iPhone 18 Pro vs OnePlus 16

Build and design

The iPhone is a compact 6.3-inch phone at 211g and 8.75mm, with an aluminium unibody, Ceramic Shield 2 front and back, IP68 rating and a smaller Dynamic Island. The OnePlus is a larger 6.78-inch phone with a dedicated display, eSports and touch chip setup, bypass charging and a gaming-focused design. Both phones feel flagship, but only the iPhone is a compact, easy-to-hold phone, while the OnePlus is a larger gaming phone.

If you want a phone that disappears in a pocket and is easy to service in the US or Europe, the iPhone wins. If you want a larger gaming display and are willing to import, the OnePlus wins on screen size and battery, at the cost of official support.

Display and benchmarks

The iPhone offers a 6.3-inch display at 2622 x 1206 with 120Hz and up to 3,000 nits peak, while the OnePlus offers a 6.78-inch LTPO OLED display at 1272 x 2772 with 165Hz interface and 185Hz in games, plus dedicated P4 display, G3 eSports and T3 touch chips. For gaming, the OnePlus wins on refresh rate and size on paper, while the iPhone wins on brightness and compact handling.

On benchmarks, the iPhone uses A20 Pro on 2nm and the OnePlus uses Snapdragon 8 Elite Extreme Gen 6, so no speed winner is claimed between them — a controlled side-by-side benchmark between these two phones was not reviewed. Both chips are flagship designs, and any real-world difference would come from software and cooling, not from a generational gap. For everyday use, both should be fast, while for gaming, the OnePlus's higher refresh rate is its main advantage.

Cameras and video

The iPhone offers a triple 48MP system, with a Fusion main with variable aperture (up to 4 aperture stops in one review), an ultrawide at f/2.2 and a telephoto at f/2.8, plus an 18MP front camera with Centre Stage. The OnePlus offers a 200MP main (1/1.4-inch, f/1.6, OIS), a 50MP 3x periscope telephoto (1/1.95-inch, f/2.6) and a 50MP ultrawide, plus a 50MP front camera. On paper, the OnePlus wins on megapixels and main sensor resolution, while the iPhone wins on variable aperture and video pipeline.

No controlled side-by-side camera test between these two phones was reviewed, so no photo winner is claimed beyond the hardware gap. If you shoot portraits and video, the iPhone's variable aperture and ProRes pipeline are stronger on paper. If you want the most detailed main-camera photos, the OnePlus's 200MP main is stronger on paper.

Battery, software and price

Battery is where the OnePlus wins clearly on paper, with 9,000mAh and 100W wired, 50W wireless and 27W reverse charging, with 80% in 37 minutes claimed. The iPhone does not disclose mAh, and is listed with claims up to 36 hours video playback in one listing, with 50% in around 15 minutes wired in one listing. For most users, the OnePlus will last longer on paper, while the iPhone will still last a full day for light to moderate use.

Software is iOS 27 on the iPhone, with Face ID and Apple ecosystem integration, though Siri AI varies by region in Europe, while the OnePlus runs ColorOS 17 in China. Neither software can be judged for a US or Europe buyer on the OnePlus, because it is not officially sold there. In the US and Europe, the iPhone is the only one you can buy today, from $1,199 in the US and €1,449 in Germany.

Verdict

Buy the iPhone 18 Pro if you want a compact flagship in the US from $1,199 or in Europe from €1,449 in Germany. Do not buy the OnePlus 16 in the US or Europe on specs alone, because it is China-only for now, with no confirmed US or Europe launch. For most US and Europe buyers, the iPhone is the only choice — the OnePlus is a wait-and-see import.