PhoneLifespan

Galaxy M17 5G vs Redmi K80

vs

Winner

Samsung Galaxy M17 5G

Lifespan decides this one: the Galaxy M17 5G is supported until Oct 2031 at $3.05 per month of safe use, while the Redmi K80 runs out in Nov 2029 ($8.59/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Galaxy M17 5G 75 · Redmi K80 79 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 M17 5G $195
Safe to buy$3.05/mo
2025◆ Buy-by Oct 20292031
Xiaomi Redmi K80 $355
Safe to buy$8.59/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
Galaxy M17 5G 50Redmi K80 80

The Redmi K80's screen is the better one — 6.67-inch amoled, 2k, 120hz, 3200 nits peak.

Performance
Galaxy M17 5G 45Redmi K80 92

The Redmi K80's Qualcomm Snapdragon 8 Gen 3 (4nm) is simply the faster chip.

Camera
Galaxy M17 5G 55Redmi K80 67

The Redmi K80 has the stronger camera system (2 real rear lenses vs 1).

Battery
Galaxy M17 5G 80Redmi K80 100

6,550mAh vs 5,000mAh — the Redmi K80 lasts longer between charges.

Software longevity
Galaxy M17 5G 76Redmi K80 49

The Galaxy M17 5G is supported until Oct 2031 — 23 months longer than the Redmi K80.

Value
Galaxy M17 5G 75Redmi K80 79

Overall value goes to the Redmi K80 at $8.59 per month of safe use.

Full spec table
SpecGalaxy M17 5GRedmi K80
Price (street)$195$355
Display6.7-inch Super AMOLED, FHD+, 90Hz, Gorilla Glass Victus6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak
ChipsetSamsung Exynos 1330 (5nm)Qualcomm Snapdragon 8 Gen 3 (4nm)
RAM4GB/6GB/8GB12GB/16GB
Storage128GB256GB/512GB/1TB
Battery5,000 mAh6,550 mAh
Charging25W wired90W wired, 30W wireless
Rear cameras50MP main, 5MP ultra-wide, 2MP macro50MP main, 8MP ultra-wide, 2MP macro
Dimensions164.4 × 77.9 × 7.5 mm160.3 × 75.0 × 8.0 mm
Weight192 g206 g
Water resistanceIP54IP68
Supported untilOct 2031Nov 2029

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