GT 6T vs Galaxy M15 5G

Phone 1

Phone 2

Winner

Samsung Galaxy M15 5G

Lifespan decides this one: the Galaxy M15 5G is supported until Apr 2029 at $4.46 per month of safe use, while the GT 6T runs out in May 2028 ($14.56/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: GT 6T 72 · Galaxy M15 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.

Realme GT 6T $340

Buy with care$14.56/mo

2024◆ Buy-by May 20262028

Samsung Galaxy M15 5G $150

Buy with care$4.46/mo

2024◆ Buy-by Apr 20272029

Category by category

Display

GT 6T 90Galaxy M15 5G 50

The GT 6T's screen is the better one — 6.78-inch ltpo amoled, 1.5k, 120hz, up to 6000 nits peak, gorilla glass victus 2.

Performance

GT 6T 78Galaxy M15 5G 38

The GT 6T's Qualcomm Snapdragon 7+ Gen 3 (4nm) is simply the faster chip.

Camera

GT 6T 67Galaxy M15 5G 55

The GT 6T has the stronger camera system (2 real rear lenses vs 1).

Battery

GT 6T 90Galaxy M15 5G 100

6,000mAh vs 5,500mAh — the Galaxy M15 5G lasts longer between charges.

Software longevity

GT 6T 28Galaxy M15 5G 40

The Galaxy M15 5G is supported until Apr 2029 — 10 months longer than the GT 6T.

Value

GT 6T 72Galaxy M15 5G 71

Pound for pound, these two are equally good deals.

Full spec table

Spec	GT 6T	Galaxy M15 5G
Price (street)	$340	$150
Display	6.78-inch LTPO AMOLED, 1.5K, 120Hz, up to 6000 nits peak, Gorilla Glass Victus 2	6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz
Chipset	Qualcomm Snapdragon 7+ Gen 3 (4nm)	MediaTek Dimensity 6100+
RAM	8GB/12GB	4GB/6GB/8GB
Storage	128GB/256GB/512GB	128GB/256GB
Battery	5,500 mAh	6,000 mAh
Charging	120W wired (50% in 10 min)	25W wired
Rear cameras	50MP main, 8MP ultra-wide	50MP main, 5MP ultra-wide, 2MP macro
Dimensions	162 × 75.1 × 8.7 mm	160.1 × 76.8 × 9.3 mm
Weight	191 g	217 g
Water resistance	IP65	None
Supported until	May 2028	Apr 2029

GT 6T full verdict →Galaxy M15 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.