15 Ultra vs Poco X6 5G

Phone 1

Phone 2

Winner

Xiaomi 15 Ultra

Lifespan decides this one: the 15 Ultra is supported until Mar 2030 at $30.26 per month of safe use, while the Poco X6 5G runs out in Jan 2028 ($12.67/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · Poco X6 5G 67 — methodology

The lifespan decider

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

Xiaomi 15 Ultra $1350

Safe to buy$30.26/mo

2025◆ Buy-by Mar 20282030

Xiaomi Poco X6 5G $240

Buy with care$12.67/mo

2024◆ Buy-by Jan 20262028

Category by category

Display

15 Ultra 100Poco X6 5G 70

The 15 Ultra's screen is the better one — 6.73-inch 2k (1440×3200) ltpo amoled, 1–120hz, up to 3200 nits peak.

Performance

15 Ultra 98Poco X6 5G 56

The 15 Ultra's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera

15 Ultra 96Poco X6 5G 67

The 15 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery

15 Ultra 88Poco X6 5G 82

5,410mAh vs 5,100mAh — the 15 Ultra lasts longer between charges.

Software longevity

15 Ultra 53Poco X6 5G 23

The 15 Ultra is supported until Mar 2030 — 26 months longer than the Poco X6 5G.

Value

15 Ultra 65Poco X6 5G 67

Pound for pound, these two are equally good deals.

Full spec table

Spec	15 Ultra	Poco X6 5G
Price (street)	$1350	$240
Display	6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak	6.67-inch Flow AMOLED, 2712x1220 (1.5K), 120Hz
Chipset	Qualcomm Snapdragon 8 Elite (3nm)	Qualcomm Snapdragon 7s Gen 2
RAM	16GB	8GB/12GB
Storage	512GB/1TB	256GB/512GB
Battery	5,410 mAh	5,100 mAh
Charging	90W wired, 80W wireless	67W wired
Rear cameras	50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto	64MP main, 8MP ultra-wide
Dimensions	161.3 × 75.3 × 9.35 mm	161.2 × 74.3 × 8 mm
Weight	226 g	181 g
Water resistance	IP68	IP54
Supported until	Mar 2030	Jan 2028

15 Ultra full verdict →Poco X6 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.