Fitbit Alta vs. Fitbit Charge 2 vs. Microsoft Band 2 vs. Polar A370 vs. Garmin Vivosmart 4

 
Alta
Charge 2
Band 2
A370
Vivosmart 4
 FitbitAltaRemove Buy NowFitbitCharge 2Remove Buy NowMicrosoftBand 2Remove Buy NowPolarA370Remove Buy NowGarminVivosmart 4Remove Buy Now

Basic Info

Suggested Price$130$150$250$179.95$130
Release20162016201520172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days5 days48 hours (without GPS)Up to 3 days7 days
Rechargeable

Compatibility

Android
iOS
Windows Phone
Macn/a
Windowsn/a

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
Resolutionn/an/a320 x 128160 x 8048 x 128
Sizen/an/a1.36 inches1.18 inches0.74 inches
Touchn/an/a
TypeOLEDOLEDCapacitative TFTTFT LCDOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistancen/an/aIPX7WR305 ATM

Notifications

Phone
Emailsn/a
Texts

Software

Operating Systemn/an/an/a
Apps
Music

All Wearables