15T vs Poco X7 5G

Phone 1

Phone 2

Winner

Xiaomi 15T

Lifespan decides this one: the 15T is supported until Sep 2030 at $9.76 per month of safe use, while the Poco X7 5G runs out in Jan 2029 ($7.47/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15T 70 · Poco X7 5G 75 — 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 X7 5G $230

Buy with care$7.47/mo

2025◆ Buy-by Jan 20272029

Category by category

Display

15T 70Poco X7 5G 80

The Poco X7 5G's screen is the better one — 6.67-inch amoled, 1.5k (446 ppi), 120hz, 3000 nits peak, gorilla glass victus 2.

Performance

15T 78Poco X7 5G 58

The 15T's MediaTek Dimensity 8400-Ultra is simply the faster chip.

Camera

15T 79Poco X7 5G 67

The 15T has the stronger camera system (3 real rear lenses vs 2).

Battery

15T 90Poco X7 5G 90

Battery capacities are close enough not to decide this.

Software longevity

15T 61Poco X7 5G 37

The 15T is supported until Sep 2030 — 20 months longer than the Poco X7 5G.

Value

15T 70Poco X7 5G 75

Overall value goes to the Poco X7 5G at $7.47 per month of safe use.

Full spec table

Spec	15T	Poco X7 5G
Price (street)	$500	$230
Display	6.83-inch AMOLED, 2772x1280, 144Hz	6.67-inch AMOLED, 1.5K (446 ppi), 120Hz, 3000 nits peak, Gorilla Glass Victus 2
Chipset	MediaTek Dimensity 8400-Ultra	MediaTek Dimensity 7300 Ultra (4nm)
RAM	12GB	8GB/12GB
Storage	256GB/512GB	128GB/256GB/512GB
Battery	5,500 mAh	5,500 mAh
Charging	67W wired	45W wired
Rear cameras	50MP main, 50MP telephoto 2x, 12MP ultra-wide	50MP main, 8MP ultra-wide, 2MP macro
Dimensions	163.2 × 78.0 × 7.5 mm	162.3 × 74.4 × 8.4 mm
Weight	194 g	190 g
Water resistance	IP68	IP68 (also IP69)
Supported until	Sep 2030	Jan 2029

15T full verdict →Poco X7 5G 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.