Galaxy M15 5G vs Galaxy S25+

Phone 1

Phone 2

Winner

Samsung Galaxy S25+

Lifespan decides this one: the Galaxy S25+ is supported until Feb 2032 at $12.55 per month of safe use, while the Galaxy M15 5G runs out in Apr 2029 ($4.47/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M15 5G 71 · Galaxy S25+ 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 M15 5G $150

Buy with care$4.47/mo

2024◆ Buy-by Apr 20272029

Samsung Galaxy S25+ $849

Safe to buy$12.55/mo

2025◆ Buy-by Feb 20302032

Category by category

Display

Galaxy M15 5G 50Galaxy S25+ 100

The Galaxy S25+'s screen is the better one — 6.7-inch dynamic amoled 2x, qhd+ (3120×1440), 1–120hz, up to 2600 nits.

Performance

Galaxy M15 5G 38Galaxy S25+ 98

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

Camera

Galaxy M15 5G 55Galaxy S25+ 79

The Galaxy S25+ has the stronger camera system (3 real rear lenses vs 1).

Battery

Galaxy M15 5G 100Galaxy S25+ 78

6,000mAh vs 4,900mAh — the Galaxy M15 5G lasts longer between charges.

Software longevity

Galaxy M15 5G 40Galaxy S25+ 81

The Galaxy S25+ is supported until Feb 2032 — 34 months longer than the Galaxy M15 5G.

Value

Galaxy M15 5G 71Galaxy S25+ 73

Pound for pound, these two are equally good deals.

Full spec table

Spec	Galaxy M15 5G	Galaxy S25+
Price (street)	$150	$849
Display	6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz	6.7-inch Dynamic AMOLED 2X, QHD+ (3120×1440), 1–120Hz, up to 2600 nits
Chipset	MediaTek Dimensity 6100+	Snapdragon 8 Elite for Galaxy
RAM	4GB/6GB/8GB	12GB
Storage	128GB/256GB	256GB/512GB
Battery	6,000 mAh	4,900 mAh
Charging	25W wired	45W wired, 15W wireless
Rear cameras	50MP main, 5MP ultra-wide, 2MP macro	50MP main, 12MP ultra-wide, 10MP telephoto 3x
Dimensions	160.1 × 76.8 × 9.3 mm	158.4 × 75.8 × 7.3 mm
Weight	217 g	190 g
Water resistance	None	IP68
Supported until	Apr 2029	Feb 2032

Galaxy M15 5G 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.