PhoneLifespan

15 vs Redmi A5

vs

Winner

Xiaomi 15

Lifespan decides this one: the 15 is supported until Mar 2030 at $16.87 per month of safe use, while the Redmi A5 runs out in Mar 2028 ($3.55/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 15 67 · Redmi A5 65 — 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 A5 $75
Buy with care$3.55/mo
2025◆ Buy-by Mar 20262028

Category by category

Display
15 90Redmi A5 70

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 A5 55

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

Camera
15 79Redmi A5 40

The 15 has the stronger camera system (3 real rear lenses vs 1).

Battery
15 85Redmi A5 84

Battery capacities are close enough not to decide this.

Software longevity
15 53Redmi A5 25

The 15 is supported until Mar 2030 — 23 months longer than the Redmi A5.

Value
15 67Redmi A5 65

Pound for pound, these two are equally good deals.

Full spec table
Spec15Redmi A5
Price (street)$750$75
Display6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+6.88-inch IPS LCD, HD+, 120Hz
ChipsetSnapdragon 8 EliteUnisoc T7250
RAM12GB3GB/4GB/6GB
Storage256GB/512GB64GB/128GB
Battery5,240 mAh5,200 mAh
Charging90W wired, 50W wireless15W wired
Rear cameras50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)32MP main
Dimensions152.3 × 71.2 × 8.08 mm171.4 × 77.8 × 8.3 mm
Weight191 g193 g
Water resistanceIP68IP52
Supported untilMar 2030Mar 2028
15 full verdict →Redmi A5 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.