PhoneLifespan

15T vs Poco F7 Ultra

vs

It depends

Too close to call outright

These two are within 1 point overall — it genuinely depends on price on the day. The Poco F7 Ultra edges both longevity and performance, so prefer it when prices are close.

Value Score: 15T 70 · 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 15T $500
Safe to buy$9.73/mo
2025◆ Buy-by Sep 20282030
Xiaomi Poco F7 Ultra $699
Safe to buy$12.17/mo
2025◆ Buy-by Mar 20292031

Category by category

Display
15T 70Poco F7 Ultra 80

The Poco F7 Ultra's screen is the better one — 6.67-inch amoled, 3200x1440 (wqhd+), 120hz.

Performance
15T 78Poco F7 Ultra 98

The Poco F7 Ultra's Qualcomm Snapdragon 8 Elite is simply the faster chip.

Camera
15T 79Poco F7 Ultra 79

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

Battery
15T 90Poco F7 Ultra 86

5,500mAh vs 5,300mAh — the 15T lasts longer between charges.

Software longevity
15T 61Poco F7 Ultra 68

The Poco F7 Ultra is supported until Mar 2031 — 6 months longer than the 15T.

Value
15T 70Poco F7 Ultra 71

Pound for pound, these two are equally good deals.

Full spec table
Spec15TPoco F7 Ultra
Price (street)$500$699
Display6.83-inch AMOLED, 2772x1280, 144Hz6.67-inch AMOLED, 3200x1440 (WQHD+), 120Hz
ChipsetMediaTek Dimensity 8400-UltraQualcomm Snapdragon 8 Elite
RAM12GB12GB/16GB
Storage256GB/512GB256GB/512GB
Battery5,500 mAh5,300 mAh
Charging67W wired120W wired, 50W wireless
Rear cameras50MP main, 50MP telephoto 2x, 12MP ultra-wide50MP main, 50MP telephoto 2.5x, 32MP ultra-wide
Dimensions163.2 × 78.0 × 7.5 mm160.3 × 75 × 8.4 mm
Weight194 g212 g
Water resistanceIP68IP68
Supported untilSep 2030Mar 2031

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.