400 vs Poco M6 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 Poco M6 Pro runs out in Jan 2028 ($9.04/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 76 · Poco M6 Pro 68 — 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

Xiaomi Poco M6 Pro $170

Buy with care$9.04/mo

2024◆ Buy-by Jan 20262028

Category by category

Display

400 80Poco M6 Pro 70

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

Performance

400 64Poco M6 Pro 44

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

Camera

400 72Poco M6 Pro 67

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

Battery

400 86Poco M6 Pro 80

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

Software longevity

400 70Poco M6 Pro 22

The 400 is supported until May 2031 — 40 months longer than the Poco M6 Pro.

Value

400 76Poco M6 Pro 68

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

Full spec table

Spec	400	Poco M6 Pro
Price (street)	$350	$170
Display	6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak	6.67-inch AMOLED, 2400x1080 (FHD+), 120Hz
Chipset	Qualcomm Snapdragon 7 Gen 3 (4nm)	MediaTek Helio G99 Ultra
RAM	8GB/12GB	8GB/12GB
Storage	256GB/512GB	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	64MP main, 8MP ultra-wide
Dimensions	156.5 × 74.6 × 7.3 mm	161.1 × 75 × 8 mm
Weight	184 g	179 g
Water resistance	IP65/IP66 (market dependent)	IP54
Supported until	May 2031	Jan 2028

400 full verdict →Poco M6 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.