Suggested Price$100$299$450$79.95$200
Release20162017201820182014

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days4+ days7 days1 year2 days
Rechargeable

Compatibility

Android
iOS
Windows Phonen/a
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a348x250240 x 24088 x 88320 x 106
Sizen/a1.421.2 inchesNA1.37 inches
Touchn/a
TypeLEDOLEDMIPNACapacitative TFT

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance5 ATM50m5 ATM5 ATMIP67

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aFitbit OSNA
Apps
Music

Wearables by Microsoft

Microsoft Band 2

All Wearables