Device summary

Apple

iPhone 18 Pro Max

OPPO

K14

Full specifications

Full specifications
Basic information
Release year20262026
Starting price$1,299—
Display size6.9-inch6.8-inch
Dimensions78.0 mm × 163.4 mm × 8.8 mm78.5 mm × 166.6 mm × 8.6 mm
Weight249 g216 g
Front materialCeramic Shield 2—
Back materialCeramic Shield—
Display
Display technologySuper Retina XDR OLED—
Resolution2868 × 13201570 × 720
Refresh rate120 Hz120 Hz
Peak brightness3000 nits1125 nits
ProtectionCeramic Shield 2—
Performance
ChipsetApple A20 ProMediaTek Dimensity 6300
GPU7-core GPU with Neural AcceleratorsARM Mali-G57 MC2
Storage256 GB, 512 GB, 1024 GB, 2048 GB128 GB, 256 GB
Expandable storageNo—
RAM—6 GB, 8 GB
Cameras
Main cameraFusion Main · 48 MP · ƒ/1.48–ƒ/4.0 · 24 mm · Second-generation sensor-shift OISWide · 50 MP · ƒ/1.8
Ultra-wide cameraFusion Ultra Wide · 48 MP · ƒ/2.2 · 13 mm—
Telephoto cameraFusion Telephoto · 48 MP · ƒ/2.8 · 100 mm · 4× optical zoom · 3D sensor-shift OIS—
Monochrome camera—Monochrome · 2 MP · ƒ/2.4
Front camerasCenter Stage · 18 MP · ƒ/1.9Front · 8 MP · ƒ/2.0
Video recording4K Dolby Vision up to 120 fps, ProRes up to 4K at 120 fps1080p at 60 fps
Battery & charging
Wired charging—45 W
Wireless charging25 W—
Charging standardUSB-C, MagSafe up to 25W, Qi2 up to 25WSUPERVOOC; PPS; PD
Video playback (Manufacturer claim)45 h—
Streamed video (Manufacturer claim)40 h—
Battery typeBuilt-in rechargeable lithium-ion—
Typical capacity—7000 mAh
Rated capacity—6830 mAh
Connectivity
Cellular5G (sub-6 GHz and mmWave), Gigabit LTE5G, LTE
Wi‑FiWi‑Fi 7 (802.11be)Wi‑Fi 5
BluetoothBluetooth 6Bluetooth 5.4
USBUSB-C (USB 3, up to 10Gb/s)USB Type‑C
NFCYes—
eSIMYes—
SatelliteEmergency SOS via satellite—
Build & durability
FrameAluminum unibody—
Ingress protectionIP68IP66; IP68; IP69; MIL-STD-810H

Key differences

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

  • Weight

    K14

    33 g lighter

  • Height

    K14

    3.2 mm taller

  • Width

    K14

    0.5 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.

  • K14 is 0.5 mm (0.6% relative to iPhone 18 Pro Max) wider. Check this difference against the width of your current device and pocket opening.
  • K14 is 3.2 mm (2% relative to iPhone 18 Pro Max) 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 K14) thicker. Cases and camera protrusions can change the clearance you need.
  • K14 is 33 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 18 Pro Max

K14

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 18 Pro Max vs K14 Size Comparison

User Experience Summary

K14

Strengths

  • 7,000 mAh battery with excellent early daily and light multi-day endurance
  • Cheaper India pricing than A6s with 500 mAh more capacity
  • IP69 and MIL-STD sealing for weather confidence

Compromises

  • HD+ LCD clearly behind K13 FHD+ AMOLED on a 6.75-inch panel
  • 45W charging slower than 80W K13 for busy midday routines
  • Wide 78.5 mm body and 216 g weight without premium display payoff

Compare in Sizometry Tool

See both devices at the same scale.