PhoneLifespan

14 vs 15T

vs

Winner

Xiaomi 15T

Lifespan decides this one: the 15T is supported until Sep 2030 at $9.73 per month of safe use, while the 14 runs out in Feb 2029 ($16.95/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 14 65 · 15T 70 — methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Xiaomi 14 $550
Buy with care$16.95/mo
2024◆ Buy-by Feb 20272029
Xiaomi 15T $500
Safe to buy$9.73/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
14 8015T 70

The 14's screen is the better one — 6.36-inch ltpo amoled, 2670×1200 (460 ppi), 1–120hz, 1000 nits typical / up to 3000 nits peak.

Performance
14 9215T 78

The 14's Snapdragon 8 Gen 3 is simply the faster chip.

Camera
14 7915T 79

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

Battery
14 7215T 90

5,500mAh vs 4,610mAh — the 15T lasts longer between charges.

Software longevity
14 3915T 61

The 15T is supported until Sep 2030 — 19 months longer than the 14.

Value
14 6515T 70

Overall value goes to the 15T at $9.73 per month of safe use.

Full spec table
Spec1415T
Price (street)$550$500
Display6.36-inch LTPO AMOLED, 2670×1200 (460 ppi), 1–120Hz, 1000 nits typical / up to 3000 nits peak6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetSnapdragon 8 Gen 3MediaTek Dimensity 8400-Ultra
RAM12GB12GB
Storage256GB/512GB256GB/512GB
Battery4,610 mAh5,500 mAh
Charging90W wired, 50W wireless67W wired
Rear cameras50MP main (Leica Summilux, f/1.6, OIS), 50MP ultra-wide (115° FOV), 50MP telephoto (Leica 75mm floating, OIS)50MP main, 50MP telephoto 2x, 12MP ultra-wide
Dimensions152.8 × 71.5 × 8.2 mm163.2 × 78.0 × 7.5 mm
Weight193 g194 g
Water resistanceIP68IP68
Supported untilFeb 2029Sep 2030
14 full verdict →15T 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.