PhoneLifespan

Zenfone 12 Ultra vs Open

vs

It depends

Too close to call outright

These two are within 1 point overall — it genuinely depends on price on the day. The Zenfone 12 Ultra edges both longevity and performance, so prefer it when prices are close.

Value Score: Zenfone 12 Ultra 58 · Open 57 methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Asus Zenfone 12 Ultra $950
Buy with care$29.99/mo
2025◆ Buy-by Feb 20272029
OnePlus Open $900
Buy with care$32.07/mo
2023◆ Buy-by Oct 20262028

Category by category

Display
Zenfone 12 Ultra 70Open 90

The Open's screen is the better one — 7.82-inch 2k ltpo3 fluid amoled inner foldable (2440×2268, 426 ppi) + 6.31-inch 2k amoled cover (2484×1116, 431 ppi), both 120hz, up to 2800 nits peak.

Performance
Zenfone 12 Ultra 98Open 85

The Zenfone 12 Ultra's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera
Zenfone 12 Ultra 79Open 79

Camera systems are comparable on paper — pick by sample photos.

Battery
Zenfone 12 Ultra 90Open 76

5,500mAh vs 4,805mAh — the Zenfone 12 Ultra lasts longer between charges.

Software longevity
Zenfone 12 Ultra 38Open 33

The Zenfone 12 Ultra is supported until Feb 2029 — 4 months longer than the Open.

Value
Zenfone 12 Ultra 58Open 57

Pound for pound, these two are equally good deals.

Full spec table
SpecZenfone 12 UltraOpen
Price (street)$950$900
Display6.78-inch AMOLED, FHD+, 144Hz, Gorilla Glass Victus 27.82-inch 2K LTPO3 Fluid AMOLED inner foldable (2440×2268, 426 ppi) + 6.31-inch 2K AMOLED cover (2484×1116, 431 ppi), both 120Hz, up to 2800 nits peak
ChipsetQualcomm Snapdragon 8 Elite (3nm)Snapdragon 8 Gen 2
RAM12GB/16GB16GB
Storage256GB/512GB512GB
Battery5,500 mAh4,805 mAh
Charging65W wired, 15W wireless67W SUPERVOOC wired, no wireless
Rear cameras50MP main, 32MP telephoto, 13MP ultra-wide48MP main, 48MP ultra-wide, 64MP periscope telephoto 3x
Dimensions163.8 × 77.0 × 8.9 mmUnfolded 153.4 × 143.1 × 5.8 mm; Folded 153.4 × 73.3 × 11.7 mm
Weight220 g239 g
Water resistanceIP68IPX4
Supported untilFeb 2029Oct 2028

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.