Apple and Xiaomi introduced their first passport-style foldables within two days of each other, and anyone running an iPhone Duo vs Xiaomi 18 Fold comparison right now will notice how closely the hardware converges.
The iPhone Duo uses a 7.6-inch inner display and 5.4-inch outer display, while Xiaomi's panels measure 7.58 inches and 5.38 inches. Both run at up to 120Hz.
The buying situation is less symmetrical. Xiaomi's 18 Fold is already on sale in China from 10,999 yuan, while Apple's Duo opens for preorder Oct. 16 and reaches stores Oct. 23 in more than 70 countries and regions, including the US, UK, China, Australia, and Japan. Apple starts the Duo at $1,999 in the US.
There still aren't full independent reviews of both phones under matching conditions, so this comparison is primarily about confirmed specifications, launch availability, and the trade-offs each manufacturer has chosen.
iPhone Duo vs Xiaomi 18 Fold specs at a glance
The two phones overlap closely on display size but diverge sharply on weight, battery, charging, cameras, and availability.
iPhone Duo
Starts at $1,999 in the US.
Preorders open Oct. 16, with sales beginning Oct. 23 in more than 70 initial markets.
Uses a 7.6-inch inner OLED display and 5.4-inch outer OLED display, both with refresh rates up to 120Hz.
Reaches up to 3,000 nits of outdoor brightness.
Weighs 254g.
Uses grade 5 titanium, Ceramic Shield 2 on the front, Ceramic Shield on the back, and carries an IP68 rating.
Apple does not disclose battery capacity in mAh.
Reaches 50% charge in around 20 minutes with a 60W-capable or higher USB-C adapter.
Supports MagSafe and Qi2 wireless charging up to 25W.
Uses a 48MP main camera and 48MP ultrawide, with no dedicated telephoto lens.
Ships with iOS 27.1, including Split View and Siri AI beta. Apple Pencil support is scheduled for later in 2026.
Xiaomi 18 Fold
Starts at 10,999 yuan in China.
Is officially available in China, with no international retail rollout announced.
Uses a 7.58-inch HyperRGB OLED inner display and 5.38-inch outer display, both with 1-120Hz LTPO refresh rates.
Reaches up to 4,000 nits, according to Xiaomi.
Weighs 219g.
Uses a 7000-series aluminum frame and Shield Glass 3.0. Xiaomi did not disclose an IP rating in its launch material.
Uses a 6,000mAh silicon-carbon battery.
Supports 67W wired HyperCharge and 50W wireless HyperCharge.
Uses a 200MP main camera, 50MP ultrawide, and 50MP periscope telephoto.
Runs Xiaomi HyperOS with two-way and three-way split-screen multitasking.
That gives Xiaomi the stronger raw specification sheet in several areas, while Apple has the broader launch footprint and more complete global retail support.
Who can actually buy and use either one
Availability is the first practical split.
Apple says customers in more than 70 countries and regions can preorder the iPhone Duo beginning Oct. 16, with availability starting Oct. 23. Another 28 countries and regions follow Oct. 30.
The Duo is eSIM-only worldwide. Apple says eSIM is supported by more than 500 carriers globally, though actual plan and carrier support still needs to be checked locally.
Xiaomi launched the 18 Fold in China, where the base 12GB/256GB model costs 10,999 yuan. Its launch material does not announce an international retail rollout.
That makes importing the 18 Fold the only current route for buyers outside China. Importing does not automatically mean the phone won't work elsewhere, but buyers should verify local 5G/LTE bands, warranty coverage, repair options, software region behavior, payment features, and SIM support before ordering.
For readers in one of Apple's initial launch markets, the practical choice is therefore uneven: the Duo has an official local sales and support path, while the Xiaomi does not.
Design and durability: a daily-carry trade-off
Apple uses grade 5 titanium for the Duo's folding structure, Ceramic Shield 2 on the front, Ceramic Shield on the back, and an IP68 water- and dust-resistance rating.
The 7.6-inch inner display also uses a nano-texture finish intended to reduce glare and make the crease less visible. Apple says both displays support ProMotion up to 120Hz and reach 3,000 nits of peak outdoor brightness.
Xiaomi uses a high-strength 7000-series aluminum alloy frame and Shield Glass 3.0 on the outer display and back. Its launch material also describes a dual-layer Ultra Thin Glass structure for the inner display and claims 258% higher impact resistance than its previous foldable construction.
Xiaomi does not disclose an IP rating in that launch material.
Weight strongly favors Xiaomi. The 18 Fold weighs 219g, compared with 254g for the Duo, a 35g difference.
That is large enough to matter to buyers who care about pocket weight or prolonged one-handed use, although it doesn't tell us which phone will survive drops, hinge wear, or long-term folding better.
Neither phone has yet gone through comparable independent durability testing.
Performance and battery: which numbers actually compare
The Xiaomi 18 Fold uses Xiaomi's 3nm XRING O3 processor and a 6,000mAh silicon-carbon battery.
