iPhone 17 Pro Max vs Xiaomi 15

iPhone 17 Pro Max

The 6.9-inch Super Retina XDR display pushes peak brightness to 3,000 nits with ProMotion 120Hz, making it the most sunlight-readable phone on the market.

• 3,000-nit peak brightness is a major jump that makes the phone perfectly readable even in direct sunlight — the best outdoor display on any phone
• Display stays brighter for longer under sustained sunlight thanks to the vapor chamber thermal management
• Color accuracy and HDR performance remain class-leading with excellent DCI-P3 coverage

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
• OLED smear visible at lower brightness levels (0-70% range) — a recurring user complaint

iPhone 17 Pro Max

The triple 48MP camera system delivers refined computational photography with improved low-light performance, though hardware changes are evolutionary rather than revolutionary.

• All three rear cameras now use 48MP sensors, providing consistently high detail across ultrawide, main, and telephoto shots
• Low-light photography takes a meaningful step forward with cleaner noise handling and better night sky detail
• Video recording remains the gold standard — no Android phone comes close to the ProRes and LOG workflow quality
• Compared to the 16 Pro Max, the camera hardware upgrades feel incremental — the differences are often only visible in side-by-side comparisons

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

iPhone 17 Pro Max

The A19 Pro chip combined with vapor chamber cooling delivers best-in-class sustained performance with 40% better thermal management than the previous generation.

• A19 Pro benchmarks show a meaningful single-core leap and the best sustained performance of any smartphone tested — no throttling even under prolonged loads
• Gaming performance with vapor chamber cooling is noticeably smoother, with more consistent frame rates in demanding titles
• On-device AI processing through Apple Intelligence is fast and responsive, with live transcription and summarization working seamlessly

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