PhoneLifespan

14 vs 15T Pro

vs

Winner

Xiaomi 15T Pro

Lifespan decides this one: the 15T Pro is supported until Sep 2030 at $12.65 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 Pro 69 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 Pro $650
Safe to buy$12.65/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
14 8015T Pro 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 Pro 94

Performance is a wash — same chip tier.

Camera
14 7915T Pro 79

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

Battery
14 7215T Pro 90

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

Software longevity
14 3915T Pro 61

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

Value
14 6515T Pro 69

Overall value goes to the 15T Pro at $12.65 per month of safe use.

Full spec table
Spec1415T Pro
Price (street)$550$650
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 9400+
RAM12GB12GB
Storage256GB/512GB256GB/512GB/1TB
Battery4,610 mAh5,500 mAh
Charging90W wired, 50W wireless90W wired, 50W wireless
Rear cameras50MP main (Leica Summilux, f/1.6, OIS), 50MP ultra-wide (115° FOV), 50MP telephoto (Leica 75mm floating, OIS)50MP main, 50MP telephoto 5x periscope, 12MP ultra-wide
Dimensions152.8 × 71.5 × 8.2 mm162.7 × 77.9 × 8.0 mm
Weight193 g210 g
Water resistanceIP68IP68
Supported untilFeb 2029Sep 2030

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