Fitbit Charge 4 vs. Fitbit Charge 6 vs. Garmin 645 Music vs. Garmin Forerunner 45 vs. Polar V800 - Instant Comparison

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Fitbit Charge 4

Fitbit Charge 6

Garmin 645 Music

Garmin Forerunner 45

Polar V800

	Fitbit Charge 4 Check Amazon	Fitbit Charge 6 Check Amazon	Garmin 645 Music Check Amazon	Garmin Forerunner 45 Check Amazon	Polar V800 Check Amazon
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Price and Release Date
Suggested Price	$149	$159	$450	$150	$470
Release / Update	2020	2023	2018	2020	2014
Activity & Fitness
Calories
Distance
Heart					$
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	7 days	Up to 7 days	7 days	7 days	13 hours to 30 days
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac
Windows	Not yet
Connectivity Support
Bluetooth
Cellular
GPS
NFC	Fitbit Pay
Wi-Fi
Display
Color
Resolution	66x18		240 x 240	126 x 294
Size	.721 inches	1.04-inch AMOLED	1.2 inches	1.1 inches
Touch
Type	OLED	AMOLED	MIP	AMOLED
Functions
Audio Speaker					Alerts only
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	5 ATM	Water-resistant up to 50m	5 ATM	5 ATM	3 ATM
Notifications
Phone
Emails
Texts
Software
Operating System	Fitbit OS	Fitbit OS		Built-in	n/a
Apps
Music	Spotify control
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