400 Pro vs 15 Pro
It depends
Too close to call outright
These two are within 4 points overall, so it depends on you: keep phones for years → 400 Pro (supported until May 2031); want maximum speed → 15 Pro (Qualcomm Snapdragon 8 Elite).
Value Score: 400 Pro 70 · 15 Pro 74 — 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
The 15 Pro's screen is the better one — 6.73-inch ltpo amoled, 3200 x 1440, 120hz.
The 15 Pro's Qualcomm Snapdragon 8 Elite is simply the faster chip.
The 400 Pro has the stronger camera system — same lens count, higher-grade sensors.
6,100mAh vs 5,300mAh — the 15 Pro lasts longer between charges.
The 400 Pro is supported until May 2031 — 7 months longer than the 15 Pro.
Overall value goes to the 15 Pro at $12.38 per month of safe use.
Full spec table
| Spec | 400 Pro | 15 Pro |
|---|---|---|
| Price (street) | $700 | $650 |
| Display | 6.7-inch AMOLED, 2800x1280, 120Hz | 6.73-inch LTPO AMOLED, 3200 x 1440, 120Hz |
| Chipset | Qualcomm Snapdragon 8 Gen 3 | Qualcomm Snapdragon 8 Elite |
| RAM | 12GB/16GB | 12GB/16GB |
| Storage | 256GB/512GB | 256GB/512GB/1TB |
| Battery | 5,300 mAh | 6,100 mAh |
| Charging | 100W wired, 50W wireless | 90W wired, 50W wireless |
| Rear cameras | 200MP main, 50MP telephoto 3x, 12MP ultra-wide | 50MP main, 50MP ultra-wide, 50MP telephoto 5x |
| Dimensions | 160.8 × 76.1 × 8.1 mm | 161.3 × 74.6 × 8.4 mm |
| Weight | 205 g | 213 g |
| Water resistance | IP68/IP69 | IP68 |
| Supported until | May 2031 | Oct 2030 |
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.