PhoneLifespan

Galaxy S23 Ultra vs Redmi 13 5G

vs

Winner

Xiaomi Redmi 13 5G

Lifespan decides this one: the Redmi 13 5G is supported until Jul 2028 at $5.64 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 13 5G 68 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 13 5G $140
Buy with care$5.64/mo
2024◆ Buy-by Jul 20262028

Category by category

Display
Galaxy S23 Ultra 90Redmi 13 5G 70

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 13 5G 42

The Galaxy S23 Ultra's Snapdragon 8 Gen 2 for Galaxy is simply the faster chip.

Camera
Galaxy S23 Ultra 96Redmi 13 5G 55

The Galaxy S23 Ultra has the stronger camera system (4 real rear lenses vs 1).

Battery
Galaxy S23 Ultra 80Redmi 13 5G 81

Battery capacities are close enough not to decide this.

Software longevity
Galaxy S23 Ultra 24Redmi 13 5G 30

The Redmi 13 5G is supported until Jul 2028 — 5 months longer than the Galaxy S23 Ultra.

Value
Galaxy S23 Ultra 76Redmi 13 5G 68

Overall value goes to the Galaxy S23 Ultra at $16.94 per month of safe use.

Full spec table
SpecGalaxy S23 UltraRedmi 13 5G
Price (street)$339$140
Display6.8-inch Dynamic AMOLED 2X, QHD+, LTPO 1–120Hz, 1750 nits peak6.79-inch IPS LCD, FHD+, 120Hz, 550 nits peak
ChipsetSnapdragon 8 Gen 2 for GalaxyQualcomm Snapdragon 4 Gen 2 AE
RAM8GB/12GB6GB/8GB
Storage256GB/512GB/1TB128GB/256GB
Battery5,000 mAh5,030 mAh
Charging45W wired, 15W wireless, 4.5W reverse wireless33W wired
Rear cameras200MP main, 12MP ultra-wide, 10MP telephoto 3x, 10MP periscope 10x108MP main, 2MP depth
Dimensions163.4 × 78.1 × 8.9 mm168.6 × 76.3 × 8.3 mm
Weight234 g205 g
Water resistanceIP68IP54
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.