PhoneLifespan

Galaxy M15 5G vs Spark 40 Pro+

vs

Winner

Samsung Galaxy M15 5G

Lifespan decides this one: the Galaxy M15 5G is supported until Apr 2029 at $4.47 per month of safe use, while the Spark 40 Pro+ runs out in Jul 2028 ($11.76/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M15 5G 71 · Spark 40 Pro+ 63 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
Tecno Spark 40 Pro+ $290
Buy with care$11.76/mo
2025◆ Buy-by Jul 20262028

Category by category

Display
Galaxy M15 5G 50Spark 40 Pro+ 80

The Spark 40 Pro+'s screen is the better one — 6.78-inch curved amoled, 1.5k, 144hz, up to 4500 nits peak, under-display fingerprint.

Performance
Galaxy M15 5G 38Spark 40 Pro+ 55

The Spark 40 Pro+'s MediaTek Helio G200 is simply the faster chip.

Camera
Galaxy M15 5G 55Spark 40 Pro+ 55

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

Battery
Galaxy M15 5G 100Spark 40 Pro+ 84

6,000mAh vs 5,200mAh — the Galaxy M15 5G lasts longer between charges.

Software longevity
Galaxy M15 5G 40Spark 40 Pro+ 29

The Galaxy M15 5G is supported until Apr 2029 — 9 months longer than the Spark 40 Pro+.

Value
Galaxy M15 5G 71Spark 40 Pro+ 63

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

Full spec table
SpecGalaxy M15 5GSpark 40 Pro+
Price (street)$150$290
Display6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz6.78-inch curved AMOLED, 1.5K, 144Hz, up to 4500 nits peak, under-display fingerprint
ChipsetMediaTek Dimensity 6100+MediaTek Helio G200
RAM4GB/6GB/8GB8GB
Storage128GB/256GB128GB/256GB
Battery6,000 mAh5,200 mAh
Charging25W wired45W wired, 30W wireless, 5W reverse wireless
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main, 2MP depth
Dimensions160.1 × 76.8 × 9.3 mm163.9 × 75.8 × 6.5 mm
Weight217 g160 g
Water resistanceNoneIP64
Supported untilApr 2029Jul 2028

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