Nothing Phone (3) vs Xiaomi 15 Ultra

Nothing Phone (3)

A sharp 6.7-inch LTPO AMOLED with 120Hz and up to 2,000 nits peak brightness delivers a smooth, vibrant viewing experience.

• The LTPO OLED panel is bright, responsive, and color-accurate — a significant improvement over the Phone (2) display
• Peak brightness of 2,000 nits is good but falls behind Samsung and Apple flagships hitting 3,000 nits

Xiaomi 15 Ultra

A stunning 6.73-inch 2K LTPO AMOLED with 120Hz, 3,200 nits peak brightness, and Dolby Vision support.

• 3,200 nits peak brightness is the highest of any smartphone tested, with excellent outdoor visibility and HDR performance
• 2K resolution with 120Hz LTPO delivers incredibly sharp, smooth visuals for gaming and media consumption

Nothing Phone (3)

The triple camera system co-developed with Samsung is a major upgrade, though processing still trails the best in challenging conditions.

• The 50MP main camera produces detailed, well-exposed shots in good light that compete with phones costing $200 more
• Telephoto lens addition brings welcome versatility with clean 3x optical zoom results
• Night mode and low-light processing lag behind Google and Samsung — images lack the computational magic of Pixel phones
• Video stabilization and dynamic range are adequate but noticeably behind iPhone and Galaxy flagships in side-by-side tests

Xiaomi 15 Ultra

The crown jewel — a triple Leica camera system with a 1-inch main sensor, 200MP telephoto, and 50MP ultrawide that redefines smartphone photography.

• The 1-inch main sensor captures more light and detail than any competing smartphone camera — photos have a depth and quality that approaches dedicated cameras
• 200MP telephoto with 4.3x optical zoom produces incredibly detailed zoom shots that rival the Galaxy S25 Ultra's 5x periscope
• Leica color science produces warm, film-like tones with natural skin rendering that photographers love
• Video stabilization is the best on any Android phone, though color consistency and dynamic range in video still trail the iPhone

Nothing Phone (3)

Snapdragon 8 Elite puts the Nothing Phone (3) in the same performance tier as Samsung Galaxy S25 and OnePlus 13.

• Snapdragon 8 Elite provides genuinely flagship-level performance — gaming, multitasking, and app launches are all top-tier
• Nothing OS 3 is lightweight enough to let the hardware shine, with smooth animations and minimal background resource consumption
• Thermals are well managed with the aluminum frame acting as a heat sink, keeping sustained performance respectable

Xiaomi 15 Ultra

Snapdragon 8 Elite with 16GB RAM delivers the fastest Android performance available with excellent thermal management.

• Snapdragon 8 Elite with 16GB RAM makes this one of the fastest phones tested — no app or game can slow it down
• Liquid cooling system keeps sustained performance high with minimal throttling during extended gaming sessions
• 16GB RAM ensures smooth multitasking with dozens of apps in memory and efficient AI processing

Nothing Phone (3)

A 5,500mAh battery provides solid full-day endurance with 45W wired and 15W wireless charging.

• Battery comfortably lasts a full day of heavy use with the 5,500mAh cell and efficient Snapdragon 8 Elite
• 45W wired charging reaches 50% in about 25 minutes and full charge in under an hour
• 15W wireless charging is included — a feature missing from the OnePlus 13R at a similar price

Xiaomi 15 Ultra

A 5,500mAh battery with 90W wired and 50W wireless charging delivers both excellent endurance and class-leading charging speeds.

• 90W wired charging fills the 5,500mAh battery from 0 to 100% in about 35 minutes — among the fastest in any flagship
• Battery easily lasts a full day of heavy use including intensive camera work and gaming
• 50W wireless charging is fast enough to replace wired charging for most daily use scenarios

Nothing Phone (3)

Nothing OS 3 offers a clean, near-stock Android experience with distinctive monochrome widgets and Glyph integration.

• Nothing OS 3 is refreshingly clean with thoughtful touches like monochrome widget themes and Glyph app integration
• Only 3 years of OS updates and 4 years of security patches — significantly less than Samsung and Google 7-year commitments

Xiaomi 15 Ultra

HyperOS 2 on Android 15 is feature-rich but divisive — powerful customization options are offset by ads and bloatware in some regions.

• HyperOS 2 is more polished than MIUI, with smooth animations, useful sidebar multitasking, and deep customization
• Pre-installed apps and occasional ads in system UI detract from the premium experience in some regional variants
• Four years of OS updates and five years of security updates — decent but short of Samsung and Google seven-year commitments