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All Apple Apple Watch Ultra 2 vs. Apple Watch 4 vs. Apple Watch 7 vs. Fitbit Charge 4 vs. Fitbit Charge 6 vs. Fitbit Versa 4 vs. Garmin Enduro vs. Garmin Forerunner 255 vs. Garmin Vivoactive 5 vs. Polar A370 vs. Samsung Galaxy Watch 4
Apple Apple Watch Ultra 2 Apple Watch 4 Apple Watch 7 Fitbit Charge 4 Fitbit Charge 6 Fitbit Versa 4 Garmin Enduro Garmin Forerunner 255 Garmin Vivoactive 5 Polar A370 Samsung Galaxy Watch 4

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Price and Release Date

Suggested Price$799$329$429$149$159$300$799$400$299$179.95$250
Release / Update20232018202120202023202220212022202320172021

Activity & Fitness

Calories
Distance
HeartThird-generation optical heart sensor
VO2max (Oxygen)
Sleep
Steps
Stress mgt
Female health
Skin temp
Breath rate

Battery

DurationUp to 36 hours normal use, Up to 72 hours in Low Power ModeNot yet18 Hours7 daysUp to 7 days6 days50 Days / Solar Charge14 daysUp to 11 days in smartwatch mode, 5 days with Always-on display, 21 days in battery saver mode, up to 21 hours in GPS modeUp to 3 days40 Hours
Rechargeable

Compatibility Support

Android
iOS
Windows Phone
Mac
WindowsNot yet

Connectivity Support

Bluetooth
Cellular
GPS
NFCFitbit Pay
Wi-Fi

Display

Color
Resolution502 x 410 pixels384 x 480396 x 48466x1840,5x40,5 280 x 280260x260390 x 390 pixels160 x 80396 x 396
Size49mm1.78 inches1.9 inches.721 inches1.04-inch AMOLED1,58 inches1.4 inches1.3 inches1.2"1.18 inches1.9 inches
Touch
TypeAlways-On Retina LTPO OLEDMicroLEDMicroLEDOLEDAMOLEDAMOLEDMIP LCDAMOLEDAMOLEDTFT LCDAMOLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor
Water ResistanceWater resistance 100m, Dust resistance IP6X, EN13319 recreational scuba diving to 40m, Tested to MIL-STD 810HNot yetwater resistant but not waterproof5 ATMWater-resistant up to 50m5 ATM (50 Meters)10 ATM (100 Meters)5 ATM (50 Meters)5 ATM (50 Meters)WR305 ATM (50 Meters)

Notifications

Phone
Emails
Texts

Software

Operating SystemWatchOS 10WatchOS 5WatchOS 8Fitbit OSFitbit OSFitbit OSBuilt-inBuilt-inGarmin Watch OSWear OS 3
Apps
MusicSpotify control

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