400 vs Redmi K80
It depends
Too close to call outright
These two are within 3 points overall, so it depends on you: keep phones for years → 400 (supported until May 2031); want maximum speed → Redmi K80 (Qualcomm Snapdragon 8 Gen 3 (4nm)).
Value Score: 400 76 · Redmi K80 79 — methodology
The lifespan decider
When specs are close, support length decides it — this is what each phone costs per month of safe use.
Category by category
Both displays are effectively the same class.
The Redmi K80's Qualcomm Snapdragon 8 Gen 3 (4nm) is simply the faster chip.
The 400 has the stronger camera system — same lens count, higher-grade sensors.
6,550mAh vs 5,300mAh — the Redmi K80 lasts longer between charges.
The 400 is supported until May 2031 — 18 months longer than the Redmi K80.
Pound for pound, these two are equally good deals.
Full spec table
| Spec | 400 | Redmi K80 |
|---|---|---|
| Price (street) | $350 | $355 |
| Display | 6.55-inch AMOLED, 1.5K, 120Hz, 5000 nits peak | 6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak |
| Chipset | Qualcomm Snapdragon 7 Gen 3 (4nm) | Qualcomm Snapdragon 8 Gen 3 (4nm) |
| RAM | 8GB/12GB | 12GB/16GB |
| Storage | 256GB/512GB | 256GB/512GB/1TB |
| Battery | 5,300 mAh | 6,550 mAh |
| Charging | 66W wired (5300mAh EU model), 5W reverse wired | 90W wired, 30W wireless |
| Rear cameras | 200MP main, 12MP ultra-wide | 50MP main, 8MP ultra-wide, 2MP macro |
| Dimensions | 156.5 × 74.6 × 7.3 mm | 160.3 × 75.0 × 8.0 mm |
| Weight | 184 g | 206 g |
| Water resistance | IP65/IP66 (market dependent) | IP68 |
| Supported until | May 2031 | Nov 2029 |
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.