Samsung Galaxy S25 vs Xiaomi 15

Samsung Galaxy S25

The 6.2-inch Dynamic AMOLED 2X display delivers outstanding brightness, color accuracy, and smoothness. Anti-reflective coating ensures excellent outdoor visibility.

• 120Hz LTPO display is butter smooth with class-leading brightness
• Anti-reflective coating makes it the most sunlight-readable compact phone available

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

Samsung Galaxy S25

The Snapdragon 8 Elite chip brings significant performance and efficiency gains. Galaxy AI features run smoothly on-device, and daily performance is exceptional.

• After three years making essentially the same phone, Samsung has nailed it — better than its predecessors in almost every way, beating the iPhone 16 in performance
• Galaxy AI features are genuinely useful and well-integrated into the daily experience
• On-device AI processing is noticeably faster than cloud-based alternatives

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

Samsung Galaxy S25

The 50MP main + 12MP ultrawide + 10MP 3x telephoto setup delivers reliable results. AI photo editing tools add genuine value, though hardware improvements over S24 are minimal.

• Camera experience is just okay — display is excellent, performance is on point, but cameras need more attention
• Galaxy AI photo editing features like Generative Edit genuinely improve the experience
• Hardware is largely unchanged from S24 — feels like Samsung is coasting on software improvements alone

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