ASUS Zenfone 12 Ultra vs Samsung Galaxy S25

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

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

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

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

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

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