PhoneLifespan

iQOO 12 vs 15

vs

Winner

Xiaomi 15

Lifespan decides this one: the 15 is supported until Mar 2030 at $16.81 per month of safe use, while the iQOO 12 runs out in Nov 2028 ($19.42/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iQOO 12 66 · 15 67 — methodology

The lifespan decider

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

Vivo iQOO 12 $560
Buy with care$19.42/mo
2023◆ Buy-by Nov 20262028
Xiaomi 15 $750
Safe to buy$16.81/mo
2025◆ Buy-by Mar 20282030

Category by category

Display
iQOO 12 9015 90

Both displays are effectively the same class.

Performance
iQOO 12 9215 98

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

Camera
iQOO 12 7915 79

Camera systems are comparable on paper — pick by sample photos.

Battery
iQOO 12 8015 85

5,240mAh vs 5,000mAh — the 15 lasts longer between charges.

Software longevity
iQOO 12 3415 53

The 15 is supported until Mar 2030 — 16 months longer than the iQOO 12.

Value
iQOO 12 6615 67

Pound for pound, these two are equally good deals.

Full spec table
SpeciQOO 1215
Price (street)$560$750
Display6.78-inch LTPO AMOLED, 2800x1260, 144Hz, up to 3000 nits peak6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+
ChipsetQualcomm Snapdragon 8 Gen 3Snapdragon 8 Elite
RAM12GB/16GB12GB
Storage256GB/512GB256GB/512GB
Battery5,000 mAh5,240 mAh
Charging120W wired90W wired, 50W wireless
Rear cameras50MP main, 50MP ultra-wide, 64MP telephoto 3x periscope50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)
Dimensions163.2 × 75.9 × 8.1 mm152.3 × 71.2 × 8.08 mm
Weight199 g191 g
Water resistanceIP64IP68
Supported untilNov 2028Mar 2030
iQOO 12 full verdict →15 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.