What you should know
What matters about this phone
The Zenfone 12 Ultra is a large conventional flagship, despite the Zenfone name once being associated with unusually compact phones.
The model belongs to the 2025 original-release cohort; a defensible universal first-sale day is not yet established from the cited documents. Initial market evidence: February 2025 introduction; first retail day pending.
Design, screen and everyday experience
Its strong Snapdragon platform and capable display compete with other premium Androids. The central purchase issue is whether ASUS’s UI choices and regional service network match what Samsung and Google offer.
Cameras and practical compromises
The camera system is capable but not automatically a reason to abandon camera-centric rivals. AI editing and stabilization should be weighed by real outcomes rather than slogans.
Strengths, weaknesses and the independent review
Notebookcheck highlights high speed and improved eSIM support, while noting heat and limited sustainability/long-term support marks. That makes extended software policy a serious consideration for premium buyers.
Notebookcheck’s full review praises speed and eSIM introduction while finding thermal and long-term support compromises. The findings are attributable to Notebookcheck; they are not tests performed by GearVerity.
Who should buy it — and who should avoid it?
Worth considering for: Someone who wants a Snapdragon flagship and likes ASUS’s software decisions.
A poor fit for: People wanting a truly compact Zenfone, unmatched camera reach or the longest support terms.
2026 purchase, regional and software checks
Availability is more limited than some mainstream flagships.
Verify ASUS support end date and market-specific service.
Relevant alternatives
Cross-shop Galaxy S25+; OnePlus 13; Xiaomi 15 Ultra. Compare availability, charging ecosystem, camera priorities and verified support before choosing.
Verified technical highlights
- Chipset: Snapdragon 8 Elite
- Display: 6.78-inch OLED
- Battery: 5,500mAh
Sources and further reading
Detailed specifications
Only recorded manufacturer-backed values are listed. Missing values are omitted rather than guessed; regional variants can differ.
Display
| Display | 6.78-inch OLED |
|---|
Performance & storage
| Chipset | Snapdragon 8 Elite |
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Battery & charging
| Battery | 5,500mAh |
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Sources and limitations
This is an editorial synthesis—not a claim that GearVerity physically tested the unit. Confirm region, availability, price, software support, and configuration with the manufacturer or retailer.