PhoneLifespan

15 Ultra vs Poco F7 Ultra

vs

Winner

Xiaomi Poco F7 Ultra

Lifespan decides this one: the Poco F7 Ultra is supported until Mar 2031 at $12.22 per month of safe use, while the 15 Ultra runs out in Mar 2030 ($30.40/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · Poco F7 Ultra 71 — 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$30.40/mo
2025◆ Buy-by Mar 20282030
Xiaomi Poco F7 Ultra $699
Safe to buy$12.22/mo
2025◆ Buy-by Mar 20292031

Category by category

Display
15 Ultra 100Poco F7 Ultra 80

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 F7 Ultra 98

Performance is a wash — same chip tier.

Camera
15 Ultra 96Poco F7 Ultra 79

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

Battery
15 Ultra 88Poco F7 Ultra 86

Battery capacities are close enough not to decide this.

Software longevity
15 Ultra 53Poco F7 Ultra 68

The Poco F7 Ultra is supported until Mar 2031 — 13 months longer than the 15 Ultra.

Value
15 Ultra 65Poco F7 Ultra 71

Overall value goes to the Poco F7 Ultra at $12.22 per month of safe use.

Full spec table
Spec15 UltraPoco F7 Ultra
Price (street)$1350$699
Display6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak6.67-inch AMOLED, 3200x1440 (WQHD+), 120Hz
ChipsetQualcomm Snapdragon 8 Elite (3nm)Qualcomm Snapdragon 8 Elite
RAM16GB12GB/16GB
Storage512GB/1TB256GB/512GB
Battery5,410 mAh5,300 mAh
Charging90W wired, 80W wireless120W wired, 50W wireless
Rear cameras50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto50MP main, 50MP telephoto 2.5x, 32MP ultra-wide
Dimensions161.3 × 75.3 × 9.35 mm160.3 × 75 × 8.4 mm
Weight226 g212 g
Water resistanceIP68IP68
Supported untilMar 2030Mar 2031
15 Ultra full verdict →Poco F7 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.