Oppo Find X9 Pro vs Samsung Galaxy S25 Ultra

Oppo Find X9 Pro

The 6.78-inch AMOLED with 3,600 nits peak brightness is among the brightest smartphone displays ever made. Sharp at 1272x2772 pixels with Dolby Vision support and 120Hz refresh rate. Universally praised with no notable weaknesses identified across reviews.

• 3,600 nits peak brightness — among the brightest smartphone displays ever produced
• Fully flat AMOLED with narrow symmetrical bezels, 120Hz, and Dolby Vision — universally praised

Samsung Galaxy S25 Ultra

The 6.9-inch Dynamic AMOLED 2X display with 2600 nit peak brightness and anti-reflective coating is universally praised as the best smartphone display available.

• 2600 nit peak brightness with anti-reflective coating makes it the most sunlight-readable phone
• 120Hz LTPO refresh rate is butter smooth with excellent touch response

Oppo Find X9 Pro

The Dimensity 9500 delivers excellent day-to-day performance with smooth app launching and multitasking. However, NotebookCheck documented up to 80% performance loss under sustained load, with the CPU quickly dropping to ~50% of initial benchmark results. Extended gaming sessions and 4K video recording trigger noticeable heat buildup.

• Excellent day-to-day performance — instant fingerprint scanner, smooth multitasking and app launching
• Up to 80% performance loss under sustained load — severe thermal throttling documented by NotebookCheck
• Heat buildup during extended gaming and 4K video recording limits sustained performance

Samsung Galaxy S25 Ultra

Snapdragon 8 Elite delivers the fastest Android performance available with excellent efficiency. 12GB RAM handles multitasking and AI workloads effortlessly.

• Snapdragon 8 Elite is a beast — fastest Android chip with significant efficiency gains
• On-device AI processing is noticeably faster than cloud-based alternatives
• Thermals are well-managed with the larger vapor chamber — no throttling in sustained use

Oppo Find X9 Pro

The camera system is the Oppo Find X9 Pro's crown jewel. MKBHD named it Best Camera Phone of 2025, and DxOMark awarded a score of 166 (5th globally). The 200MP Hasselblad telephoto is the standout — superb 3x optical zoom with usable crops at 6x and beyond. The 50MP main camera delivers natural, balanced processing, and the ultrawide with autofocus is strong. AI processing can occasionally be too aggressive.

• Named "Best Camera Phone of 2025" by MKBHD — "these triple cameras can do anything, not too over-processed, just right"
• 200MP Hasselblad telephoto with 1/1.56" sensor delivers superb 3x optical zoom and usable 6x-13x crops
• DxOMark camera score of 166 (Photo 169, Video 159) — ranked 5th globally at time of testing
• AI processing can be aggressive — occasionally boosting contrast and saturation unnaturally, skin tones can look plastic-like

Samsung Galaxy S25 Ultra

The quad camera system features an improved 200MP main sensor, 50MP ultrawide, 10MP 3x telephoto, and 50MP 5x periscope. Galaxy AI enhances post-processing significantly.

• 200MP main sensor produces incredibly detailed shots with improved noise handling
• Galaxy AI photo editing (Generative Edit, Best Face) is genuinely useful and well-implemented
• Video recording improvements with LOG support appeal to content creators
• Night mode still trails iPhone 16 Pro in very low light scenarios

Oppo Find X9 Pro

Record-breaking battery life. The 7,500mAh silicon-carbon battery delivered the highest endurance score GSMArena has ever recorded — nearly 22 hours of active use. PhoneArena called it the best battery life tested in two years. This is easily a 2-day phone that can approach 3 days with conservative use. 80W wired and 50W wireless charging complete the package.

• GSMArena Active Use Score of 21:57 hours — the highest ever recorded by the publication
• PhoneArena: best battery life tested in the past two years — 25.5 hours web browsing, easily a 2-3 day phone
• 80W wired charging fills 0-100% in approximately 45 minutes with 50W wireless charging support

Samsung Galaxy S25 Ultra

The 5000mAh battery paired with Snapdragon 8 Elite efficiency delivers solid all-day battery life, though charging speeds remain conservative.

• Easily lasts a full day with heavy use, and two days with moderate use
• 45W wired charging is adequate but slow compared to OnePlus and Xiaomi offerings