Amazfit GTS vs. Fitbit Charge 2 vs. Garmin Forerunner 735XT vs. Garmin Garmin Forerunner 965 vs. Garmin Vivoactive 3 vs. Garmin Vivofit 4 vs. Polar Loop 2 vs. Samsung Gear S3

	Amazfit GTS Check Amazon	Fitbit Charge 2 Check Amazon	Garmin Forerunner 735XT Check Amazon	Garmin Garmin Forerunner 965 Check Amazon	Garmin Vivoactive 3 Check Amazon	Garmin Vivofit 4 Check Amazon	Polar Loop 2 Check Amazon	Samsung Gear S3 Check Amazon
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Price and Release Date
Suggested Price	$150	$150	$450	$749	$299.99	$79.99	$120	$350
Release / Update	2019	2016	2016	2023	2017	2018	2015	2016
Activity & Fitness
Calories
Distance
Heart							$
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	14 days	5 days	14 hours to 11 days	Up to 12 days in smartwatch mode, Up to 32 hours in GPS mode, Up to 20 hours in GPS mode with music	7 days	1 year	8 days (without notifications)	4 days
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac			n/a				n/a
Windows			n/a				n/a
Connectivity Support
Bluetooth
Cellular								Yes +$
GPS
NFC
Wi-Fi
Display
Color
Resolution	348 x 442		215 x 180	465 x 465 pixels	240 x 240	88 x 88		360 x 360
Size	1.65 inches		1.23 inches	1.4 inches	1.2 inches	NA		1.3 inches
Touch		n/a
Type	AMOLED	OLED		Sunlight-visible, transflective memory-in-pixel (MIP)	MIP	NA	LED	Fullcolor AOD
Functions
Audio Speaker
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	5 ATM		5 ATM	10 ATM (100 meters)	5 ATM	5 ATM	2 ATM	IP68
Notifications
Phone
Emails
Texts
Software
Operating System	Wear OS	n/a	n/a	Garmin Watch OS			n/a	Tizen OS
Apps
Music								Spotify
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