Motorola Razr Fold vs Xiaomi 15 Ultra

Motorola Razr Fold

Historically the foldable Achilles heel — but Motorola invested in hardware and software here, and DxOMark ranks it the best camera in any foldable.

• DxOMark rates the Razr Fold the #1 camera among foldables — roughly 8th overall across all phones — with a Gold Label.
• A 50MP main (f/1.6, OIS), a 50MP ultrawide (12mm, 122° FOV, f/2.0) and a third 50MP camera — all selfies can use the best 50MP main.
• This is without question the best Motorola camera I've ever used.
• Comes up just short of modern flagships like the iPhone 17 Pro, Find X9 Pro and Xiaomi 17 Ultra, with a DxOMark score of 164 points.
• Took it for a street-photography spin and came away genuinely impressed — the camera hardware was what caught attention.
• Highest-quality camera in a folding phone in the US — better than the Pixel 10 Pro Fold and Galaxy Z Fold 7, which use older sensors.

Xiaomi 15 Ultra

The whole point of the phone: a Leica Summicron quad system — a 1-inch-type 50MP main, a 50MP 3x telephoto, a 200MP 4.3x periscope and a 50MP ultrawide. Reviewers overwhelmingly rate it the best phone camera of its generation, with the only soft spots being the ultrawide and a missing variable aperture.

• A Leica Summicron system: a 1-inch-type 50MP main (23mm), a 50MP 3x telephoto, a 200MP periscope (4.3x optical, ~100mm) and a 50MP ultrawide — the 1-inch main is an unexpected differentiator no one else uses in a globally available model.
• As far as phones personally used, this is the best camera experience bar none — if cameras are your top priority you cannot get better than the 15 Ultra.
• Main camera-wise the Xiaomi is the best overall, especially for daytime shots and depth of field; at 3x it captures the most detail and at 5x it has the least noise versus the S25 Ultra and iPhone.
• Xiaomi did get the best camera hardware, but the leather-camera look is mostly aesthetic — what makes a real camera good is a far bigger lens, and this is still a small smartphone sensor.

Motorola Razr Fold

Snapdragon 8 Gen 5 with 16GB RAM — fast for everyday use and surprisingly good in long sessions, but the choice of the non-Elite chip in a $1,899 phone is the headline criticism.

• Motorola stuck Qualcomm's excellent Snapdragon 8 Gen 5 (16GB RAM, 512GB) inside its first full-fold flagship.
• With a phone this expensive it is a bit disappointing Motorola couldn't go all the way with the Elite chip.
• In a 20-minute stress test the Z Fold 7's 8 Elite was ~10% better on the first loop, but the Razr Fold ran better through the 20 minutes and ended ~20% ahead on sustained performance with similar thermals.
• Recording 4K120 for a long time makes the Snapdragon CPU run quite hot, though it cools down fairly fast.
• The non-Elite chip, 243g weight and IP49 dust rating could be causes for concern, even if the experience is smooth.

Xiaomi 15 Ultra

Snapdragon 8 Elite with up to 16GB RAM and UFS 4.1 — flagship-grade and still excellent a year on. Real-world gaming holds ~57–60fps with acceptable power draw, though heavy synthetic stress tests show meaningful throttling.

• Runs Qualcomm's Snapdragon 8 Elite with up to 16GB RAM and 1TB UFS 4.1; 10 months on it's still an extremely well-balanced phone that feels like a true flagship.
• In ~50 minutes of gaming it held a stable ~57–60fps with 4–8W draw — acceptable for the 8 Elite — where some rivals throttle hard and drop to 30fps after 30 minutes.
• After 30 minutes of real gaming with apps closing/reopening the CPU sat around 47°C with no overheating — heat only appears in synthetic 3DMark/throttle benchmarks, not realistic use.
• In a 3DMark stability run it scored ~70–76% stability (lowest loop ~4,335–4,542), holding 20–43fps.
• Under a punishing 60-minute 100-thread CPU throttle test it dropped roughly 40–50% in sustained performance, recovering only slightly better than the S25 Ultra.

Motorola Razr Fold

The standout: the largest battery in the book-foldable space delivering class-leading endurance, plus 80W wired charging — three times faster than the Galaxy Z Fold 7.

• Lasting an impressive 14 hours 31 minutes, the Razr Fold is officially the best notebook-style foldable for battery life (16h10m with refresh-rate optimized).
• The Galaxy Z Fold 7 managed only 10h44m in the same test, with a 4,400mAh battery versus the Razr Fold's 6,000mAh cell.
• I found the battery basically impossible to kill in a single day, even with the Fold's hotspot supplying an entire office internet connection over 12 days.
• It charges at 80W wired — over three times as fast as the Galaxy Z Fold 7's 25W — plus 50W wireless and 5W reverse, with a 90W charger and a case included in the box.
• The 6,000mAh cell is colossal — about 20% larger than the Pixel 10 Pro Fold's — though there's also more display to power.
• If you use the camera a lot or run games, the battery does drain quite quickly and you may need an afternoon top-up.

