PhoneLifespan

400 Pro vs 12

vs

Winner

Honor 400 Pro

Lifespan decides this one: the 400 Pro is supported until May 2031 at $11.81 per month of safe use, while the 12 runs out in Jan 2029 ($15.94/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 Pro 70 · 12 72 — methodology

The lifespan decider

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

Honor 400 Pro $700
Safe to buy$11.81/mo
2025◆ Buy-by May 20292031
OnePlus 12 $500
Buy with care$15.94/mo
2024◆ Buy-by Jan 20272029

Category by category

Display
400 Pro 7012 100

The 12's screen is the better one — 6.82-inch ltpo amoled proxdr, qhd+ (3168×1440), 1–120hz, up to 4500 nits peak.

Performance
400 Pro 9212 92

Performance is a wash — same chip tier.

Camera
400 Pro 8412 79

The 400 Pro has the stronger camera system — same lens count, higher-grade sensors.

Battery
400 Pro 8612 88

Battery capacities are close enough not to decide this.

Software longevity
400 Pro 7112 37

The 400 Pro is supported until May 2031 — 28 months longer than the 12.

Value
400 Pro 7012 72

Pound for pound, these two are equally good deals.

Full spec table
Spec400 Pro12
Price (street)$700$500
Display6.7-inch AMOLED, 2800x1280, 120Hz6.82-inch LTPO AMOLED ProXDR, QHD+ (3168×1440), 1–120Hz, up to 4500 nits peak
ChipsetQualcomm Snapdragon 8 Gen 3Snapdragon 8 Gen 3
RAM12GB/16GB12GB/16GB
Storage256GB/512GB256GB/512GB
Battery5,300 mAh5,400 mAh
Charging100W wired, 50W wireless80W SUPERVOOC wired (50W in North America), 50W wireless
Rear cameras200MP main, 50MP telephoto 3x, 12MP ultra-wide50MP main, 48MP ultra-wide, 64MP periscope 3x
Dimensions160.8 × 76.1 × 8.1 mm164.3 × 75.8 × 9.2 mm
Weight205 g220 g
Water resistanceIP68/IP69IP65
Supported untilMay 2031Jan 2029
400 Pro full verdict →12 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.