Galaxy S23 Ultra vs Galaxy S25

Phone 1

Phone 2

Winner

Samsung Galaxy S25

Lifespan decides this one: the Galaxy S25 is supported until Feb 2032 at $8.86 per month of safe use, while the Galaxy S23 Ultra runs out in Feb 2028 ($16.98/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy S23 Ultra 76 · Galaxy S25 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$16.98/mo

2023◆ Buy-by Feb 20262028

Samsung Galaxy S25 $599

Safe to buy$8.86/mo

2025◆ Buy-by Feb 20302032

Category by category

Display

Galaxy S23 Ultra 90Galaxy S25 90

Both displays are effectively the same class.

Performance

Galaxy S23 Ultra 85Galaxy S25 98

The Galaxy S25's Snapdragon 8 Elite for Galaxy is simply the faster chip.

Camera

Galaxy S23 Ultra 96Galaxy S25 79

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

Battery

Galaxy S23 Ultra 80Galaxy S25 60

5,000mAh vs 4,000mAh — the Galaxy S23 Ultra lasts longer between charges.

Software longevity

Galaxy S23 Ultra 24Galaxy S25 81

The Galaxy S25 is supported until Feb 2032 — 48 months longer than the Galaxy S23 Ultra.

Value

Galaxy S23 Ultra 76Galaxy S25 75

Pound for pound, these two are equally good deals.

Full spec table

Spec	Galaxy S23 Ultra	Galaxy S25
Price (street)	$339	$599
Display	6.8-inch Dynamic AMOLED 2X, QHD+, LTPO 1–120Hz, 1750 nits peak	6.2-inch Dynamic LTPO AMOLED 2X, FHD+, 1–120Hz, up to 2600 nits
Chipset	Snapdragon 8 Gen 2 for Galaxy	Snapdragon 8 Elite for Galaxy
RAM	8GB/12GB	12GB
Storage	256GB/512GB/1TB	128GB/256GB/512GB
Battery	5,000 mAh	4,000 mAh
Charging	45W wired, 15W wireless, 4.5W reverse wireless	25W wired, 15W wireless (Qi2 Ready), 4.5W reverse wireless
Rear cameras	200MP main, 12MP ultra-wide, 10MP telephoto 3x, 10MP periscope 10x	50MP main, 12MP ultra-wide, 10MP telephoto 3x
Dimensions	163.4 × 78.1 × 8.9 mm	146.9 × 70.5 × 7.2 mm
Weight	234 g	162 g
Water resistance	IP68	IP68
Supported until	Feb 2028	Feb 2032

Galaxy S23 Ultra full verdict →Galaxy S25 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.