PhoneLifespan

400 vs Ace 5 Pro

vs

It depends

Too close to call outright

These two are within 1 point overall, so it depends on you: keep phones for years → 400 (supported until May 2031); want maximum speed → Ace 5 Pro (Qualcomm Snapdragon 8 Elite (3nm)).

Value Score: 400 76 · 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 $350
Safe to buy$5.92/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 80Ace 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 64Ace 5 Pro 98

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

Camera
400 72Ace 5 Pro 67

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

Battery
400 86Ace 5 Pro 100

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

Software longevity
400 70Ace 5 Pro 65

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

Value
400 76Ace 5 Pro 77

Pound for pound, these two are equally good deals.

Full spec table
Spec400Ace 5 Pro
Price (street)$350$530
Display6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak6.78-inch LTPO AMOLED, 1.5K, 120Hz, up to 4500 nits peak, Crystal Shield Glass
ChipsetQualcomm Snapdragon 7 Gen 3 (4nm)Qualcomm Snapdragon 8 Elite (3nm)
RAM8GB/12GB12GB/16GB/24GB
Storage256GB/512GB256GB/512GB/1TB
Battery5,300 mAh6,100 mAh
Charging66W wired (5300mAh EU model), 5W reverse wired100W wired SUPERVOOC
Rear cameras200MP main, 12MP ultra-wide50MP main, 8MP ultra-wide, 2MP macro
Dimensions156.5 × 74.6 × 7.3 mm161.7 × 75.8 × 8.1 mm
Weight184 g203 g
Water resistanceIP65/IP66 (market dependent)IP65
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.