PhoneLifespan

Galaxy A15 5G vs T4 5G

vs

Winner

Samsung Galaxy A15 5G

Lifespan decides this one: the Galaxy A15 5G is supported until Dec 2028 at $4.00 per month of safe use, while the T4 5G runs out in Apr 2028 ($11.62/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy A15 5G 67 · T4 5G 72 — 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 A15 5G $120
Buy with care$4.00/mo
2023◆ Buy-by Dec 20262028
Vivo T4 5G $260
Buy with care$11.62/mo
2025◆ Buy-by Apr 20262028

Category by category

Display
Galaxy A15 5G 50T4 5G 80

The T4 5G's screen is the better one — 6.77-inch amoled, fhd+, 120hz, 5000 nits peak.

Performance
Galaxy A15 5G 38T4 5G 64

The T4 5G's Qualcomm Snapdragon 7s Gen 3 is simply the faster chip.

Camera
Galaxy A15 5G 55T4 5G 55

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

Battery
Galaxy A15 5G 80T4 5G 100

7,300mAh vs 5,000mAh — the T4 5G lasts longer between charges.

Software longevity
Galaxy A15 5G 36T4 5G 27

The Galaxy A15 5G is supported until Dec 2028 — 8 months longer than the T4 5G.

Value
Galaxy A15 5G 67T4 5G 72

Overall value goes to the T4 5G at $11.62 per month of safe use.

Full spec table
SpecGalaxy A15 5GT4 5G
Price (street)$120$260
Display6.5-inch Super AMOLED, 1080x2340 (FHD+), 90Hz6.77-inch AMOLED, FHD+, 120Hz, 5000 nits peak
ChipsetDimensity 6100+Qualcomm Snapdragon 7s Gen 3
RAM4GB/6GB/8GB8GB/12GB
Storage128GB/256GB128GB/256GB
Battery5,000 mAh7,300 mAh
Charging25W wired90W wired
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main, 2MP depth
Dimensions160.1 × 76.8 × 8.4 mm163.4 × 76.4 × 7.9 mm
Weight200 g199 g
Water resistanceNoneIP65
Supported untilDec 2028Apr 2028
Galaxy A15 5G full verdict →T4 5G 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.