PhoneLifespan

Galaxy M54 5G vs Galaxy S25 Ultra

vs

Winner

Samsung Galaxy S25 Ultra

Lifespan decides this one: the Galaxy S25 Ultra is supported until Feb 2032 at $13.30 per month of safe use, while the Galaxy M54 5G runs out in Mar 2028 ($10.34/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M54 5G 72 · Galaxy S25 Ultra 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 M54 5G $220
Buy with care$10.34/mo
2023◆ Buy-by Mar 20262028
Samsung Galaxy S25 Ultra $902
Safe to buy$13.30/mo
2025◆ Buy-by Feb 20302032

Category by category

Display
Galaxy M54 5G 70Galaxy S25 Ultra 100

The Galaxy S25 Ultra's screen is the better one — 6.9-inch dynamic ltpo amoled 2x, qhd+, 1–120hz, up to 2600 nits.

Performance
Galaxy M54 5G 58Galaxy S25 Ultra 98

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

Camera
Galaxy M54 5G 67Galaxy S25 Ultra 96

The Galaxy S25 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery
Galaxy M54 5G 100Galaxy S25 Ultra 80

6,000mAh vs 5,000mAh — the Galaxy M54 5G lasts longer between charges.

Software longevity
Galaxy M54 5G 25Galaxy S25 Ultra 81

The Galaxy S25 Ultra is supported until Feb 2032 — 47 months longer than the Galaxy M54 5G.

Value
Galaxy M54 5G 72Galaxy S25 Ultra 75

Pound for pound, these two are equally good deals.

Full spec table
SpecGalaxy M54 5GGalaxy S25 Ultra
Price (street)$220$902
Display6.7-inch Super AMOLED Plus, 1080x2400 (FHD+), 120Hz6.9-inch Dynamic LTPO AMOLED 2X, QHD+, 1–120Hz, up to 2600 nits
ChipsetSamsung Exynos 1380Snapdragon 8 Elite for Galaxy
RAM8GB12GB
Storage128GB/256GB256GB/512GB/1TB
Battery6,000 mAh5,000 mAh
Charging25W wired45W wired (65% in 30 min), 15W wireless (Qi2 Ready), 4.5W reverse wireless
Rear cameras108MP main, 8MP ultra-wide, 2MP macro200MP main, 50MP ultra-wide, 10MP telephoto 3x, 50MP periscope 5x
Dimensions164.9 × 77.3 × 8.4 mm162.8 × 77.6 × 8.2 mm
Weight199 g218 g
Water resistanceNoneIP68
Supported untilMar 2028Feb 2032

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