Galaxy S23 Ultra vs Redmi K70 Ultra
It depends
Too close to call outright
These two are within 3 points overall — it genuinely depends on price on the day. The Redmi K70 Ultra edges both longevity and performance, so prefer it when prices are close.
Value Score: Galaxy S23 Ultra 76 · 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 Galaxy S23 Ultra's screen is the better one — 6.8-inch dynamic amoled 2x, qhd+, ltpo 1–120hz, 1750 nits peak.
The Redmi K70 Ultra's MediaTek Dimensity 9300+ (4nm) is simply the faster chip.
The Galaxy S23 Ultra has the stronger camera system (4 real rear lenses vs 2).
5,500mAh vs 5,000mAh — the Redmi K70 Ultra lasts longer between charges.
The Redmi K70 Ultra is supported until Jul 2028 — 5 months longer than the Galaxy S23 Ultra.
Pound for pound, these two are equally good deals.
Full spec table
| Spec | Galaxy S23 Ultra | Redmi K70 Ultra |
|---|---|---|
| Price (street) | $339 | $380 |
| Display | 6.8-inch Dynamic AMOLED 2X, QHD+, LTPO 1–120Hz, 1750 nits peak | 6.67-inch AMOLED, 1.5K, 144Hz, 4000 nits peak, Dolby Vision |
| Chipset | Snapdragon 8 Gen 2 for Galaxy | MediaTek Dimensity 9300+ (4nm) |
| RAM | 8GB/12GB | 12GB/16GB/24GB |
| Storage | 256GB/512GB/1TB | 256GB/512GB/1TB |
| Battery | 5,000 mAh | 5,500 mAh |
| Charging | 45W wired, 15W wireless, 4.5W reverse wireless | 120W wired |
| Rear cameras | 200MP main, 12MP ultra-wide, 10MP telephoto 3x, 10MP periscope 10x | 50MP main, 8MP ultra-wide, 2MP macro |
| Dimensions | 163.4 × 78.1 × 8.9 mm | 160.4 × 75.1 × 8.4 mm |
| Weight | 234 g | 211 g |
| Water resistance | IP68 | IP68 |
| Supported until | Feb 2028 | Jul 2028 |
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.