Zenfone 11 Ultra vs 15T Pro

Phone 1

Phone 2

Winner

Xiaomi 15T Pro

Lifespan decides this one: the 15T Pro is supported until Sep 2030 at $12.65 per month of safe use, while the Zenfone 11 Ultra runs out in Mar 2028 ($28.56/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Zenfone 11 Ultra 61 · 15T Pro 69 — 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$28.56/mo

2024◆ Buy-by Mar 20262028

Xiaomi 15T Pro $650

Safe to buy$12.65/mo

2025◆ Buy-by Sep 20282030

Category by category

Display

Zenfone 11 Ultra 7015T Pro 70

Both displays are effectively the same class.

Performance

Zenfone 11 Ultra 9215T Pro 94

Performance is a wash — same chip tier.

Camera

Zenfone 11 Ultra 7915T Pro 79

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

Battery

Zenfone 11 Ultra 9015T Pro 90

Battery capacities are close enough not to decide this.

Software longevity

Zenfone 11 Ultra 2515T Pro 61

The 15T Pro is supported until Sep 2030 — 30 months longer than the Zenfone 11 Ultra.

Value

Zenfone 11 Ultra 6115T Pro 69

Overall value goes to the 15T Pro at $12.65 per month of safe use.

Full spec table

Spec	Zenfone 11 Ultra	15T Pro
Price (street)	$600	$650
Display	6.78-inch flexible E6 AMOLED, FHD+ (1080×2400), 144Hz, 2500-nit peak, 107% DCI-P3	6.83-inch AMOLED, 2772x1280, 144Hz
Chipset	Snapdragon 8 Gen 3	MediaTek Dimensity 9400+
RAM	12GB/16GB	12GB
Storage	256GB/512GB	256GB/512GB/1TB
Battery	5,500 mAh	5,500 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 telephoto 5x periscope, 12MP ultra-wide
Dimensions	163.8 × 76.8 × 8.9 mm	162.7 × 77.9 × 8.0 mm
Weight	224 g	210 g
Water resistance	IP68	IP68
Supported until	Mar 2028	Sep 2030

Zenfone 11 Ultra full verdict →15T 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.