400 vs Galaxy A55 5G

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 Galaxy A55 5G runs out in Mar 2029 ($9.12/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 76 · Galaxy A55 5G 67 — 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

Samsung Galaxy A55 5G $300

Buy with care$9.12/mo

2024◆ Buy-by Mar 20272029

Category by category

Display

400 80Galaxy A55 5G 70

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

Performance

400 64Galaxy A55 5G 60

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

Camera

400 72Galaxy A55 5G 67

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

Battery

400 86Galaxy A55 5G 80

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

Software longevity

400 70Galaxy A55 5G 39

The 400 is supported until May 2031 — 26 months longer than the Galaxy A55 5G.

Value

400 76Galaxy A55 5G 67

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

Full spec table

Spec	400	Galaxy A55 5G
Price (street)	$350	$300
Display	6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak	6.6-inch Super AMOLED, 1080x2340 (FHD+), 120Hz
Chipset	Qualcomm Snapdragon 7 Gen 3 (4nm)	Exynos 1480
RAM	8GB/12GB	8GB/12GB
Storage	256GB/512GB	128GB/256GB
Battery	5,300 mAh	5,000 mAh
Charging	66W wired (5300mAh EU model), 5W reverse wired	25W wired
Rear cameras	200MP main, 12MP ultra-wide	50MP main, 12MP ultra-wide, 5MP macro
Dimensions	156.5 × 74.6 × 7.3 mm	161.1 × 77.4 × 8.2 mm
Weight	184 g	213 g
Water resistance	IP65/IP66 (market dependent)	IP67
Supported until	May 2031	Mar 2029

400 full verdict →Galaxy A55 5G 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.