15 vs Redmi K80

Phone 1

Phone 2

Winner

Xiaomi Redmi K80

The Redmi K80 wins this one, taking battery decisively. Against the 15 it's also the sounder buy at $8.59 per month of safe use.

Value Score: 15 67 · 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.

Xiaomi 15 $750

Safe to buy$16.87/mo

2025◆ Buy-by Mar 20282030

Xiaomi Redmi K80 $355

Safe to buy$8.59/mo

2024◆ Buy-by Nov 20272029

Category by category

Display

15 90Redmi K80 80

The 15's screen is the better one — 6.36-inch crystalres amoled, 2670×1200 (460 ppi), 1–120hz ltpo, up to 3200 nits peak, dolby vision/hdr10+.

Performance

15 98Redmi K80 92

The 15's Snapdragon 8 Elite is simply the faster chip.

Camera

15 79Redmi K80 67

The 15 has the stronger camera system (3 real rear lenses vs 2).

Battery

15 85Redmi K80 100

6,550mAh vs 5,240mAh — the Redmi K80 lasts longer between charges.

Software longevity

15 53Redmi K80 49

The 15 is supported until Mar 2030 — 3 months longer than the Redmi K80.

Value

15 67Redmi K80 79

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

Full spec table

Spec	15	Redmi K80
Price (street)	$750	$355
Display	6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+	6.67-inch AMOLED, 2K, 120Hz, 3200 nits peak
Chipset	Snapdragon 8 Elite	Qualcomm Snapdragon 8 Gen 3 (4nm)
RAM	12GB	12GB/16GB
Storage	256GB/512GB	256GB/512GB/1TB
Battery	5,240 mAh	6,550 mAh
Charging	90W wired, 50W wireless	90W wired, 30W wireless
Rear cameras	50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)	50MP main, 8MP ultra-wide, 2MP macro
Dimensions	152.3 × 71.2 × 8.08 mm	160.3 × 75.0 × 8.0 mm
Weight	191 g	206 g
Water resistance	IP68	IP68
Supported until	Mar 2030	Nov 2029

15 full verdict →Redmi K80 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.