WatchFitTool

Samsung Galaxy Watch Ultra vs Galaxy Watch6 Classic Wi-Fi 47mm

Size, specs & wrist fit compared

Samsung Galaxy Watch Ultra
Samsung Galaxy Watch Ultra
Samsung Galaxy Watch6 Classic Wi-Fi 47mm
Samsung Galaxy Watch6 Classic Wi-Fi 47mm

Which one fits you

Under 17 cm (6.7 in) round, the Galaxy Watch Ultra's lugs overhang and the Galaxy Watch6 Classic Wi-Fi 47mm's do not; the Galaxy Watch6 Classic Wi-Fi 47mm fills the wrist at 17.5–19.5 cm, the Galaxy Watch Ultra at 18–20 cm.

What else differs

  • Battery: 4 days for the Galaxy Watch Ultra against 38.4 hours for the Galaxy Watch6 Classic Wi-Fi 47mm in everyday use.
  • Only the Galaxy Watch Ultra has an LTE version.

The Galaxy Watch Ultra is thinner than 87% of the 60 smartwatches 47mm across that we hold thickness for, the Galaxy Watch6 Classic Wi-Fi 47mm is thinner than 87% — so both wear flatter than their widths suggest.

The Galaxy Watch Ultra is 0.9mm wider, 1.2mm thicker and 1.5g heavier than the Galaxy Watch6 Classic Wi-Fi 47mm.

Galaxy Watch Ultra

Galaxy Watch6 Classic Wi-Fi 47mm

Case width
47.4mm
46.5mm−0.9mm
Thickness
12.1mm
10.9mm−1.2mm
Weight
60.5g
59g−1.5g

Galaxy Watch Ultra or Galaxy Watch6 Classic Wi-Fi 47mm by wrist size

Wrist round (mm left each side)Galaxy Watch Ultra≈54.5mm lug to lug, est.Galaxy Watch6 Classic Wi-Fi 47mm≈53.5mm lug to lug, est.
14 cm / 5.5 inOverhangs (4.7mm over)Overhangs (4.2mm over)
15 cm / 5.9 inOverhangs (3.1mm over)Overhangs (2.6mm over)
16 cm / 6.3 inOverhangs (1.4mm over)Overhangs (0.9mm over)
17 cm / 6.7 inBold (0.2mm)Bold (0.7mm)
18 cm / 7.1 inSweet spot (1.8mm)Sweet spot (2.3mm)
19 cm / 7.5 inSweet spot (3.4mm)Sweet spot (3.9mm)
20 cm / 7.9 inBalanced (5mm)Balanced (5.5mm)

How the fit model works · Size chart for every wrist

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Samsung Galaxy Watch Ultra

Samsung

Galaxy Watch Ultra

Samsung Galaxy Watch6 Classic Wi-Fi 47mm

Samsung

Galaxy Watch6 Classic Wi-Fi 47mm

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Battery life compared

Watch UltraWatch6 Classic Wi-Fi 47mm

  • Battery saver

    100 hours
    —
  • Smartwatch

    4 days
    —
  • Heavy use

    48 hours
    —
  • Battery life

    —
    1.6 days

More comparisons

2D Dimension Schematics

Top view
Side view
  • Samsung Galaxy Watch Ultra 47.4mm × ≈54.5mm (est.) · 12.1mm thick
  • Samsung Galaxy Watch6 Classic Wi-Fi 47mm 46.5mm × ≈53.5mm (est.) · 10.9mm thick

3D preview

Galaxy Watch Ultra vs Galaxy Watch6 Classic Wi-Fi 47mm on a wrist

Open 3D try-on

Specifications

The short version

10 key specs
SpecSamsungGalaxy Watch UltraSamsungGalaxy Watch6 Classic Wi-Fi 47mm
Case Width47.4mm46.5mm
Thickness12.1mm10.9mm
Weight60.5g59g
ShapeCircularCircular
Water Resistance10 ATM5 ATM
GPSYesYes
Display typeOLED/AMOLEDOLED/AMOLED
Screen size1.5 inches1.5 inches
Battery life4 days1.6 days
Released20242023

Where the specifications differ

20 differences
SpecSamsung Galaxy Watch UltraSamsung Galaxy Watch6 Classic Wi-Fi 47mm
Design
width47.446.5
height47.446.5
volume27.19 cm³23.57 cm³
weight60.5 g59 g
thickness12.110.9
ATM rating10 ATM5 ATM
pixel density327 ppi453 ppi
maximum altitude29527 feet20029 feet
waterproof depth rating100 m50 m
maximum operating temperature55 °C35 °C
Battery
battery life4 days1.6 days
battery power590 mAh425 mAh
Features
release date2024-07-102023-07-26
has HRV trackingYesNo
internal storage32GB16GB
Acquires GPS fasterYesNo
shows readiness levelYesNo
Connectivity
Wi-Fi versionWi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)Wi-Fi 4 (802.11n)
Bluetooth version5.45.3
has a cellular moduleYesNo

The other 88 specifications both list are identical.

Full Samsung Galaxy Watch Ultra specifications →Full Samsung Galaxy Watch6 Classic Wi-Fi 47mm specifications →