Apple Watch Ultra vs Samsung Galaxy Watch 3 45mm

Apple Watch Ultra

Samsung Galaxy Watch 3 45mm

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700(AWS), 1900, 2100 - global version, China; 850, 1700(AWS), 1900, 2100 - USA, LATAM, Canada

HSDPA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 6, 7, 8, 18, 19, 20, 25, 26, 28, 39, 40, 41, 66 - global version, China, Hong Kong; 1, 2, 3, 4, 5, 6, 7, 12, 13, 14, 17, 18, 19, 25, 26, 39, 40, 41, 66 - USA, LATAM, Canada

LTE frequency band 1, 3, 5, 7, 8, 20
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-

Design
Build

Sapphire crystal front, ceramic/sapphire crystal back, titanium frame

Glass front (Gorilla Glass DX), stainless steel frame 316L or titanium frame
SIM

eSIM

eSIM
Height

49 mm

46.2 mm
Width

44 mm

45 mm
Thickness

14.4 mm

11.1 mm
Weight

61.3 g

53.8 g
Payment

-

Samsung Pay
Waterproof

IP6X (100m)

IP68, 50m
Dust proof

IP6X

-
MIL-STD-810G

-

Yes
MIL-STD-810H

Yes

-
Colors

Titanium

Black, Silver

Display
Display type

Retina LTPO OLED

Super AMOLED
Physical size

1.92 inches

1.4 inches
Resolution

502 x 410 pixels

360 x 360 pixels
Pixel density

338 ppi

364 ppi
Display colors

-

16777216
Protection

Sapphire crystal glass

Corning Gorilla Glass DX
Display features

Always-on display, 2000 nits (peak)

Rotating bezel, Always-on display

Features
Sensors

Accelerometer, always-on altimeter, barometer, compass, gyro, heart rate, SpO2, temperature (body), temperature(water), VO2max

Accelerometer, barometer, gyro, heart rate