15 Ultra vs Poco F8 Pro

Phone 1

Phone 2

Winner

Xiaomi Poco F8 Pro

Lifespan decides this one: the Poco F8 Pro is supported until Nov 2031 at $10.72 per month of safe use, while the 15 Ultra runs out in Mar 2030 ($30.36/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · Poco F8 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.

Xiaomi 15 Ultra $1350

Safe to buy$30.36/mo

2025◆ Buy-by Mar 20282030

Xiaomi Poco F8 Pro $700

Safe to buy$10.72/mo

2025◆ Buy-by Nov 20292031

Category by category

Display

15 Ultra 100Poco F8 Pro 70

The 15 Ultra's screen is the better one — 6.73-inch 2k (1440×3200) ltpo amoled, 1–120hz, up to 3200 nits peak.

Performance

15 Ultra 98Poco F8 Pro 98

Performance is a wash — same chip tier.

Camera

15 Ultra 96Poco F8 Pro 79

The 15 Ultra has the stronger camera system (4 real rear lenses vs 3).

Battery

15 Ultra 88Poco F8 Pro 100

6,210mAh vs 5,410mAh — the Poco F8 Pro lasts longer between charges.

Software longevity

15 Ultra 53Poco F8 Pro 78

The Poco F8 Pro is supported until Nov 2031 — 21 months longer than the 15 Ultra.

Value

15 Ultra 65Poco F8 Pro 74

Overall value goes to the Poco F8 Pro at $10.72 per month of safe use.

Full spec table

Spec	15 Ultra	Poco F8 Pro
Price (street)	$1350	$700
Display	6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak	6.59-inch AMOLED LTPS, FHD+, 120Hz
Chipset	Qualcomm Snapdragon 8 Elite (3nm)	Qualcomm Snapdragon 8 Elite
RAM	16GB	12GB
Storage	512GB/1TB	256GB/512GB
Battery	5,410 mAh	6,210 mAh
Charging	90W wired, 80W wireless	100W wired
Rear cameras	50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto	50MP main, 50MP telephoto, 8MP ultra-wide
Dimensions	161.3 × 75.3 × 9.35 mm	157.5 × 75.3 × 8.0 mm
Weight	226 g	199 g
Water resistance	IP68	IP68
Supported until	Mar 2030	Nov 2031

15 Ultra full verdict →Poco F8 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.