400 vs T4 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 T4 5G runs out in Apr 2028 ($11.62/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 76 · T4 5G 72 — 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

Vivo T4 5G $260

Buy with care$11.62/mo

2025◆ Buy-by Apr 20262028

Category by category

Display

400 80T4 5G 80

Both displays are effectively the same class.

Performance

400 64T4 5G 64

Performance is a wash — same chip tier.

Camera

400 72T4 5G 55

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

Battery

400 86T4 5G 100

7,300mAh vs 5,300mAh — the T4 5G lasts longer between charges.

Software longevity

400 70T4 5G 27

The 400 is supported until May 2031 — 37 months longer than the T4 5G.

Value

400 76T4 5G 72

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

Full spec table

Spec	400	T4 5G
Price (street)	$350	$260
Display	6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak	6.77-inch AMOLED, FHD+, 120Hz, 5000 nits peak
Chipset	Qualcomm Snapdragon 7 Gen 3 (4nm)	Qualcomm Snapdragon 7s Gen 3
RAM	8GB/12GB	8GB/12GB
Storage	256GB/512GB	128GB/256GB
Battery	5,300 mAh	7,300 mAh
Charging	66W wired (5300mAh EU model), 5W reverse wired	90W wired
Rear cameras	200MP main, 12MP ultra-wide	50MP main, 2MP depth
Dimensions	156.5 × 74.6 × 7.3 mm	163.4 × 76.4 × 7.9 mm
Weight	184 g	199 g
Water resistance	IP65/IP66 (market dependent)	IP65
Supported until	May 2031	Apr 2028

400 full verdict →T4 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.