PhoneLifespan

Galaxy M15 5G vs Redmi A4 5G

vs

It depends

Too close to call outright

These two are within 1 point overall, so it depends on you: keep phones for years → Galaxy M15 5G (supported until Apr 2029); want maximum speed → Redmi A4 5G (Qualcomm Snapdragon 4s Gen 2 (4nm)).

Value Score: Galaxy M15 5G 71 · Redmi A4 5G 70 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$4.46/mo
2024◆ Buy-by Apr 20272029
Xiaomi Redmi A4 5G $100
Buy with care$3.41/mo
2024◆ Buy-by Nov 20262028

Category by category

Display
Galaxy M15 5G 50Redmi A4 5G 70

The Redmi A4 5G's screen is the better one — 6.88-inch ips lcd, hd+, 120hz.

Performance
Galaxy M15 5G 38Redmi A4 5G 55

The Redmi A4 5G's Qualcomm Snapdragon 4s Gen 2 (4nm) is simply the faster chip.

Camera
Galaxy M15 5G 55Redmi A4 5G 55

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

Battery
Galaxy M15 5G 100Redmi A4 5G 83

6,000mAh vs 5,160mAh — the Galaxy M15 5G lasts longer between charges.

Software longevity
Galaxy M15 5G 40Redmi A4 5G 35

The Galaxy M15 5G is supported until Apr 2029 — 4 months longer than the Redmi A4 5G.

Value
Galaxy M15 5G 71Redmi A4 5G 70

Pound for pound, these two are equally good deals.

Full spec table
SpecGalaxy M15 5GRedmi A4 5G
Price (street)$150$100
Display6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz6.88-inch IPS LCD, HD+, 120Hz
ChipsetMediaTek Dimensity 6100+Qualcomm Snapdragon 4s Gen 2 (4nm)
RAM4GB/6GB/8GB4GB
Storage128GB/256GB64GB/128GB
Battery6,000 mAh5,160 mAh
Charging25W wired18W wired (33W charger in box)
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main
Dimensions160.1 × 76.8 × 9.3 mm171.88 × 77.8 × 8.22 mm
Weight217 g212 g
Water resistanceNoneIP52
Supported untilApr 2029Nov 2028

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