Apple Apple Watch Ultra 2 (II) vs. Apple Watch 7 vs. Garmin Forerunner 255 vs. Garmin Vivoactive 5 vs. Garmin Vivosmart 3

	Apple Apple Watch Ultra 2 (II) Check Amazon	Apple Watch 7 Check Amazon	Garmin Forerunner 255 Check Amazon	Garmin Vivoactive 5 Check Amazon	Garmin Vivosmart 3 Check Amazon
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Price and Release Date
Suggested Price	$799	$429	$400	$299	$139.99
Release / Update	2023	2021	2022	2023	2017
Activity & Fitness
Calories
Distance
Heart	Third-generation optical heart sensor
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	Up to 36 hours normal use, Up to 72 hours in Low Power Mode	18 Hours	14 days	Up to 11 days in smartwatch mode, 5 days with Always-on display, 21 days in battery saver mode, up to 21 hours in GPS mode	5 days
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac
Windows
Connectivity Support
Bluetooth
Cellular
GPS
NFC
Wi-Fi
Display
Color
Resolution	502 x 410 pixels	396 x 484	260x260	390 x 390 pixels	64 x 128
Size	49mm	1.9 inches	1.3 inches	1.2"
Touch
Type	Always-On Retina LTPO OLED	MicroLED	AMOLED	AMOLED	OLED
Functions
Audio Speaker
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	Water resistance 100m, Dust resistance IP6X, EN13319 recreational scuba diving to 40m, Tested to MIL-STD 810H	water resistant but not waterproof	5 ATM (50 Meters)	5 ATM (50 Meters)	5 ATM
Notifications
Phone
Emails
Texts
Software
Operating System	WatchOS 10	WatchOS 8	Built-in	Garmin Watch OS
Apps
Music
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