Motorola Razr Ultra 2025 vs Xiaomi 15

Motorola Razr Ultra 2025

Motorola

7.8

Very Good

Xiaomi 15

Xiaomi

7.8

Good

What Reviewers Agree On

The 4.5-inch external display is the best cover screen on any flip phone — fully functional for running any Android app without opening the phone
Camera quality has improved significantly over the Razr Ultra 2024, with the 50MP telephoto adding genuine versatility
The flip phone form factor remains compelling for portability — it genuinely fits in any pocket when folded
Build quality and hinge mechanism feel more refined and durable than previous generations
68W TurboPower charging is fast enough to top up quickly on the go

Deal Breakers

Only 3 years of Android OS updates and 4 years of security patches — the worst update commitment in its price class
Snapdragon 8s Gen 4 is a tier below Samsung's Snapdragon 8 Elite at the same price point

Detailed Comparison

Display

Motorola Razr Ultra 2025

The dual-display setup — 4.5-inch external AMOLED and 6.9-inch internal pOLED — provides versatility, though the internal crease remains visible.

The 4.5-inch external display at 1080x1272 is bright, responsive, and runs any app seamlessly — it's like having two phones in one
The 6.9-inch internal display with 120Hz refresh is vivid and smooth, adequate for when you need a full-size screen
The internal display crease is still visible and tactile — improved over last year but not as subtle as Samsung's latest fold technology

Xiaomi 15

The 6.36-inch 1.5K LTPO OLED is sharp, vibrant, and incredibly bright at 3,200 nits peak (tested up to 3,593 nits HDR). Ultra-narrow 1.38mm bezels and high-frequency PWM dimming above 3,000Hz round out an excellent display package, though OLED smear at lower brightness is a noted concern.

Peak brightness tested at 3,593 nits in HDR — among the brightest compact phone displays available
Ultra-narrow 1.38mm bezels with excellent color accuracy in Original Color PRO profile

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What Reviewers Agree On

One of the best compact Android flagships available in 2025
Battery life is a major upgrade over the Xiaomi 14 — excellent endurance from the 5,400mAh cell
Snapdragon 8 Elite delivers top-tier performance for daily tasks and gaming
Main Leica camera produces excellent photos with natural color science
Design is premium but very iterative over the Xiaomi 14

Deal Breakers

Thermal throttling under sustained loads — phone gets uncomfortably hot during extended gaming
Not available in the US — import prices eliminate the value advantage
Ultrawide camera quality is noticeably poor compared to main and telephoto lenses

Camera

Motorola Razr Ultra 2025

The dual 50MP camera system — main and telephoto — is a meaningful upgrade, and the cover screen viewfinder makes for excellent selfies.

The 50MP main camera delivers solid photos with natural colors and good dynamic range — a significant improvement over the 2024 model
The cover screen viewfinder lets you frame selfies with the main camera — delivering dramatically better selfie quality than any front-facing camera
Low-light photography is adequate but falls behind Samsung Galaxy Z Flip 7 and non-folding flagships in detail and noise management

Xiaomi 15

The triple 50MP Leica system shines with its main sensor and improved 2.6x telephoto, earning a DxOMark score of 146. Leica color profiles produce natural, pleasing images with excellent dynamic range. The ultrawide camera is the clear weakness, with noticeably more noise in low light and no autofocus.

50MP main Leica Summilux camera delivers excellent photo quality with natural colors and strong dynamic range
2.6x optical telephoto is a meaningful upgrade over the Xiaomi 14 — sharp and versatile
Ultrawide camera is the weakest link — subpar quality, no autofocus, noticeably more noise in low light
DxOMark camera score of 146 — good but not class-leading among 2025 flagships

Performance

Motorola Razr Ultra 2025

The Snapdragon 8s Gen 4 delivers smooth everyday performance but sits a tier below the competition's top chip at the same price.

Day-to-day performance is smooth and responsive — the 8s Gen 4 handles multitasking, social media, and general use without any lag
At $999, using a Snapdragon 8s Gen 4 instead of the full 8 Elite feels like a cost-cutting measure — Samsung's Z Flip 7 at the same price uses the top chip
Gaming is perfectly playable for casual titles but demanding games show the gap between the 8s Gen 4 and 8 Elite

Xiaomi 15

The Snapdragon 8 Elite with 12GB RAM delivers flagship-tier performance that's smooth and snappy for everyday use, gaming, and multitasking. However, the compact body struggles to dissipate heat under sustained loads, causing notable thermal throttling during extended gaming sessions.

Snapdragon 8 Elite scores ~2,990 single-core and ~9,114 multi-core on Geekbench 6 — genuinely fast
Thermal throttling is a real issue — fails to complete 3DMark GPU stress tests and gets uncomfortably hot
CPU throttles to 72-77% of peak under sustained load — compact chassis limits cooling capacity