PhoneLifespan

Redmi 15 5G vs Redmi K80 Pro

vs

Winner

Xiaomi Redmi 15 5G

Lifespan decides this one: the Redmi 15 5G is supported until Aug 2029 at $4.80 per month of safe use, while the Redmi K80 Pro runs out in Nov 2029 ($12.09/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Redmi 15 5G 75 · Redmi K80 Pro 75 methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Xiaomi Redmi 15 5G $180
Safe to buy$4.80/mo
2025◆ Buy-by Aug 20272029
Xiaomi Redmi K80 Pro $500
Safe to buy$12.09/mo
2024◆ Buy-by Nov 20272029

Category by category

Display
Redmi 15 5G 70Redmi K80 Pro 80

The Redmi K80 Pro's screen is the better one — 6.67-inch amoled, 2k, 120hz, 3200 nits peak, 12-bit.

Performance
Redmi 15 5G 46Redmi K80 Pro 98

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

Camera
Redmi 15 5G 55Redmi K80 Pro 79

The Redmi K80 Pro has the stronger camera system (3 real rear lenses vs 1).

Battery
Redmi 15 5G 100Redmi K80 Pro 100

Battery capacities are close enough not to decide this.

Software longevity
Redmi 15 5G 45Redmi K80 Pro 49

The Redmi K80 Pro is supported until Nov 2029 — 4 months longer than the Redmi 15 5G.

Value
Redmi 15 5G 75Redmi K80 Pro 75

Pound for pound, these two are equally good deals.

Full spec table
SpecRedmi 15 5GRedmi K80 Pro
Price (street)$180$500
Display6.9-inch IPS LCD, FHD+, 144Hz, 850 nits peak6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak, 12-bit
ChipsetQualcomm Snapdragon 6s Gen 3Qualcomm Snapdragon 8 Elite (3nm)
RAM4GB/6GB/8GB12GB/16GB/24GB
Storage128GB/256GB256GB/512GB/1TB
Battery7,000 mAh6,000 mAh
Charging33W wired, 18W reverse wired120W wired, 50W wireless
Rear cameras50MP main, 2MP depth50MP main, 50MP telephoto, 32MP ultra-wide
Dimensions169.5 × 80.5 × 8.4 mm160.3 × 75.0 × 8.0 mm
Weight217 g213 g
Water resistanceIP64IP68
Supported untilAug 2029Nov 2029

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