Fitbit Charge vs. Fitbit Flex vs. Polar A370 vs. Garmin Instinct

 
Charge
Flex
A370
Instinct
 FitbitChargeRemove Buy NowFitbitFlexRemove Buy NowPolarA370Remove Buy NowGarminInstinctRemove Buy Now

Basic Info

Suggested Price$130$100$179.95$300
Release2014201320172018

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration7-10 days5 daysUp to 3 days14 days
Rechargeable

Compatibility

Android
iOS
Windows PhoneNANA
Mac
Windows

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Color
ResolutionNANA160 x 80128 x 128
SizeNANA1.18 inches0.9 inches
TouchNANA
TypeOLEDLEDTFT LCDOMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance1 ATM1 ATMWR3010 ATM

Notifications

Phone
Emails
Texts

Software

Operating SystemNANA
Apps
Music

All Wearables