400 vs C71

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 C71 runs out in Jun 2028 ($6.38/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 400 76 · C71 71 — 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 C71 $150

Buy with care$6.38/mo

2025◆ Buy-by Jun 20262028

Category by category

Display

400 80C71 70

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

Performance

400 64C71 55

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

Camera

400 72C71 55

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

Battery

400 86C71 100

6,300mAh vs 5,300mAh — the C71 lasts longer between charges.

Software longevity

400 70C71 28

The 400 is supported until May 2031 — 36 months longer than the C71.

Value

400 76C71 71

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

Full spec table

Spec	400	C71
Price (street)	$350	$150
Display	6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak	6.67-inch IPS LCD, HD+, 120Hz, 725 nits
Chipset	Qualcomm Snapdragon 7 Gen 3 (4nm)	Unisoc T7250 (12nm)
RAM	8GB/12GB	4GB/6GB/8GB
Storage	256GB/512GB	64GB/128GB/256GB
Battery	5,300 mAh	6,300 mAh
Charging	66W wired (5300mAh EU model), 5W reverse wired	45W wired (50% in 36 min), 6W reverse wired
Rear cameras	200MP main, 12MP ultra-wide	50MP main
Dimensions	156.5 × 74.6 × 7.3 mm	165.8 × 75.9 × 7.8 mm
Weight	184 g	196 g
Water resistance	IP65/IP66 (market dependent)	Splash/dust resistant, MIL-STD-810H, 1.5m drop resistance
Supported until	May 2031	Jun 2028

400 full verdict →C71 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.