ASUS Zenfone 12 Ultra vs Oppo Find X9 Pro

ASUS Zenfone 12 Ultra

The 6.78-inch Samsung E6 AMOLED panel delivers 2,500 nits peak brightness with LTPO adaptive 1-120Hz (144Hz for gaming). Vivid colors and excellent outdoor readability are let down by FHD+ resolution at a price where competitors offer QHD+, and poor minimum brightness.

• 2,500 nits peak brightness with LTPO 1-120Hz and 144Hz gaming mode — vivid and responsive
• Same display panel as the Zenfone 11 Ultra — no improvement whatsoever year-over-year
• Only FHD+ resolution at EUR 1,099 — competitors offer QHD+ at this price tier

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

ASUS Zenfone 12 Ultra

Snapdragon 8 Elite delivers class-leading performance — described as "the fastest phone I used in 2025" by Android Central. The clean, near-stock Android 15 experience with no bloatware makes it one of the most fluid Android phones available. On-device Meta Llama 3 AI processing is private but slow.

• "The fastest phone I used in 2025" — Snapdragon 8 Elite with the best-tuned software on Android
• Clean near-stock Android 15 with zero bloatware — extremely fluid and well-optimized
• On-device Meta Llama 3 AI is privacy-friendly but slow — often faster to just do the task manually
• Aggressive thermal throttling under sustained loads — GPU benchmark scores lower than expected

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

ASUS Zenfone 12 Ultra

The standout is the 6-axis Hybrid Gimbal Stabilizer 4.0 which delivers uniquely impressive video stabilization — a 66% improvement over the predecessor. The 50MP main camera is solid in good light, but HDR processing produces visible ghosting artifacts, dynamic range suffers with crushed shadows and clipped highlights, and the overall camera system doesn't compete at this price tier.

• 6-axis Hybrid Gimbal Stabilizer is uniquely excellent for video — best-in-class stabilization
• HDR processing leaves visible ghosting artifacts in photos — a shocking flaw for a 2025 flagship
• Dynamic range issues: shadows frequently crushed, highlights clipped, colors washed out and cold
• "Better than midrange but not flagship level" — not competitive with Galaxy S25 Ultra or Pixel 9 Pro

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

ASUS Zenfone 12 Ultra

The 5,500mAh dual-cell battery delivers excellent all-day endurance that approaches two days for lighter users. 65W wired charging goes from 0-77% in 30 minutes, and Qi 1.3 wireless charging is included. Battery specs are unchanged from the Zenfone 11 Ultra.

• 5,500mAh battery delivers excellent all-day endurance — close to two days for light users
• 65W wired charging reaches 77% in 30 minutes with Qi 1.3 wireless charging support
• Same battery specs as Zenfone 11 Ultra — 65W charging falls behind competitors offering 100W+

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

ASUS Zenfone 12 Ultra

The cleanest Android experience available on a non-Pixel phone, with near-stock Android 15 and zero bloatware. On-device AI via Meta Llama 3 is a privacy-forward approach. But ASUS's devastating update policy — only 2 Android updates and 5 years of security patches — is the phone's single biggest failure at EUR 1,099.

• Cleanest near-stock Android experience on a non-Pixel phone — zero bloatware, extremely fluid
• Only 2 Android OS updates is universally condemned — worst update policy among 2025 flagships
• AI features described as "overkill" and "a lesson in short-term thinking" — often slower than manual alternatives

Oppo Find X9 Pro

ColorOS 16 on Android 16 with a comprehensive AI suite including Gemini, Circle to Search, AI Eraser, and more. Oppo promises 5 OS updates and 6 years of security patches — good but behind Samsung and Google's 7 years. The biggest complaint is 59 pre-installed apps including ads and suggested app folders on a premium device.

• Comprehensive AI suite: Gemini, Circle to Search, AI Eraser, AI Ultra Clarity, AI Recompose, and more
• 59 pre-installed apps including 7 third-party apps and suggested app folders (ads) on a premium device
• 5 OS updates and 6 years of security patches — good but trails Samsung and Google's 7-year commitments