Galaxy Z Fold8 vs Xiaomi 18 Fold

Build and design

The Samsung is 201g, with a wide-format design, a 7.6-inch inner display at near 4:3 and a 5.5-inch cover display, with IP48 rating in one listing, Gorilla Glass Ceramic 3 cover and Advanced Armor Aluminum. The Xiaomi is 219g, 5.0mm unfolded and 10.7mm folded, with a passport-sized folded form that Xiaomi calls a mid-fold. Both phones are thin unfolded, but the Samsung wins on weight, while the Xiaomi wins on folded thickness on paper.

Water rating is a flagged disagreement for the Xiaomi: one listing gives IP58/IP59, while another report says Xiaomi gave no water or dust rating at IFA. Do not buy either foldable on a water rating alone — check the official listing for your exact model, and treat foldable durability as a long-term review question.

Display and benchmarks

The Samsung offers a 7.6-inch inner display at 1848 x 2448 with 120Hz and a 5.5-inch cover display, both Dynamic AMOLED 2X, with a near-4:3 inner ratio that suits reading and browsing. The Xiaomi offers a 7.58-inch inner display at 2364 x 1672 with 1–120Hz and a 5.38-inch cover display at 1712 x 1168, with up to 4,000 nits peak in one listing. Both inner displays are almost identical in size, so the difference is not size, but aspect ratio and brightness — the Samsung's wider inner is better for reading, while the Xiaomi's cover is passport-sized for one-handed use.

On benchmarks, the Samsung uses Snapdragon 8 Elite Gen 5 for Galaxy and the Xiaomi uses its own XRing O3 chip on 3nm, with ten cores up to 4.35GHz and a 16-core GPU, with Xiaomi claiming an 85% GPU improvement over its predecessor — a self-reported claim, not an independent benchmark. No controlled side-by-side benchmark between these two phones was reviewed, so no speed winner is claimed. For multitasking, both should handle split-screen work on their inner displays, with the Xiaomi's up to 16GB RAM helping on paper.

Cameras and video

The Samsung offers dual 50MP cameras in the comparison listings, a main and an ultrawide, with no telephoto, after Samsung dropped the telephoto lens for this wider form factor. The Xiaomi offers a 200MP main with OIS, a 50MP telephoto at 3.5x with OIS and a 50MP ultrawide, with Leica lenses and laser autofocus. On paper, the Xiaomi wins on megapixels and telephoto, while the Samsung wins on simplicity and Samsung 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 often, the Xiaomi is stronger on paper. If you shoot at 1x and ultrawide and want Samsung's ecosystem, the Samsung is adequate. For everyday photos at 1x, both should be close, despite the megapixel gap.

Battery, software and price

Battery is where the Xiaomi wins on paper, with 6,000mAh and 67W wired and 50W wireless charging, versus the Samsung's 4,800mAh with 45W wired and 20W wireless charging. For most users, the Xiaomi will last longer on paper, while the Samsung's smaller battery is the trade-off for its lighter 201g body. Charging is faster on the Xiaomi on paper, though real-world charging should be checked in reviews.

Software is Android 17 with One UI 9 on the Samsung, with Galaxy AI and DeX in Samsung's ecosystem, while the Xiaomi runs HyperOS 4 on Android 17 in China, with no confirmation of which Google services its Chinese firmware includes — a practical obstacle for import buyers. In the US and Europe, the Samsung is the only one you can buy today, from $1,899.99 in the US and €1,999 in Europe.

Verdict

Buy the Galaxy Z Fold8 if you want a foldable in the US from $1,899.99 or in Europe from €1,999. Do not buy the Xiaomi 18 Fold in the US or Europe on specs alone, because it is China-only for now, with no confirmed launch. For most US and Europe buyers, the Samsung is the only choice — the Xiaomi is a wait-and-see import.