PhoneLifespan

Galaxy M15 5G vs Redmi Turbo 4

vs

Winner

Xiaomi Redmi Turbo 4

The Redmi Turbo 4 wins this one, taking performance and display decisively. Against the Galaxy M15 5G it's also the sounder buy at $7.04 per month of safe use.

Value Score: Galaxy M15 5G 71 · Redmi Turbo 4 76 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 Redmi Turbo 4 $215
Buy with care$7.04/mo
2025◆ Buy-by Jan 20272029

Category by category

Display
Galaxy M15 5G 50Redmi Turbo 4 80

The Redmi Turbo 4's screen is the better one — 6.67-inch ltps oled, 1.5k, 120hz, 3200 nits peak.

Performance
Galaxy M15 5G 38Redmi Turbo 4 78

The Redmi Turbo 4's MediaTek Dimensity 8400-Ultra (4nm) is simply the faster chip.

Camera
Galaxy M15 5G 55Redmi Turbo 4 67

The Redmi Turbo 4 has the stronger camera system (2 real rear lenses vs 1).

Battery
Galaxy M15 5G 100Redmi Turbo 4 100

Battery capacities are close enough not to decide this.

Software longevity
Galaxy M15 5G 40Redmi Turbo 4 36

The Galaxy M15 5G is supported until Apr 2029 — 3 months longer than the Redmi Turbo 4.

Value
Galaxy M15 5G 71Redmi Turbo 4 76

Overall value goes to the Redmi Turbo 4 at $7.04 per month of safe use.

Full spec table
SpecGalaxy M15 5GRedmi Turbo 4
Price (street)$150$215
Display6.5-inch Super AMOLED, 1080 x 2340 (FHD+), 90Hz6.67-inch LTPS OLED, 1.5K, 120Hz, 3200 nits peak
ChipsetMediaTek Dimensity 6100+MediaTek Dimensity 8400-Ultra (4nm)
RAM4GB/6GB/8GB12GB/16GB
Storage128GB/256GB256GB/512GB
Battery6,000 mAh6,550 mAh
Charging25W wired90W wired
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main, 8MP ultra-wide
Dimensions160.1 × 76.8 × 9.3 mm161 × 75.2 × 8.1 mm
Weight217 g204 g
Water resistanceNoneIP68
Supported untilApr 2029Jan 2029

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