ROG Phone 9 Pro vs Zenfone 12 Ultra

Phone 1

Phone 2

Winner

Asus ROG Phone 9 Pro

Lifespan decides this one: the ROG Phone 9 Pro is supported until Nov 2029 at $24.33 per month of safe use, while the Zenfone 12 Ultra runs out in Feb 2029 ($29.99/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 9 Pro 59 · Zenfone 12 Ultra 58 — methodology

The lifespan decider

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

Asus ROG Phone 9 Pro $1000

Safe to buy$24.33/mo

2024◆ Buy-by Nov 20272029

Asus Zenfone 12 Ultra $950

Buy with care$29.99/mo

2025◆ Buy-by Feb 20272029

Category by category

Display

ROG Phone 9 Pro 60Zenfone 12 Ultra 70

The Zenfone 12 Ultra's screen is the better one — 6.78-inch amoled, fhd+, 144hz, gorilla glass victus 2.

Performance

ROG Phone 9 Pro 98Zenfone 12 Ultra 98

Performance is a wash — same chip tier.

Camera

ROG Phone 9 Pro 79Zenfone 12 Ultra 79

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

Battery

ROG Phone 9 Pro 96Zenfone 12 Ultra 90

5,800mAh vs 5,500mAh — the ROG Phone 9 Pro lasts longer between charges.

Software longevity

ROG Phone 9 Pro 49Zenfone 12 Ultra 38

The ROG Phone 9 Pro is supported until Nov 2029 — 9 months longer than the Zenfone 12 Ultra.

Value

ROG Phone 9 Pro 59Zenfone 12 Ultra 58

Pound for pound, these two are equally good deals.

Full spec table

Spec	ROG Phone 9 Pro	Zenfone 12 Ultra
Price (street)	$1000	$950
Display	6.78-inch flexible LTPO AMOLED, FHD+ (1080×2400), 1–185Hz, 2500-nit peak	6.78-inch AMOLED, FHD+, 144Hz, Gorilla Glass Victus 2
Chipset	Snapdragon 8 Elite	Qualcomm Snapdragon 8 Elite (3nm)
RAM	16GB/24GB	12GB/16GB
Storage	512GB/1TB	256GB/512GB
Battery	5,800 mAh	5,500 mAh
Charging	65W wired (HyperCharge), 15W Qi wireless	65W wired, 15W wireless
Rear cameras	50MP main (Sony Lytia 700 1/1.56-inch, gimbal OIS), 13MP ultra-wide (120-degree), 32MP telephoto 3x (OIS)	50MP main, 32MP telephoto, 13MP ultra-wide
Dimensions	163.8 × 76.8 × 8.9 mm	163.8 × 77.0 × 8.9 mm
Weight	227 g	220 g
Water resistance	IP68	IP68
Supported until	Nov 2029	Feb 2029

ROG Phone 9 Pro full verdict →Zenfone 12 Ultra full verdict →Longevity master board →

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