PhoneLifespan

Galaxy M54 5G vs Redmi Note 15 5G

vs

Winner

Xiaomi Redmi Note 15 5G

Lifespan decides this one: the Redmi Note 15 5G is supported until Dec 2029 at $6.03 per month of safe use, while the Galaxy M54 5G runs out in Mar 2028 ($10.41/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M54 5G 72 · Redmi Note 15 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 M54 5G $220
Buy with care$10.41/mo
2023◆ Buy-by Mar 20262028
Xiaomi Redmi Note 15 5G $250
Safe to buy$6.03/mo
2025◆ Buy-by Dec 20272029

Category by category

Display
Galaxy M54 5G 70Redmi Note 15 5G 80

The Redmi Note 15 5G's screen is the better one — 6.77-inch amoled, fhd+, 120hz, 3200 nits peak.

Performance
Galaxy M54 5G 58Redmi Note 15 5G 48

The Galaxy M54 5G's Samsung Exynos 1380 is simply the faster chip.

Camera
Galaxy M54 5G 67Redmi Note 15 5G 67

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

Battery
Galaxy M54 5G 100Redmi Note 15 5G 90

6,000mAh vs 5,520mAh — the Galaxy M54 5G lasts longer between charges.

Software longevity
Galaxy M54 5G 25Redmi Note 15 5G 49

The Redmi Note 15 5G is supported until Dec 2029 — 20 months longer than the Galaxy M54 5G.

Value
Galaxy M54 5G 72Redmi Note 15 5G 71

Pound for pound, these two are equally good deals.

Full spec table
SpecGalaxy M54 5GRedmi Note 15 5G
Price (street)$220$250
Display6.7-inch Super AMOLED Plus, 1080x2400 (FHD+), 120Hz6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
ChipsetSamsung Exynos 1380Qualcomm Snapdragon 6 Gen 3
RAM8GB8GB
Storage128GB/256GB256GB/512GB
Battery6,000 mAh5,520 mAh
Charging25W wired45W wired
Rear cameras108MP main, 8MP ultra-wide, 2MP macro108MP main, 8MP ultra-wide
Dimensions164.9 × 77.3 × 8.4 mm164 × 75.4 × 7.4 mm
Weight199 g178 g
Water resistanceNoneIP66
Supported untilMar 2028Dec 2029

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