iPhone Duo vs OPPO Find X10 Pro Max

Build and design

The Duo is a foldable with a hinge, an inner display that unfolds flat and an outer display for quick use, at 254g, 5.2mm unfolded and 11.3mm folded. The OPPO is a larger slab at 6.78 inches, with IP66, IP68 and IP69 ratings and a triple-camera island that dominates its back. Both phones feel premium, but only the Duo becomes a small tablet, while the OPPO is a simpler, more durable slab with no hinge or crease concern.

If you want the newest form factor and accept foldable compromises, the Duo wins on novelty. If you want proven slab durability and a larger battery, the OPPO wins. For most buyers, the slab is the safer choice, unless multitasking on a larger inner display is a priority.

Display and benchmarks

The Duo offers a 7.6-inch inner display at 1878 x 2670 and a 5.4-inch outer display at 1398 x 2034, both ProMotion and Always-On, with up to 3,000 nits in one listing. The OPPO offers a single 6.78-inch display at 2772 x 1272 with 1–120Hz and 144Hz in some games, and up to 3,600 nits in one listing. For reading, split-screen work and video, the Duo's inner display is larger, while its outer display is smaller and narrower than the OPPO's main display for everyday use.

On benchmarks, the Duo uses A20 Pro and the OPPO uses Dimensity 9600 Pro on 2nm, 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 gaming, the Duo's larger screen is more immersive, while the OPPO's slab is easier to hold for long sessions.

Cameras and video

The Duo offers dual 48MP cameras, a Fusion main and a Fusion ultrawide, with no telephoto, plus a 12MP Centre Stage front camera. The OPPO offers three 200MP cameras — a main at 1/1.3-inch f/1.5, an ultrawide at 1/1.56-inch and a telephoto at 1/1.56-inch f/2.1 at 70mm and 3x with telemacro — plus a 50MP front camera, with 8K30 and 4K120 on all rear cameras and Hasselblad colour. On paper, the OPPO wins on megapixels, ultrawide and telephoto, while the Duo wins on simplicity and Apple 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 zoom and ultrawide often, the OPPO is stronger on paper. If you shoot video and want Apple's ProRes pipeline, the Duo is stronger on paper. For everyday photos at 1x, both should be close, despite the megapixel gap.

Battery, software and price

Battery is where the OPPO wins on paper, with 7,150mAh in Europe and 80W wired and 50W wireless charging, versus a reported 5,400mAh dual-battery system for the Duo in one comparison table — a figure that is not an Apple disclosure, so treat it as reported, not official. For most users, the OPPO will last longer on paper, while the Duo's battery will vary with inner versus outer use. Charging is faster on the OPPO on paper, though real-world charging should be checked in reviews.

Software is iOS 27 on the Duo, with foldable multitasking and, in reports, a side Touch ID button, while the OPPO runs ColorOS 17 with Hasselblad tuning. In Europe, both are on sale, with the Duo at €2,299 in Germany and the OPPO at €1,799 for 12GB/512GB — a €500 gap at different storage, with the Duo costing more despite less storage. In the US, only the Duo is officially sold, from $1,999.

Verdict

Buy the iPhone Duo if you want a foldable in the US from $1,999 or in Europe from €2,299 in Germany. Buy the OPPO Find X10 Pro Max if you want a triple-200MP slab in Europe from €1,799. For most European buyers, the OPPO is the smarter camera buy — the Duo is for foldable enthusiasts.