PhoneLifespan

Galaxy S23+ vs Redmi K70 Ultra

vs

It depends

Too close to call outright

These two are within 4 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+ 69 · 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.

Samsung Galaxy S23+ $206
Buy with care$10.29/mo
2023◆ Buy-by Feb 20262028
Xiaomi Redmi K70 Ultra $380
Buy with care$15.17/mo
2024◆ Buy-by Jul 20262028

Category by category

Display
Galaxy S23+ 70Redmi K70 Ultra 80

The Redmi K70 Ultra's screen is the better one — 6.67-inch amoled, 1.5k, 144hz, 4000 nits peak, dolby vision.

Performance
Galaxy S23+ 85Redmi K70 Ultra 95

The Redmi K70 Ultra's MediaTek Dimensity 9300+ (4nm) is simply the faster chip.

Camera
Galaxy S23+ 79Redmi K70 Ultra 67

The Galaxy S23+ has the stronger camera system (3 real rear lenses vs 2).

Battery
Galaxy S23+ 74Redmi K70 Ultra 90

5,500mAh vs 4,700mAh — the Redmi K70 Ultra lasts longer between charges.

Software longevity
Galaxy S23+ 24Redmi K70 Ultra 30

The Redmi K70 Ultra is supported until Jul 2028 — 5 months longer than the Galaxy S23+.

Value
Galaxy S23+ 69Redmi K70 Ultra 73

Overall value goes to the Redmi K70 Ultra at $15.17 per month of safe use.

Full spec table
SpecGalaxy S23+Redmi K70 Ultra
Price (street)$206$380
Display6.6-inch Dynamic AMOLED 2X, FHD+, 120Hz6.67-inch AMOLED, 1.5K, 144Hz, 4000 nits peak, Dolby Vision
ChipsetSnapdragon 8 Gen 2 for GalaxyMediaTek Dimensity 9300+ (4nm)
RAM8GB12GB/16GB/24GB
Storage256GB/512GB256GB/512GB/1TB
Battery4,700 mAh5,500 mAh
Charging45W wired, 15W wireless, 4.5W reverse wireless120W wired
Rear cameras50MP main, 12MP ultra-wide, 10MP telephoto 3x50MP main, 8MP ultra-wide, 2MP macro
Dimensions157.8 × 76.2 × 7.6 mm160.4 × 75.1 × 8.4 mm
Weight196 g211 g
Water resistanceIP68IP68
Supported untilFeb 2028Jul 2028

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.