Device summary

Samsung

Galaxy S24 Ultra

Apple

iPhone 18 Pro Max

Full specifications

Full specifications
Basic information
Release year20242026
Starting price—$1,299
Display size6.8-inch6.9-inch
Dimensions79.0 mm × 162.3 mm × 8.6 mm78.0 mm × 163.4 mm × 8.8 mm
Weight232 g249 g
Front materialCorning Gorilla Glass ArmorCeramic Shield 2
Back material—Ceramic Shield
Display
Display technologyDynamic AMOLED 2XSuper Retina XDR OLED
Resolution3120 × 14402868 × 1320
Refresh rate120 Hz120 Hz
Peak brightness2600 nits3000 nits
ProtectionCorning Gorilla Glass ArmorCeramic Shield 2
Performance
ChipsetSnapdragon 8 Gen 3 Mobile Platform for GalaxyApple A20 Pro
RAM12 GB—
Storage256 GB, 512 GB, 1024 GB256 GB, 512 GB, 1024 GB, 2048 GB
Expandable storage—No
Cameras
Main cameraWide · 200 MP · ƒ/1.7 · OISFusion Main · 48 MP · ƒ/1.48–ƒ/4.0 · 24 mm · Second-generation sensor-shift OIS
Ultra-wide cameraUltra-wide · 12 MP · ƒ/2.2Fusion Ultra Wide · 48 MP · ƒ/2.2 · 13 mm
Telephoto cameraTelephoto · 50 MP · ƒ/3.4 · 5x · OISFusion Telephoto · 48 MP · ƒ/2.8 · 100 mm · 4× optical zoom · 3D sensor-shift OIS
Rear camera 4Telephoto · 10 MP · ƒ/2.4 · 3x · OIS—
Front camerasSelfie · 12 MP · ƒ/2.2Center Stage · 18 MP · ƒ/1.9
Video recording—4K Dolby Vision up to 120 fps, ProRes up to 4K at 120 fps
Battery & charging
Wired charging45 W—
Wireless charging—25 W
Charging standardPDUSB-C, MagSafe up to 25W, Qi2 up to 25W
Video playback (Manufacturer claim)—45 h
Streamed video (Manufacturer claim)—40 h
Battery type—Built-in rechargeable lithium-ion
Typical capacity5000 mAh—
Rated capacity4855 mAh—
Connectivity
Cellular5G, LTE5G (sub-6 GHz and mmWave), Gigabit LTE
Wi‑FiWi-Fi 7Wi‑Fi 7 (802.11be)
BluetoothBluetooth 5.3Bluetooth 6
eSIMYesYes
USB—USB-C (USB 3, up to 10Gb/s)
NFC—Yes
Satellite—Emergency SOS via satellite
Build & durability
FrameTitaniumAluminum unibody
Ingress protectionIP68IP68

Key differences

The most meaningful measured gaps in size and weight — not an overall winner.

  • Weight

    Galaxy S24 Ultra

    17 g lighter

  • Height

    iPhone 18 Pro Max

    1.1 mm taller · minor difference

  • Width

    Galaxy S24 Ultra

    1 mm wider · minor difference

  • Thickness

    Very similar thickness

What these size differences mean

Calculated from the dimensions shown, rounded to 0.1 mm and 1 g. Percentages use the smaller measurement as the reference. Fold and rotation settings affect the dimensions compared.

  • Galaxy S24 Ultra is 1 mm (1.3% relative to iPhone 18 Pro Max) wider. Check this difference against the width of your current device and pocket opening.
  • iPhone 18 Pro Max is 1.1 mm (0.7% relative to Galaxy S24 Ultra) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
  • iPhone 18 Pro Max is 0.2 mm (2.3% relative to Galaxy S24 Ultra) thicker. Cases and camera protrusions can change the clearance you need.
  • Galaxy S24 Ultra is 17 g lighter. This is the listed device-weight difference, not a measured comfort rating.

Use these figures to compare physical size. They do not establish one-handed reach, pocket fit, durability or an overall winner.

Size in everyday life

Picture it in your front pocket.

Front pocket reference

2018 US jeans study · 20 brands · 80 pairs · Approx. 32-inch waists

Galaxy S24 Ultra

iPhone 18 Pro Max

Sources and measurement notes

Sizometry compares published specifications and calculates differences. These are not hands-on measurements or tests of comfort, performance or pocket fit.

Check the exact model, year, region and configuration on the linked page. References may cover several variants. Folded and unfolded dimensions differ; cases and camera protrusions may change the space a device needs. Drawings share a relative scale and are not calibrated to life size on your screen.

Galaxy S24 Ultra vs iPhone 18 Pro Max Size Comparison

User Experience Summary

Galaxy S24 Ultra

Strengths

  • Camera system remains one of the most versatile on any Android phone
  • Snapdragon 8 Gen 3 for Galaxy still feels fast after more than two years
  • Bluetooth-enabled S Pen offers genuine utility Samsung has since removed from newer models

Compromises

  • Persistent shutter lag causes missed candid photo moments
  • Slow shutter speed in low light blurs moving subjects
  • Titanium frame scratches more easily than its marketing suggested

Compare in Sizometry Tool

See both devices at the same scale.