Amazfit Cor vs. Apple Apple Watch Ultra 2 (II) vs. ASUS ZenWatch 2 vs. Fitbit Charge 4 vs. Fitbit Versa vs. Jaybird Reign vs. Nokia (Withings) Go

	Amazfit Cor Check Amazon	Apple Apple Watch Ultra 2 (II) Check Amazon	ASUS ZenWatch 2 Check Amazon	Fitbit Charge 4 Check Amazon	Fitbit Versa Check Amazon	Jaybird Reign Check Amazon	Nokia (Withings) Go Check Amazon
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Price and Release Date
Suggested Price	$79.99	$799	$150	$149	$199.95	$150	$80
Release / Update	2018	2023	2015	2020	2018	2015	2016
Activity & Fitness
Calories
Distance
Heart		Third-generation optical heart sensor
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	12 days	Up to 36 hours normal use, Up to 72 hours in Low Power Mode		7 days	4 days	5 days	8 months
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac			n/a
Windows			n/a	Not yet
Connectivity Support
Bluetooth
Cellular
GPS
NFC				Fitbit Pay
Wi-Fi
Display
Color
Resolution	80 x 160	502 x 410 pixels	320 x 320	66x18	300 x 300	n/a
Size	1.23 inches	49mm	1.63 inches or 1.45 inch	.721 inches	1.34 inches	n/a
Touch						n/a
Type	IPS LCD	Always-On Retina LTPO OLED	AMOLED	OLED	OLED	LED	E-Ink
Functions
Audio Speaker
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	5 ATM	Water resistance 100m, Dust resistance IP6X, EN13319 recreational scuba diving to 40m, Tested to MIL-STD 810H	IP67	5 ATM	5 ATM		5 ATM
Notifications
Phone
Emails
Texts
Software
Operating System		WatchOS 10	Android Wear 2	Fitbit OS		n/a	n/a
Apps
Music				Spotify control
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