Device summary

Apple

iPhone 16 Pro Max

Xiaomi

17 Ultra

Full specifications

Full specifications
Basic information
Release year20242026
Starting price$1,199—
Display size6.9-inch6.9-inch
Dimensions77.6 mm × 163.0 mm × 8.3 mm77.6 mm × 162.9 mm × 8.3 mm
Weight227 g218 g
Front materialCeramic Shield—
Back materialTextured matte glass—
Display
Display technologySuper Retina XDR OLEDHyperRGB OLED
Resolution2868 × 13202608 × 1200
Refresh rate120 Hz120 Hz
Peak brightness2000 nits—
ProtectionCeramic Shield—
Performance
ChipsetApple A18 ProSnapdragon 8 Elite Gen 5 Mobile Platform
RAM8 GB—
Storage128 GB, 256 GB, 512 GB, 1024 GB—
Expandable storageNo—
Cameras
Main cameraFusion · 48 MP · ƒ/1.78 · 24 mm · Second-generation sensor-shift OISWide · 50 MP
Ultra-wide cameraUltra Wide · 48 MP · ƒ/2.2 · 13 mmUltra Wide · 50 MP
Telephoto cameraTelephoto · 12 MP · ƒ/2.8 · 120 mm · 5× optical zoom · OISTelephoto · 200 MP
Front camerasTrueDepth · 12 MP · ƒ/1.9—
Video recording4K Dolby Vision up to 120 fps, ProRes up to 4K at 60 fps—
Battery & charging
Wired charging25 W90 W
Wireless charging15 W50 W
Charging standardMagSafe, Qi2—
Battery typeBuilt-in rechargeable lithium-ion—
Typical capacity—6000 mAh
Connectivity
Cellular5G (sub-6 GHz and mmWave), Gigabit LTE—
Wi‑FiWi‑Fi 7 (802.11be)—
BluetoothBluetooth 5.3—
USBUSB-C (USB 3)—
NFCYes—
eSIMYes—
SatelliteEmergency SOS via satellite—
Build & durability
FrameTitanium—
Ingress protectionIP68—

Key differences

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

  • Weight

    17 Ultra

    9 g lighter · minor difference

  • Height

    Very similar height

  • Width

    Very similar width

  • 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.

  • Both have the same listed width (77.6 mm) at the displayed precision. Check this difference against the width of your current device and pocket opening.
  • iPhone 16 Pro Max is 0.1 mm (0.1% relative to 17 Ultra) taller. This describes the body outline; screen diagonal alone does not tell you the overall size.
  • Both have the same listed thickness (8.3 mm) at the displayed precision. Cases and camera protrusions can change the clearance you need.
  • 17 Ultra is 9 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

iPhone 16 Pro Max

17 Ultra

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.

iPhone 16 Pro Max vs 17 Ultra Size Comparison

User Experience Summary

iPhone 16 Pro Max

Strengths

  • Best-in-lineup battery endurance for real travel and heavy days
  • 6.9-inch ProMotion display transforms media, gaming, and mobile editing
  • Full Pro camera system including 5x telephoto and 48MP ultrawide

Compromises

  • Wide, heavy body limits one-handed and pocket-first use
  • 227 g long-session fatigue for some owners
  • No camera advantage over the smaller iPhone 16 Pro

Compare in Sizometry Tool

See both devices at the same scale.