ROG Phone 9 vs Zenfone 11 Ultra

Phone 1

Phone 2

Winner

Asus ROG Phone 9

Lifespan decides this one: the ROG Phone 9 is supported until Nov 2029 at $24.35 per month of safe use, while the Zenfone 11 Ultra runs out in Mar 2028 ($28.82/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: ROG Phone 9 58 · Zenfone 11 Ultra 61 — 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 $999

Safe to buy$24.35/mo

2024◆ Buy-by Nov 20272029

Asus Zenfone 11 Ultra $600

Buy with care$28.82/mo

2024◆ Buy-by Mar 20262028

Category by category

Display

ROG Phone 9 60Zenfone 11 Ultra 70

The Zenfone 11 Ultra's screen is the better one — 6.78-inch flexible e6 amoled, fhd+ (1080×2400), 144hz, 2500-nit peak, 107% dci-p3.

Performance

ROG Phone 9 98Zenfone 11 Ultra 92

The ROG Phone 9's Qualcomm Snapdragon 8 Elite is simply the faster chip.

Camera

ROG Phone 9 67Zenfone 11 Ultra 79

The Zenfone 11 Ultra has the stronger camera system (3 real rear lenses vs 2).

Battery

ROG Phone 9 96Zenfone 11 Ultra 90

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

Software longevity

ROG Phone 9 49Zenfone 11 Ultra 25

The ROG Phone 9 is supported until Nov 2029 — 20 months longer than the Zenfone 11 Ultra.

Value

ROG Phone 9 58Zenfone 11 Ultra 61

Pound for pound, these two are equally good deals.

Full spec table

Spec	ROG Phone 9	Zenfone 11 Ultra
Price (street)	$999	$600
Display	6.78-inch LTPO AMOLED, 1080x2400, 185Hz	6.78-inch flexible E6 AMOLED, FHD+ (1080×2400), 144Hz, 2500-nit peak, 107% DCI-P3
Chipset	Qualcomm Snapdragon 8 Elite	Snapdragon 8 Gen 3
RAM	12GB/16GB	12GB/16GB
Storage	256GB/512GB	256GB/512GB
Battery	5,800 mAh	5,500 mAh
Charging	65W wired, 15W wireless	65W wired (HyperCharge), 15W Qi wireless
Rear cameras	50MP main, 13MP ultra-wide, 5MP macro	50MP main (Sony IMX890 1/1.56-inch, gimbal OIS), 13MP ultra-wide (120-degree), 32MP telephoto 3x (OIS)
Dimensions	163.8 × 76.8 × 8.9 mm	163.8 × 76.8 × 8.9 mm
Weight	227 g	224 g
Water resistance	IP68	IP68
Supported until	Nov 2029	Mar 2028

ROG Phone 9 full verdict →Zenfone 11 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.