Zenfone 11 Ultra vs 15 Pro

Phone 1

Phone 2

Winner

Xiaomi 15 Pro

Lifespan decides this one: the 15 Pro is supported until Oct 2030 at $12.37 per month of safe use, while the Zenfone 11 Ultra runs out in Mar 2028 ($28.54/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Zenfone 11 Ultra 61 · 15 Pro 74 — 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 11 Ultra $600

Buy with care$28.54/mo

2024◆ Buy-by Mar 20262028

Xiaomi 15 Pro $650

Safe to buy$12.37/mo

2024◆ Buy-by Oct 20282030

Category by category

Display

Zenfone 11 Ultra 7015 Pro 90

The 15 Pro's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.

Performance

Zenfone 11 Ultra 9215 Pro 98

The 15 Pro's Qualcomm Snapdragon 8 Elite is simply the faster chip.

Camera

Zenfone 11 Ultra 7915 Pro 79

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

Battery

Zenfone 11 Ultra 9015 Pro 100

6,100mAh vs 5,500mAh — the 15 Pro lasts longer between charges.

Software longevity

Zenfone 11 Ultra 2515 Pro 63

The 15 Pro is supported until Oct 2030 — 32 months longer than the Zenfone 11 Ultra.

Value

Zenfone 11 Ultra 6115 Pro 74

Overall value goes to the 15 Pro at $12.37 per month of safe use.

Full spec table

Spec	Zenfone 11 Ultra	15 Pro
Price (street)	$600	$650
Display	6.78-inch flexible E6 AMOLED, FHD+ (1080×2400), 144Hz, 2500-nit peak, 107% DCI-P3	6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz
Chipset	Snapdragon 8 Gen 3	Qualcomm Snapdragon 8 Elite
RAM	12GB/16GB	12GB/16GB
Storage	256GB/512GB	256GB/512GB/1TB
Battery	5,500 mAh	6,100 mAh
Charging	65W wired (HyperCharge), 15W Qi wireless	90W wired, 50W wireless
Rear cameras	50MP main (Sony IMX890 1/1.56-inch, gimbal OIS), 13MP ultra-wide (120-degree), 32MP telephoto 3x (OIS)	50MP main, 50MP ultra-wide, 50MP telephoto 5x
Dimensions	163.8 × 76.8 × 8.9 mm	161.3 × 74.6 × 8.4 mm
Weight	224 g	213 g
Water resistance	IP68	IP68
Supported until	Mar 2028	Oct 2030

Zenfone 11 Ultra full verdict →15 Pro 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.