Fitbit Charge 4 vs. Fitbit Versa 4 vs. Fitbit Zip vs. Polar M600 vs. Polar Unite - Instant Comparison

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Fitbit Charge 4

Fitbit Versa 4

Fitbit Zip

Polar M600

Polar Unite

	Fitbit Charge 4 Check Amazon	Fitbit Versa 4 Check Amazon	Fitbit Zip Check Amazon	Polar M600 Check Amazon	Polar Unite Check Amazon
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Price and Release Date
Suggested Price	$149	$300	$60	$330	$150
Release / Update	2020	2022	2012	2016	2020
Activity & Fitness
Calories
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	7 days	6 days	6 months	2 days	3 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	40,5x40,5		240 x 240	240 x 240
Size	.721 inches	1,58 inches		1.3 inches	1.7 inches
Touch
Type	OLED	AMOLED		TFT	OLED
Functions
Audio Speaker				Alerts only
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	5 ATM	5 ATM (50 Meters)	Splash resistant	IPX8	3 ATM
Notifications
Phone
Emails
Texts
Software
Operating System	Fitbit OS	Fitbit OS	n/a	Android Wear	Built-in
Apps
Music	Spotify control
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