Meet the Xiaomi 18 Fold: Passport-Sized When Closed, Wider Than Tall When Open

Xiaomi’s passport-sized foldable debuts in China on September 7 powered by the in-house 3nm XRING O3 chip

Al Landes Avatar
Al Landes Avatar

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Image: GSMArena

Key Takeaways

Key Takeaways

  • Xiaomi 18 Fold introduces a passport-sized mid-fold format, replacing tall narrow foldable designs.
  • Debut of in-house XRING O3 chip signals Xiaomi’s push toward full silicon vertical integration.
  • Price, battery specs, and global availability remain unconfirmed ahead of China’s September 7 launch.

Every major foldable phone has been tall and narrow when shut — essentially a candy bar that opens into a small tablet. Xiaomi looked at that consensus and walked the other direction. The 18 Fold uses what launch coverage describes as a “mid-fold” layout: shorter body, wider proportions, roughly passport-sized when closed. It unfolds to a 7.58-inch inner display oriented wider than tall. Xiaomi confirmed a China launch on September 7, 2026, via Weibo posts from company leadership. That date is real. Most everything else still needs verification.

The Case Against Tall Foldables

Xiaomi’s wider format is a deliberate design argument — and the real-world use cases back it up.

Tall foldables open into portrait-oriented screens that still feel like phones. The 18 Fold’s wider layout changes that math. Split-screen multitasking should actually look like two apps side by side, not two slivers. Widescreen video is likely to fill the display far more naturally. Reading could feel closer to a paperback than a phone held sideways — though you’ll want to wait for hands-on reviews before booking that experience as fact.

The chip choice is equally telling. Xiaomi’s previous Mix Fold line ran Qualcomm silicon. The 18 Fold debuts the in-house XRING O3 — 3nm process, 10-core CPU, 16-core G2-Ultra NX GPU, with LPDDR6 memory support. Going in-house on custom silicon is the tech equivalent of a restaurant finally owning its own farm: more control, higher stakes, no one else to blame when the soufflĂ© falls. The Leica-branded triple rear camera system is confirmed — for readers weighing image quality, our guide to the best cameras offers useful context. Full camera specs are not.

Here’s what Xiaomi has actually confirmed:

  • Mid-fold form factor; folded size roughly passport-sized
  • 7.58-inch inner display
  • XRING O3 chipset (3nm, 10-core CPU, 16-core G2-Ultra NX GPU, LPDDR6 support)
  • Leica-branded triple rear camera (full specs undisclosed)
  • Nishino Red colorway; rounded corners, thin bezels, pill-shaped camera bar; “dragon-bone” hinge teased
  • September 7, 2026 China launch, alongside Xiaomi Pad 9 Pro Max and N70-series products

What’s Still Missing From the Story

Battery, price, and global availability remain unconfirmed — and that list runs longer than Xiaomi’s teasers suggest.

Early reporting cites a 6,000mAh battery, 67–90W wired charging, 50W wireless, IP68 protection, and a side fingerprint sensor. Treat all of that as rumor until Xiaomi publishes a full spec sheet. Price chatter sits around 12,000 yuan — an estimate, not a confirmed figure. Global availability is unconfirmed; current reporting suggests China-only at launch, with no official worldwide rollout announced.

That XRING O3 debut matters beyond this single phone. It signals where Xiaomi’s ambitions actually point — vertical integration, with all the upside and accountability that brings. This is Xiaomi planting a flag in its own silicon future, and the 18 Fold is simply the first device asked to carry it.

If you’re outside China, September 7 tells you nothing actionable yet. The mid-fold design and in-house chip make the 18 Fold worth watching — because the arguments behind both choices are genuinely unlike anything Samsung or Huawei is currently selling.

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