Xiaomi says the battery uses 20% high-silicon content and supports 67W wired and 50W wireless HyperCharge. Both displays can reach up to 4,000 nits and use 1-120Hz LTPO refresh rates.
The company also sells configurations with up to 16GB of RAM and 1TB of storage.
Apple does not publish the Duo's battery capacity in mAh.
Instead, it rates the phone for up to 24 hours of typical use, up to 44 hours of video playback on the outer display, and up to 31 hours on the inner display.
The A20 Pro uses Apple's new 2nm architecture and a dual-battery design, with a custom vapor chamber for sustained performance.
Charging needs more careful wording than a simple wattage comparison.
Apple says the Duo can reach 50% charge in around 20 minutes when paired with a 60W-capable or higher USB-C adapter. That does not mean Apple lists the phone itself as having a 60W maximum charging rate.
For wireless charging, Apple does publish a ceiling: MagSafe and Qi2 both top out at 25W. The 35W figure in Apple's charging notes refers to the minimum adapter wattage required for its 50%-in-30-minutes MagSafe test, not the actual wireless charging rate.
Xiaomi therefore has the higher published charging wattage on both wired and wireless charging, while Apple emphasizes battery-life and charge-time claims instead of battery capacity.
None of those numbers proves which phone lasts longer in everyday use. That needs independent battery rundown testing under the same workloads.
Cameras: zoom hardware versus video software
The Xiaomi 18 Fold has the more ambitious camera hardware on paper.
Its Leica-branded triple system includes a 200MP main camera built around a 1/1.56-inch HP5 sensor, a 50MP periscope telephoto with an 80mm focal length, and a 50MP ultrawide. Xiaomi also advertises in-sensor zoom extending the telephoto range to 160mm.
The iPhone Duo uses two rear cameras instead: a 48MP Fusion Main and 48MP Fusion Ultra Wide.
Apple advertises up to 2x "optical-quality" zoom from the main sensor, but there is no dedicated telephoto lens.
That gives Xiaomi a clear hardware advantage for anyone who specifically wants a dedicated optical zoom camera.
Apple leans harder into video and foldable-specific shooting tools. The Duo records up to 4K Dolby Vision at 120fps and includes Audio Mix, Cinematic tools, Smart Take, Duo Preview, and a folding design that can prop the phone up for hands-free shooting.
Lens count and megapixels still don't determine final image quality.
The meaningful comparison will come when both phones are tested side by side for daylight, low light, portraits, zoom, video stabilization, autofocus, and processing.
Software: both phones have foldable-specific multitasking
The original reporting gap around Xiaomi's software no longer holds up.
Apple says iOS 27.1 on the Duo introduces Split View, letting users run two apps side by side on an iPhone for the first time. It can also run two windows from the same app, save app pairs, and quickly swap one side of the split-screen layout.
The Duo ships with iOS 27.1.
Siri AI is rolling out as a beta. Apple launched it in English in September and said French, Japanese, Korean, Portuguese, and Spanish support would arrive in October. Apple's current public material still describes those additional languages as coming in October rather than confirming that every one has completed rollout, so availability should be checked at launch.
Apple Pencil support is also not available at launch. Apple says iPhone Duo will work with Apple Pencil (USB-C) later in 2026.
Xiaomi also built foldable-specific multitasking into the 18 Fold.
Its launch material says HyperOS supports two-way split-screen layouts and a three-way split mode designed to give each section proportions closer to a normal smartphone screen.
That means the software comparison is no longer "Apple has documented multitasking while Xiaomi is unknown." Both companies have publicly described foldable-specific layouts.
What remains untested is how well those systems actually work with third-party apps, how aggressively apps resize or reload, and which implementation feels better over extended use.
Which one actually makes sense right now
On paper, Xiaomi pushes harder on several hardware specifications.
The 18 Fold is 35g lighter, has the larger published battery capacity, higher published charging wattages, a dedicated periscope telephoto, and a higher manufacturer-rated peak-brightness figure.
Apple counters with IP68 protection, a titanium build, an official global launch spanning more than 70 initial markets, iOS Split View, and a mature local carrier and service ecosystem in those launch countries.
So which makes sense depends heavily on location:
In China: the Xiaomi 18 Fold is already an official purchase at 10,999 yuan and offers several aggressive hardware specifications. The iPhone Duo joins it Oct. 23.
In one of Apple's initial 70-plus launch markets outside China: the Duo is the only one of these two with an announced official local sales path. Preorders open Oct. 16 and availability starts Oct. 23.
Elsewhere: confirm local availability and network support before importing either phone, and don't treat manufacturer battery, brightness, durability, or camera claims as substitutes for independent testing.
The Xiaomi 18 Fold wins more categories on the raw spec sheet. The iPhone Duo currently has the much broader official distribution and support path.
Neither point tells us which is the better foldable in practice. That answer needs independent testing of battery life, cameras, thermals, displays, hinge durability, software multitasking, and day-to-day ergonomics once both phones are actually in reviewers' hands.
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