PhoneLifespan

15 vs Poco F7 5G

vs

Winner

Xiaomi Poco F7 5G

Lifespan decides this one: the Poco F7 5G is supported until Jun 2031 at $6.23 per month of safe use, while the 15 runs out in Mar 2030 ($16.87/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 67 · Poco F7 5G 83 — 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 $750
Safe to buy$16.87/mo
2025◆ Buy-by Mar 20282030
Xiaomi Poco F7 5G $375
Safe to buy$6.23/mo
2025◆ Buy-by Jun 20292031

Category by category

Display
15 90Poco F7 5G 80

The 15's screen is the better one — 6.36-inch crystalres amoled, 2670×1200 (460 ppi), 1–120hz ltpo, up to 3200 nits peak, dolby vision/hdr10+.

Performance
15 98Poco F7 5G 86

The 15's Snapdragon 8 Elite is simply the faster chip.

Camera
15 79Poco F7 5G 67

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

Battery
15 85Poco F7 5G 100

6,500mAh vs 5,240mAh — the Poco F7 5G lasts longer between charges.

Software longevity
15 53Poco F7 5G 72

The Poco F7 5G is supported until Jun 2031 — 16 months longer than the 15.

Value
15 67Poco F7 5G 83

Overall value goes to the Poco F7 5G at $6.23 per month of safe use.

Full spec table
Spec15Poco F7 5G
Price (street)$750$375
Display6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+6.83-inch AMOLED, 1.5K, 120Hz, Dolby Vision, up to 3200 nits peak, Gorilla Glass 7i
ChipsetSnapdragon 8 EliteQualcomm Snapdragon 8s Gen 4 (4nm)
RAM12GB12GB
Storage256GB/512GB256GB/512GB
Battery5,240 mAh6,500 mAh
Charging90W wired, 50W wireless90W wired
Rear cameras50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)50MP main, 8MP ultra-wide
Dimensions152.3 × 71.2 × 8.08 mm163.1 × 77.9 × 8.2 mm
Weight191 g216 g
Water resistanceIP68IP66/IP68/IP69
Supported untilMar 2030Jun 2031
15 full verdict →Poco F7 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.