PhoneLifespan

15 Ultra vs Poco M7 Plus 5G

vs

Winner

Xiaomi Poco M7 Plus 5G

Lifespan decides this one: the Poco M7 Plus 5G is supported until Aug 2029 at $4.34 per month of safe use, while the 15 Ultra runs out in Mar 2030 ($30.36/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 Ultra 65 · Poco M7 Plus 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 15 Ultra $1350
Safe to buy$30.36/mo
2025◆ Buy-by Mar 20282030
Xiaomi Poco M7 Plus 5G $165
Safe to buy$4.34/mo
2025◆ Buy-by Aug 20272029

Category by category

Display
15 Ultra 100Poco M7 Plus 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 M7 Plus 5G 46

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

Camera
15 Ultra 96Poco M7 Plus 5G 55

The 15 Ultra has the stronger camera system (4 real rear lenses vs 1).

Battery
15 Ultra 88Poco M7 Plus 5G 100

7,000mAh vs 5,410mAh — the Poco M7 Plus 5G lasts longer between charges.

Software longevity
15 Ultra 53Poco M7 Plus 5G 45

The 15 Ultra is supported until Mar 2030 — 6 months longer than the Poco M7 Plus 5G.

Value
15 Ultra 65Poco M7 Plus 5G 75

Overall value goes to the Poco M7 Plus 5G at $4.34 per month of safe use.

Full spec table
Spec15 UltraPoco M7 Plus 5G
Price (street)$1350$165
Display6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak
ChipsetQualcomm Snapdragon 8 Elite (3nm)Qualcomm Snapdragon 6s Gen 3 (6nm)
RAM16GB4GB/6GB/8GB
Storage512GB/1TB128GB
Battery5,410 mAh7,000 mAh
Charging90W wired, 80W wireless33W wired, 18W reverse wired
Rear cameras50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto50MP main
Dimensions161.3 × 75.3 × 9.35 mm168.5 × 80.5 × 8.4 mm
Weight226 g217 g
Water resistanceIP68IP64
Supported untilMar 2030Aug 2029
15 Ultra full verdict →Poco M7 Plus 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.