400 vs 12 Pro+

Phone 1

Phone 2

Winner

Honor 400

Lifespan decides this one: the 400 is supported until May 2031 at $5.92 per month of safe use, while the 12 Pro+ runs out in Jan 2028 ($15.46/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 76 · 12 Pro+ 63 — 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

Realme 12 Pro+ $300

Buy with care$15.46/mo

2024◆ Buy-by Jan 20262028

Category by category

Display

400 8012 Pro+ 70

The 400's screen is the better one — 6.55-inch amoled, 1.5k, 120hz, 5000 nits peak.

Performance

400 6412 Pro+ 56

The 400's Qualcomm Snapdragon 7 Gen 3 (4nm) is simply the faster chip.

Camera

400 7212 Pro+ 79

The 12 Pro+ has the stronger camera system (3 real rear lenses vs 2).

Battery

400 8612 Pro+ 80

5,300mAh vs 5,000mAh — the 400 lasts longer between charges.

Software longevity

400 7012 Pro+ 23

The 400 is supported until May 2031 — 40 months longer than the 12 Pro+.

Value

400 7612 Pro+ 63

Overall value goes to the 400 at $5.92 per month of safe use.

Full spec table

Spec	400	12 Pro+
Price (street)	$350	$300
Display	6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak	6.7-inch curved AMOLED, 2412x1080, 120Hz
Chipset	Qualcomm Snapdragon 7 Gen 3 (4nm)	Qualcomm Snapdragon 7s Gen 2
RAM	8GB/12GB	8GB/12GB
Storage	256GB/512GB	128GB/256GB/512GB
Battery	5,300 mAh	5,000 mAh
Charging	66W wired (5300mAh EU model), 5W reverse wired	67W wired
Rear cameras	200MP main, 12MP ultra-wide	50MP main, 64MP telephoto 3x periscope, 8MP ultra-wide
Dimensions	156.5 × 74.6 × 7.3 mm	161.5 × 74.0 × 8.8 mm
Weight	184 g	196 g
Water resistance	IP65/IP66 (market dependent)	IP65
Supported until	May 2031	Jan 2028

400 full verdict →12 Pro+ 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.