PhoneLifespan

Galaxy M16 5G vs Redmi Note 15 5G

vs

Winner

Samsung Galaxy M16 5G

Lifespan decides this one: the Galaxy M16 5G is supported until Feb 2031 at $2.66 per month of safe use, while the Redmi Note 15 5G runs out in Dec 2029 ($6.03/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M16 5G 75 · 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 M16 5G $150
Safe to buy$2.66/mo
2025◆ Buy-by Feb 20292031
Xiaomi Redmi Note 15 5G $250
Safe to buy$6.03/mo
2025◆ Buy-by Dec 20272029

Category by category

Display
Galaxy M16 5G 50Redmi 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 M16 5G 42Redmi Note 15 5G 48

The Redmi Note 15 5G's Qualcomm Snapdragon 6 Gen 3 is simply the faster chip.

Camera
Galaxy M16 5G 55Redmi Note 15 5G 67

The Redmi Note 15 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
Galaxy M16 5G 80Redmi Note 15 5G 90

5,520mAh vs 5,000mAh — the Redmi Note 15 5G lasts longer between charges.

Software longevity
Galaxy M16 5G 67Redmi Note 15 5G 49

The Galaxy M16 5G is supported until Feb 2031 — 15 months longer than the Redmi Note 15 5G.

Value
Galaxy M16 5G 75Redmi Note 15 5G 71

Overall value goes to the Galaxy M16 5G at $2.66 per month of safe use.

Full spec table
SpecGalaxy M16 5GRedmi Note 15 5G
Price (street)$150$250
Display6.7-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
ChipsetMediaTek Dimensity 6300Qualcomm Snapdragon 6 Gen 3
RAM4GB/6GB/8GB8GB
Storage128GB/256GB256GB/512GB
Battery5,000 mAh5,520 mAh
Charging25W wired45W wired
Rear cameras50MP main, 5MP ultra-wide, 2MP macro108MP main, 8MP ultra-wide
Dimensions164.6 × 77.9 × 7.9 mm164 × 75.4 × 7.4 mm
Weight191 g178 g
Water resistanceNoneIP66
Supported untilFeb 2031Dec 2029

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