400 vs Galaxy M16 5G

Phone 1

Phone 2

Winner

Samsung Galaxy M16 5G

Lifespan decides this one: the Galaxy M16 5G is supported until Feb 2031 at $2.66 per month of safe use, while the 400 runs out in May 2031 ($5.92/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 76 · Galaxy M16 5G 75 — 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 M16 5G $150

Safe to buy$2.66/mo

2025◆ Buy-by Feb 20292031

Category by category

Display

400 80Galaxy M16 5G 50

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

Performance

400 64Galaxy M16 5G 42

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

Camera

400 72Galaxy M16 5G 55

The 400 has the stronger camera system (2 real rear lenses vs 1).

Battery

400 86Galaxy M16 5G 80

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

Software longevity

400 70Galaxy M16 5G 67

The 400 is supported until May 2031 — 3 months longer than the Galaxy M16 5G.

Value

400 76Galaxy M16 5G 75

Pound for pound, these two are equally good deals.

Full spec table

Spec	400	Galaxy M16 5G
Price (street)	$350	$150
Display	6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak	6.7-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz
Chipset	Qualcomm Snapdragon 7 Gen 3 (4nm)	MediaTek Dimensity 6300
RAM	8GB/12GB	4GB/6GB/8GB
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, 5MP ultra-wide, 2MP macro
Dimensions	156.5 × 74.6 × 7.3 mm	164.6 × 77.9 × 7.9 mm
Weight	184 g	191 g
Water resistance	IP65/IP66 (market dependent)	None
Supported until	May 2031	Feb 2031

400 full verdict →Galaxy M16 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.