Oppo Find X8 Ultra and Xiaomi 15 Ultra stand out as two of the most advanced Android flagships of 2025, showcasing cutting-edge innovations in design, performance, and especially mobile photography. While both are designed for premium users, their differences in hardware choices, camera capabilities, and pricing make this comparison essential for buyers seeking the best flagship for their needs.
Build & Design:
The Oppo Find X8 Ultra features a sleek and minimalist matte back with curved edges and an IP68/IP69-rated aluminum frame, offering a premium feel. In contrast, the Xiaomi 15 Ultra provides an eco-leather or aerospace-grade glass fiber back, also IP68-rated, but geared more toward ruggedness and professional use. Xiaomi’s added features such as dual eSIM support and an optional filter ring holder make it more appealing to photography enthusiasts and pro users.
Display Comparison:
Both devices offer LTPO AMOLED displays with 120Hz refresh rates and support for Dolby Vision and HDR Vivid.
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Oppo Find X8 Ultra: 6.82-inch panel, 2500 nits peak brightness
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Xiaomi 15 Ultra: 6.73-inch panel, 3200 nits peak brightness, 68 billion colors, higher pixel density
Xiaomi edges ahead with superior brightness and color accuracy, making it ideal for vibrant viewing even in outdoor lighting.
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Performance:
Both smartphones are powered by the Snapdragon 8 Elite chipset, paired with UFS 4.1 storage and up to 16GB RAM. While day-to-day performance is nearly identical, Xiaomi offers a longer software update cycle with HyperOS 2 and four guaranteed Android updates, surpassing Oppo’s ColorOS 15.
Battery & Charging:
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Oppo Find X8 Ultra: 6100mAh battery, 100W wired + 50W wireless charging
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Xiaomi 15 Ultra: 6000mAh (China) or 5410mAh (Global), 90W wired + 80W wireless charging
Oppo leads with slightly better battery endurance, but Xiaomi’s faster wireless charging and flexible top-up options make it more convenient for power users.
Camera Capabilities:
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Oppo: Quad setup with a 50MP 1.0″ main sensor, dual periscope telephoto lenses (up to 6x zoom), and Hasselblad color tuning
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Xiaomi: 50MP 1.0″ main sensor, 200MP periscope with 4.3x zoom, TOF 3D depth sensor, Leica optics, and support for 8K video
Xiaomi’s system is more tailored for professionals with higher resolution and pro tools like an optional 67mm filter ring. Oppo, however, provides better zoom versatility.
Front Camera:
Both sport 32MP front cameras with 4K video. Oppo includes PDAF for autofocus, making it better for vloggers and motion selfies. Xiaomi lacks PDAF but offers better software tuning and a wider aperture.
Price & Value:
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Oppo Find X8 Ultra: ~$1000
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Xiaomi 15 Ultra: ~$1500
Oppo delivers exceptional value for money with its flagship performance, zoom capabilities, satellite SOS, and longer battery life at a significantly lower price. Xiaomi justifies its premium price with cutting-edge camera hardware, 80W wireless charging, and tools for professional photography and media creation.
Unique Features:
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Xiaomi 15 Ultra: DisplayPort via USB-C, tri-band Wi-Fi 7, 8K video, barometer, Leica collaboration, two-way satellite communication
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Oppo Find X8 Ultra: Dolby Vision HDR on both cameras, emergency satellite SOS, large battery, and refined design
Final Verdict:
If you’re seeking top-tier performance and value, the Oppo Find X8 Ultra is the better choice for most mainstream users. It provides flagship-level features, strong battery life, and excellent cameras without the ultra-premium price.
If you’re a power user or content creator, the Xiaomi 15 Ultra offers unmatched tools like a 200MP telephoto camera, professional-grade accessories, and faster wireless charging—justifying its higher cost.
