Amazfit Stratos vs. Apple Apple Watch Ultra 2 (II) vs. Fitbit Charge 2 vs. Garmin Forerunner 955 vs. Garmin Vivofit 3 vs. Huawei TalkBand B2 vs. Polar V800

	Amazfit Stratos Check Amazon	Apple Apple Watch Ultra 2 (II) Check Amazon	Fitbit Charge 2 Check Amazon	Garmin Forerunner 955 Check Amazon	Garmin Vivofit 3 Check Amazon	Huawei TalkBand B2 Check Amazon	Polar V800 Check Amazon
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Price and Release Date
Suggested Price	$199	$799	$150	$600	$100	$180	$470
Release / Update	2018	2023	2016	2022	2016	2015	2014
Activity & Fitness
Calories
Distance
Heart		Third-generation optical heart sensor			$		$
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	5 days	Up to 36 hours normal use, Up to 72 hours in Low Power Mode	5 days	15 days	1 year	6 days	13 hours to 30 days
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac					n/a	n/a
Windows					n/a	n/a
Connectivity Support
Bluetooth
Cellular
GPS
NFC
Wi-Fi
Display
Color
Resolution	320 x 300	502 x 410 pixels		260x260	64 x 64	128 x 88
Size	1.34 inches	49mm		1.3 inches	0.55 inches	0.73 inches
Touch			n/a
Type	OLED	Always-On Retina LTPO OLED	OLED	OLED		PMOLED
Functions
Audio Speaker						Bluetooth	Alerts only
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		5 ATM (50 Meters)	5 ATM	IP57	3 ATM
Notifications
Phone
Emails
Texts
Software
Operating System	Propriertary	WatchOS 10	n/a	Built-in	n/a	n/a	n/a
Apps
Music
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