Fitbit Charge 4 vs. Fitbit Flex 2 vs. Fitbit Ionic vs. Fitbit Sense vs. Samsung Gear S - Instant Comparison

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Fitbit Charge 4

Fitbit Flex 2

Fitbit Ionic

Fitbit Sense

Samsung Gear S

	Fitbit Charge 4 Check Amazon	Fitbit Flex 2 Check Amazon	Fitbit Ionic Check Amazon	Fitbit Sense Check Amazon	Samsung Gear S Check Amazon
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More Information
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Price and Release Date
Suggested Price	$149	$100	$299	$324	$250
Release / Update	2020	2016	2017	2020	2013
Activity & Fitness
Calories
Distance
Heart
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate
Battery
Duration	7 days	5 days	4+ days	6 Days
Rechargeable

Compatibility Support
Android
iOS
Windows Phone
Mac					n/a
Windows	Not yet				n/a
Connectivity Support
Bluetooth
Cellular
GPS
NFC	Fitbit Pay
Wi-Fi
Display
Color
Resolution	66x18	n/a	348x250	360 x 360	480 x 360
Size	.721 inches	n/a	1.42	1.58 inches	2 inches
Touch		n/a
Type	OLED	LED	OLED	AMOLED	Super AMOLED
Functions
Audio Speaker
Clock
Phone
Vibration
Voice
Hardware
Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water Resistance	5 ATM	5 ATM	50m	5 ATM	IP67
Notifications
Phone
Emails
Texts
Software
Operating System	Fitbit OS	n/a	Fitbit OS	Fitbit OS	Tizen OS
Apps
Music	Spotify control
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