Apple Watch Ultra 3 vs Samsung Galaxy Watch8 Classic 46mm

The two products' specifications row by row. Rows where they differ are marked; a missing value is unknown, never equal.

5 differences
SpecificationApple Watch Ultra 3Samsung Galaxy Watch8 Classic 46mm
Watch case materialDiffersTitaniumAluminium
Water resistanceDiffersWR1005 ATM
Display brightnessDiffers3000 nits600 cd/m²
Display technologyDiffersOLEDAMOLED
Battery life (max)Differs42 h40 h
Heart rate monitorSameYesYes
Back materialnot knownnot knownSapphire glass
Band sizenot knownnot knownMedium/Large 145mm to 205mm
Colour displaynot knownnot knownYes
Display typenot knownnot knownDigital
Market positioningnot knownnot knownSmartwatch
Watch case sizenot knownnot known46 mm
Watch glass typenot knownSapphire crystalnot known
Always-on displaynot knownnot knownYes
Display diagonalnot knownnot known3.3 cm (1.3")
Display number of coloursnot knownnot known16 million colours
Display resolutionnot knownnot known438 x 438 pixels
Display technology marketing namenot knownnot knownSuper AMOLED
Pixel densitynot knownnot known327 ppi
Touchscreennot knownnot knownYes
Activity trackernot knownnot knownYes
Calendarnot knownnot knownYes
Closure typenot knownnot knownSingle prong strap buckle
Heart rate sensor typenot knownnot knownOptical
Quality of sleepnot knownnot knownYes
Shapenot knownnot knownRound
Bluetoothnot knownnot knownYes
Bluetooth versionnot knownnot known5.3
Mobile network connectionnot knownnot knownNo
Near Field Communication (NFC)not knownnot knownYes
Wi-Finot knownnot knownYes
Wi-Fi standardsnot knownnot known802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n)
BeiDounot knownnot knownYes
Galileonot knownnot knownYes
GLONASSnot knownnot knownYes
GPS (satellite)not knownnot knownYes
Flash memorynot knownnot known64 GB
RAM capacitynot knownnot known2000 MB
Wireless chargingnot knownnot knownYes
Wireless chipsetnot knownS10not known
Accelerometernot knownnot knownYes
Barometernot knownnot knownYes
Geomagnetic sensornot knownnot knownYes
Gyroscopenot knownnot knownYes
Depthnot knownnot known46 mm
Thicknessnot knownnot known1.06 cm
Weightnot knownnot known63.5 g
Widthnot knownnot known46.4 mm
Battery capacitynot knownnot known445 mAh
Battery typenot knownnot knownBuilt-in battery
Processor coresnot knownnot known5
Processor manufacturernot knownnot knownSamsung
Processor modelnot knownnot knownExynos W1000
Operating system installednot knownnot knownWear OS
Sports activity appsnot knownnot knownSamsung Health
Virtual assistantnot knownnot knownSamsung Bixby
Audio formats supportednot knownnot known3GA, AAC, AMR, AWB, M4A, MP3, OGA, OGG, WAV
Built-in speaker(s)not knownnot knownYes
Battery life (power save mode)not known72 hnot known
Charging timenot knownnot known1.3 h
Built-in microphonenot knownnot knownYes
International Protection (IP) codenot knownnot knownIP68
Activity measurementsnot knownDual-frequency GPSnot known
Military standardnot knownnot knownMIL-STD-810H