PhoneLifespan

Galaxy M15 5G vs 13T

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 13T runs out in Sep 2028 ($12.84/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M15 5G 71 · 13T 69 — 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
Xiaomi 13T $350
Buy with care$12.84/mo
2023◆ Buy-by Sep 20262028

Category by category

Display
Galaxy M15 5G 5013T 70

The 13T's screen is the better one — 6.67-inch amoled, 2712 x 1220, 144hz.

Performance
Galaxy M15 5G 3813T 75

The 13T's MediaTek Dimensity 8200 Ultra is simply the faster chip.

Camera
Galaxy M15 5G 5513T 79

The 13T has the stronger camera system (3 real rear lenses vs 1).

Battery
Galaxy M15 5G 10013T 80

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

Software longevity
Galaxy M15 5G 4013T 32

The Galaxy M15 5G is supported until Apr 2029 — 6 months longer than the 13T.

Value
Galaxy M15 5G 7113T 69

Pound for pound, these two are equally good deals.

Full spec table
SpecGalaxy M15 5G13T
Price (street)$150$350
Display6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz6.67-inch AMOLED, 2712 x 1220, 144Hz
ChipsetMediaTek Dimensity 6100+MediaTek Dimensity 8200 Ultra
RAM4GB/6GB/8GB8GB/12GB
Storage128GB/256GB256GB
Battery6,000 mAh5,000 mAh
Charging25W wired67W wired
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main, 12MP ultra-wide, 50MP telephoto 2x
Dimensions160.1 × 76.8 × 9.3 mm162.2 × 75.7 × 8.5 mm
Weight217 g197 g
Water resistanceNoneIP68
Supported untilApr 2029Sep 2028
Galaxy M15 5G full verdict →13T full verdict →Longevity master board →

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