PhoneLifespan

Galaxy S24 vs 15T

vs

It depends

Too close to call outright

These two are within 1 point overall — it genuinely depends on price on the day. The Galaxy S24 edges both longevity and performance, so prefer it when prices are close.

Value Score: Galaxy S24 71 · 15T 70 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 S24 $549
Safe to buy$9.87/mo
2024◆ Buy-by Jan 20292031
Xiaomi 15T $500
Safe to buy$9.73/mo
2025◆ Buy-by Sep 20282030

Category by category

Display
Galaxy S24 9015T 70

The Galaxy S24's screen is the better one — 6.2-inch dynamic amoled 2x, fhd+ (2340×1080), 1–120hz, up to 2600 nits.

Performance
Galaxy S24 9215T 78

The Galaxy S24's Snapdragon 8 Gen 3 for Galaxy (US) is simply the faster chip.

Camera
Galaxy S24 7915T 79

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

Battery
Galaxy S24 6015T 90

5,500mAh vs 4,000mAh — the 15T lasts longer between charges.

Software longevity
Galaxy S24 6615T 61

The Galaxy S24 is supported until Jan 2031 — 4 months longer than the 15T.

Value
Galaxy S24 7115T 70

Pound for pound, these two are equally good deals.

Full spec table
SpecGalaxy S2415T
Price (street)$549$500
Display6.2-inch Dynamic AMOLED 2X, FHD+ (2340×1080), 1–120Hz, up to 2600 nits6.83-inch AMOLED, 2772x1280, 144Hz
ChipsetSnapdragon 8 Gen 3 for Galaxy (US)MediaTek Dimensity 8400-Ultra
RAM8GB12GB
Storage128GB/256GB/512GB256GB/512GB
Battery4,000 mAh5,500 mAh
Charging25W wired, 15W wireless67W wired
Rear cameras50MP main, 12MP ultra-wide, 10MP telephoto 3x50MP main, 50MP telephoto 2x, 12MP ultra-wide
Dimensions147.0 × 70.6 × 7.6 mm163.2 × 78.0 × 7.5 mm
Weight167 g194 g
Water resistanceIP68IP68
Supported untilJan 2031Sep 2030

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