PhoneLifespan

400 Pro vs Ace 5 Pro

vs

Winner

OnePlus Ace 5 Pro

The Ace 5 Pro wins this one, taking display and battery decisively. Against the 400 Pro it's also the sounder buy at $9.76 per month of safe use.

Value Score: 400 Pro 70 · Ace 5 Pro 77 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$11.84/mo
2025◆ Buy-by May 20292031
OnePlus Ace 5 Pro $530
Safe to buy$9.76/mo
2024◆ Buy-by Dec 20282030

Category by category

Display
400 Pro 70Ace 5 Pro 90

The Ace 5 Pro's screen is the better one — 6.78-inch ltpo amoled, 1.5k, 120hz, up to 4500 nits peak, crystal shield glass.

Performance
400 Pro 92Ace 5 Pro 98

The Ace 5 Pro's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera
400 Pro 84Ace 5 Pro 67

The 400 Pro has the stronger camera system (3 real rear lenses vs 2).

Battery
400 Pro 86Ace 5 Pro 100

6,100mAh vs 5,300mAh — the Ace 5 Pro lasts longer between charges.

Software longevity
400 Pro 70Ace 5 Pro 65

The 400 Pro is supported until May 2031 — 5 months longer than the Ace 5 Pro.

Value
400 Pro 70Ace 5 Pro 77

Overall value goes to the Ace 5 Pro at $9.76 per month of safe use.

Full spec table
Spec400 ProAce 5 Pro
Price (street)$700$530
Display6.7-inch AMOLED, 2800x1280, 120Hz6.78-inch LTPO AMOLED, 1.5K, 120Hz, up to 4500 nits peak, Crystal Shield Glass
ChipsetQualcomm Snapdragon 8 Gen 3Qualcomm Snapdragon 8 Elite (3nm)
RAM12GB/16GB12GB/16GB/24GB
Storage256GB/512GB256GB/512GB/1TB
Battery5,300 mAh6,100 mAh
Charging100W wired, 50W wireless100W wired SUPERVOOC
Rear cameras200MP main, 50MP telephoto 3x, 12MP ultra-wide50MP main, 8MP ultra-wide, 2MP macro
Dimensions160.8 × 76.1 × 8.1 mm161.7 × 75.8 × 8.1 mm
Weight205 g203 g
Water resistanceIP68/IP69IP65
Supported untilMay 2031Dec 2030

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.