PhoneLifespan

Galaxy S23 Ultra vs Redmi K80 Pro

vs

Winner

Xiaomi Redmi K80 Pro

Lifespan decides this one: the Redmi K80 Pro is supported until Nov 2029 at $12.09 per month of safe use, while the Galaxy S23 Ultra runs out in Feb 2028 ($16.94/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy S23 Ultra 76 · Redmi K80 Pro 75 — 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 Ultra $339
Buy with care$16.94/mo
2023◆ Buy-by Feb 20262028
Xiaomi Redmi K80 Pro $500
Safe to buy$12.09/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
Galaxy S23 Ultra 90Redmi K80 Pro 80

The Galaxy S23 Ultra's screen is the better one — 6.8-inch dynamic amoled 2x, qhd+, ltpo 1–120hz, 1750 nits peak.

Performance
Galaxy S23 Ultra 85Redmi K80 Pro 98

The Redmi K80 Pro's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera
Galaxy S23 Ultra 96Redmi K80 Pro 79

The Galaxy S23 Ultra has the stronger camera system (4 real rear lenses vs 3).

Battery
Galaxy S23 Ultra 80Redmi K80 Pro 100

6,000mAh vs 5,000mAh — the Redmi K80 Pro lasts longer between charges.

Software longevity
Galaxy S23 Ultra 24Redmi K80 Pro 49

The Redmi K80 Pro is supported until Nov 2029 — 21 months longer than the Galaxy S23 Ultra.

Value
Galaxy S23 Ultra 76Redmi K80 Pro 75

Pound for pound, these two are equally good deals.

Full spec table
SpecGalaxy S23 UltraRedmi K80 Pro
Price (street)$339$500
Display6.8-inch Dynamic AMOLED 2X, QHD+, LTPO 1–120Hz, 1750 nits peak6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak, 12-bit
ChipsetSnapdragon 8 Gen 2 for GalaxyQualcomm Snapdragon 8 Elite (3nm)
RAM8GB/12GB12GB/16GB/24GB
Storage256GB/512GB/1TB256GB/512GB/1TB
Battery5,000 mAh6,000 mAh
Charging45W wired, 15W wireless, 4.5W reverse wireless120W wired, 50W wireless
Rear cameras200MP main, 12MP ultra-wide, 10MP telephoto 3x, 10MP periscope 10x50MP main, 50MP telephoto, 32MP ultra-wide
Dimensions163.4 × 78.1 × 8.9 mm160.3 × 75.0 × 8.0 mm
Weight234 g213 g
Water resistanceIP68IP68
Supported untilFeb 2028Nov 2029
Galaxy S23 Ultra full verdict →Redmi K80 Pro full verdict →Longevity master board →

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