12 vs Redmi K70 Ultra
It depends
Too close to call outright
These two are within 1 point overall, so it depends on you: keep phones for years → 12 (supported until Jan 2029); want maximum speed → Redmi K70 Ultra (MediaTek Dimensity 9300+ (4nm)).
Value Score: 12 72 · Redmi K70 Ultra 73 — 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 12's screen is the better one — 6.82-inch ltpo amoled proxdr, qhd+ (3168×1440), 1–120hz, up to 4500 nits peak.
Performance is a wash — same chip tier.
The 12 has the stronger camera system (3 real rear lenses vs 2).
Battery capacities are close enough not to decide this.
The 12 is supported until Jan 2029 — 6 months longer than the Redmi K70 Ultra.
Pound for pound, these two are equally good deals.
Full spec table
| Spec | 12 | Redmi K70 Ultra |
|---|---|---|
| Price (street) | $500 | $380 |
| Display | 6.82-inch LTPO AMOLED ProXDR, QHD+ (3168×1440), 1–120Hz, up to 4500 nits peak | 6.67-inch AMOLED, 1.5K, 144Hz, 4000 nits peak, Dolby Vision |
| Chipset | Snapdragon 8 Gen 3 | MediaTek Dimensity 9300+ (4nm) |
| RAM | 12GB/16GB | 12GB/16GB/24GB |
| Storage | 256GB/512GB | 256GB/512GB/1TB |
| Battery | 5,400 mAh | 5,500 mAh |
| Charging | 80W SUPERVOOC wired (50W in North America), 50W wireless | 120W wired |
| Rear cameras | 50MP main, 48MP ultra-wide, 64MP periscope 3x | 50MP main, 8MP ultra-wide, 2MP macro |
| Dimensions | 164.3 × 75.8 × 9.2 mm | 160.4 × 75.1 × 8.4 mm |
| Weight | 220 g | 211 g |
| Water resistance | IP65 | IP68 |
| Supported until | Jan 2029 | Jul 2028 |
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.