PhoneLifespan

15 Ultra vs POCO X6 Pro

vs

Winner

Xiaomi 15 Ultra

Lifespan decides this one: the 15 Ultra is supported until Mar 2030 at $30.40 per month of safe use, while the POCO X6 Pro runs out in Jan 2028 ($13.33/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · POCO X6 Pro 68 — 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$30.40/mo
2025◆ Buy-by Mar 20282030
Xiaomi POCO X6 Pro $250
Buy with care$13.33/mo
2024◆ Buy-by Jan 20262028

Category by category

Display
15 Ultra 100POCO X6 Pro 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 Pro 73

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

Camera
15 Ultra 96POCO X6 Pro 67

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

Battery
15 Ultra 88POCO X6 Pro 80

5,410mAh vs 5,000mAh — the 15 Ultra lasts longer between charges.

Software longevity
15 Ultra 53POCO X6 Pro 22

The 15 Ultra is supported until Mar 2030 — 26 months longer than the POCO X6 Pro.

Value
15 Ultra 65POCO X6 Pro 68

Pound for pound, these two are equally good deals.

Full spec table
Spec15 UltraPOCO X6 Pro
Price (street)$1350$250
Display6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak6.67-inch CrystalRes 1.5K Flow AMOLED, 2712×1220 (446 ppi), 120Hz, 1800 nits peak, 480Hz touch sampling
ChipsetQualcomm Snapdragon 8 Elite (3nm)MediaTek Dimensity 8300-Ultra
RAM16GB8GB/12GB
Storage512GB/1TB256GB/512GB
Battery5,410 mAh5,000 mAh
Charging90W wired, 80W wireless67W wired
Rear cameras50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto64MP main (OIS), 8MP ultra-wide, 2MP macro
Dimensions161.3 × 75.3 × 9.35 mm160.45 × 74.34 × 8.25 mm
Weight226 g186 g
Water resistanceIP68IP54
Supported untilMar 2030Jan 2028
15 Ultra full verdict →POCO X6 Pro 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.