ASUS Zenfone 12 Ultra vs OnePlus 13R

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

OnePlus 13R

The 6.78-inch LTPO AMOLED display delivers 120Hz, 2780x1264 resolution, and 4,500 nits peak brightness — one of the best screens at this price.

• LTPO AMOLED panel delivers sharp, vibrant visuals with excellent color reproduction across sRGB and DCI-P3 gamuts
• Real-world auto brightness of around 1,223 nits provides comfortable outdoor visibility in direct sunlight

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

OnePlus 13R

Snapdragon 8 Gen 3 delivers flagship-tier burst performance, but lab testing reveals significant thermal throttling under sustained workloads.

• Snapdragon 8 Gen 3 delivers exceptional burst performance, making it one of the most powerful phones at this price
• Day-to-day performance is silky smooth — no lag, hiccups, or slowdowns with OxygenOS optimizations
• Thermal throttling is a concern: 3DMark tests show GPU stability of only 54% with CPU throttling to 64% under extended load

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

OnePlus 13R

Main camera and new 2x telephoto deliver solid results, but the 8MP ultrawide is a consistent weak point that drags down the system.

• The 50MP main camera produces sharp daylight stills with wide dynamic range and vibrant-but-accurate colors
• The new 50MP 2x telephoto is a significant upgrade over the old macro lens, delivering sharp images with nice colors
• The 8MP ultrawide is the clear weakness — soft, lacking detail, with limited dynamic range that reviewers universally criticize
• Video recording is limited: 4K restricted to select cameras with mediocre stabilization compared to the competition