PhoneLifespan

15T vs Poco F8 Pro

vs

It depends

Too close to call outright

These two are within 4 points overall — it genuinely depends on price on the day. The Poco F8 Pro edges both longevity and performance, so prefer it when prices are close.

Value Score: 15T 70 · 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 15T $500
Safe to buy$9.76/mo
2025◆ Buy-by Sep 20282030
Xiaomi Poco F8 Pro $700
Safe to buy$10.72/mo
2025◆ Buy-by Nov 20292031

Category by category

Display
15T 70Poco F8 Pro 70

Both displays are effectively the same class.

Performance
15T 78Poco F8 Pro 98

The Poco F8 Pro's Qualcomm Snapdragon 8 Elite is simply the faster chip.

Camera
15T 79Poco F8 Pro 79

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

Battery
15T 90Poco F8 Pro 100

6,210mAh vs 5,500mAh — the Poco F8 Pro lasts longer between charges.

Software longevity
15T 61Poco F8 Pro 78

The Poco F8 Pro is supported until Nov 2031 — 14 months longer than the 15T.

Value
15T 70Poco F8 Pro 74

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

Full spec table
Spec15TPoco F8 Pro
Price (street)$500$700
Display6.83-inch AMOLED, 2772x1280, 144Hz6.59-inch AMOLED LTPS, FHD+, 120Hz
ChipsetMediaTek Dimensity 8400-UltraQualcomm Snapdragon 8 Elite
RAM12GB12GB
Storage256GB/512GB256GB/512GB
Battery5,500 mAh6,210 mAh
Charging67W wired100W wired
Rear cameras50MP main, 50MP telephoto 2x, 12MP ultra-wide50MP main, 50MP telephoto, 8MP ultra-wide
Dimensions163.2 × 78.0 × 7.5 mm157.5 × 75.3 × 8.0 mm
Weight194 g199 g
Water resistanceIP68IP68
Supported untilSep 2030Nov 2031

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