PhoneLifespan

Galaxy A15 5G vs Galaxy M15 5G

vs

It depends

Too close to call outright

These two are within 4 points overall, so it depends on you: keep phones for years → Galaxy M15 5G (supported until Apr 2029); want maximum speed → Galaxy A15 5G (Dimensity 6100+).

Value Score: Galaxy A15 5G 67 · Galaxy M15 5G 71 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 A15 5G $120
Buy with care$4.01/mo
2023◆ Buy-by Dec 20262028
Samsung Galaxy M15 5G $150
Buy with care$4.47/mo
2024◆ Buy-by Apr 20272029

Category by category

Display
Galaxy A15 5G 50Galaxy M15 5G 50

Both displays are effectively the same class.

Performance
Galaxy A15 5G 38Galaxy M15 5G 38

Performance is a wash — same chip tier.

Camera
Galaxy A15 5G 55Galaxy M15 5G 55

Camera systems are comparable on paper — pick by sample photos.

Battery
Galaxy A15 5G 80Galaxy M15 5G 100

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

Software longevity
Galaxy A15 5G 36Galaxy M15 5G 40

The Galaxy M15 5G is supported until Apr 2029 — 4 months longer than the Galaxy A15 5G.

Value
Galaxy A15 5G 67Galaxy M15 5G 71

Overall value goes to the Galaxy M15 5G at $4.47 per month of safe use.

Full spec table
SpecGalaxy A15 5GGalaxy M15 5G
Price (street)$120$150
Display6.5-inch Super AMOLED, 1080x2340 (FHD+), 90Hz6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz
ChipsetDimensity 6100+MediaTek Dimensity 6100+
RAM4GB/6GB/8GB4GB/6GB/8GB
Storage128GB/256GB128GB/256GB
Battery5,000 mAh6,000 mAh
Charging25W wired25W wired
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main, 5MP ultra-wide, 2MP macro
Dimensions160.1 × 76.8 × 8.4 mm160.1 × 76.8 × 9.3 mm
Weight200 g217 g
Water resistanceNoneNone
Supported untilDec 2028Apr 2029

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