Xiaomi 15 Ultra

The global model's ~5,410mAh cell (vs 6,000mAh in China) is the phone's weakest area — many reviewers end the day under 30%, with a notable idle drain — though 90W wired charging fully refills it in roughly an hour and Chinese-variant users report much better longevity.

• The global variant has a smaller 5,410mAh cell vs the 6,000mAh China variant, and most days the phone is around or under 30% by the end of the day — it could have done with a bigger battery.
• With always-on display, 120Hz and intensive camera use it consistently achieved over 15 hours of usage on a single charge in real-world testing.
• On the global/Indian 5,410mAh battery, the in-box 90W charger refills it roughly: 18% in 5 min, 67% in 30 min, 90% in 45 min, and a full charge in about an hour.
• On the Chinese 6,000mAh variant with a power-efficient chip, the battery was still at 78% after not charging for three nights.
• There's a real idle-drain issue — 20 minutes of light morning use can drop 5–6%, and it persists even with extra-dim settings enabled.

Motorola Razr Fold

The surprise strength — Motorola's foldable software is widely called the best balance of Pixel simplicity and Samsung multitasking, undercut only by Motorola's update-timeliness history.

• Motorola nailed the software — it feels like the perfect middle ground between the Pixel and Samsung approaches to book foldables, with a laptop mode that turns the bottom half into a trackpad.
• The Razr Fold is winning me over with something not on the spec sheet — superb multitasking software.
• Given Motorola's awful track record for timely updates, you've got to be ready to live with the little launch bugs for a while.
• Motorola promises 7 years of Android version and security updates — best-in-class and a huge jump from last year's 3-year commitment.
• Counterpoint: Motorola is only committing to 3 years of Android upgrades and 5 years of security patches, so versus Samsung's 7 years it's really no contest.

Xiaomi 15 Ultra

HyperOS (now on the Android 16 / HyperOS 3 track) is the phone's most criticized aspect: it heavily mimics iOS, ships with quirks you must tweak, and carries small persistent bugs — though it adds genuinely useful touches like a Super Island and AI features, and Xiaomi has improved it via updates.

• Out of the box it gives a really iPhone-like feel and you have to go in and change things before it behaves how you want.
• Long-standing requests are still ignored — no combined notification/control center, removed options like front-camera switching while recording video, and the dropped variable aperture.
• HyperOS adds a useful Super Island (tap to expand or switch to a floating window) and direct drag-and-drop into chats, with OS 3 refining the control center.
• Xiaomi's animations are nearly iOS-level and arguably better than stock Android, but the software is still seen as subpar for the Western market.
• Xiaomi now offers a longer software-update commitment (reported up to 6 years) — a meaningful improvement for long-term buyers.

Motorola Razr Fold

At $1,899 it undercuts the Z Fold 7 and is the only premium book foldable many US buyers can actually purchase — value hinges on whether the non-Elite chip and update questions matter to you.

• At $1,899.99 / £1,799.99 it undercuts the Galaxy Z Fold 7 by about $100/£100, and the pre-order Moto Pen Ultra bundle adds real value — the sum of its parts is the best foldable on the market.
• If you're tired of Samsung-only or have no interest in the Pixel Fold, this may be the best folding phone you can get in the US right now — the Oppo Find N6 and Honor Magic V6 aren't available there.
• It could be called a disappointment, especially compared to the Samsung Galaxy Z Fold and Honor Magic V5 — it should have offered something more compelling to stand out.
• If Motorola drops the price by even two or three hundred dollars within the first few weeks, this phone suddenly becomes a much stronger contender.
• It competes fairly well with the Oppo Find N6, which is amazing to see.

Xiaomi 15 Ultra

Roughly $893 in China and ~$1,220+ imported globally, it undercuts the Galaxy S25 Ultra and iPhone while comfortably winning the camera comparison. The catch is it's an import with no official US presence — a phone you 'probably can't buy' but the camera benchmark to beat.

• It launched at 6,499 yuan (around $893) in China; Xiaomi's Ultra line has always been more camera-centric than Samsung or Apple's top models.
• It combines top-tier hardware, excellent cameras and strong performance at a more competitive price point than its rivals.
• The Xiaomi wins the camera part comfortably, but the Galaxy S25 Ultra may be the better all-rounder — a 'maybe' that hangs on whether the S Pen matters to you.
• It's 'an excellent phone you probably can't buy' — one of the best devices that simply isn't officially sold in the US.