14 vs 15

Phone 1

Phone 2

Winner

Xiaomi 15

Lifespan decides this one: the 15 is supported until Mar 2030 at $16.87 per month of safe use, while the 14 runs out in Feb 2029 ($17.02/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 14 65 · 15 67 — methodology

The lifespan decider

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

Xiaomi 14 $550

Buy with care$17.02/mo

2024◆ Buy-by Feb 20272029

Xiaomi 15 $750

Safe to buy$16.87/mo

2025◆ Buy-by Mar 20282030

Category by category

Display

14 8015 90

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

14 9215 98

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

Camera

14 7915 79

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

Battery

14 7215 85

5,240mAh vs 4,610mAh — the 15 lasts longer between charges.

Software longevity

14 3815 53

The 15 is supported until Mar 2030 — 12 months longer than the 14.

Value

14 6515 67

Pound for pound, these two are equally good deals.

Full spec table

Spec	14	15
Price (street)	$550	$750
Display	6.36-inch LTPO AMOLED, 2670×1200 (460 ppi), 1–120Hz, 1000 nits typical / up to 3000 nits peak	6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+
Chipset	Snapdragon 8 Gen 3	Snapdragon 8 Elite
RAM	12GB	12GB
Storage	256GB/512GB	256GB/512GB
Battery	4,610 mAh	5,240 mAh
Charging	90W wired, 50W wireless	90W wired, 50W wireless
Rear cameras	50MP main (Leica Summilux, f/1.6, OIS), 50MP ultra-wide (115° FOV), 50MP telephoto (Leica 75mm floating, OIS)	50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)
Dimensions	152.8 × 71.5 × 8.2 mm	152.3 × 71.2 × 8.08 mm
Weight	193 g	191 g
Water resistance	IP68	IP68
Supported until	Feb 2029	Mar 2030

14 full verdict →15 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.