15 vs Poco C85

Phone 1

Phone 2

Winner

Xiaomi 15

Lifespan decides this one: the 15 is supported until Mar 2030 at $16.87 per month of safe use, while the Poco C85 runs out in Sep 2028 ($4.15/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 67 · Poco C85 72 — 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 C85 $110

Buy with care$4.15/mo

2025◆ Buy-by Sep 20262028

Category by category

Display

15 90Poco C85 70

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 C85 39

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

Camera

15 79Poco C85 55

The 15 has the stronger camera system (3 real rear lenses vs 1).

Battery

15 85Poco C85 100

6,000mAh vs 5,240mAh — the Poco C85 lasts longer between charges.

Software longevity

15 53Poco C85 32

The 15 is supported until Mar 2030 — 18 months longer than the Poco C85.

Value

15 67Poco C85 72

Overall value goes to the Poco C85 at $4.15 per month of safe use.

Full spec table

Spec	15	Poco C85
Price (street)	$750	$110
Display	6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+	6.9-inch IPS LCD, HD+, 120Hz, 810 nits peak
Chipset	Snapdragon 8 Elite	MediaTek Helio G81-Ultra
RAM	12GB	6GB/8GB
Storage	256GB/512GB	128GB/256GB
Battery	5,240 mAh	6,000 mAh
Charging	90W wired, 50W wireless	33W wired
Rear cameras	50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)	50MP main
Dimensions	152.3 × 71.2 × 8.08 mm	171.6 × 79.5 × 8.0 mm
Weight	191 g	205 g
Water resistance	IP68	IP64
Supported until	Mar 2030	Sep 2028

15 full verdict →Poco C85 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.