PhoneLifespan

Redmi A5 vs Redmi Note 15 5G

vs

Winner

Xiaomi Redmi Note 15 5G

Lifespan decides this one: the Redmi Note 15 5G is supported until Dec 2029 at $6.03 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: Redmi A5 65 · Redmi Note 15 5G 71 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 A5 $75
Buy with care$3.55/mo
2025◆ Buy-by Mar 20262028
Xiaomi Redmi Note 15 5G $250
Safe to buy$6.03/mo
2025◆ Buy-by Dec 20272029

Category by category

Display
Redmi A5 70Redmi Note 15 5G 80

The Redmi Note 15 5G's screen is the better one — 6.77-inch amoled, fhd+, 120hz, 3200 nits peak.

Performance
Redmi A5 55Redmi Note 15 5G 48

The Redmi A5's Unisoc T7250 is simply the faster chip.

Camera
Redmi A5 40Redmi Note 15 5G 67

The Redmi Note 15 5G has the stronger camera system (2 real rear lenses vs 1).

Battery
Redmi A5 84Redmi Note 15 5G 90

5,520mAh vs 5,200mAh — the Redmi Note 15 5G lasts longer between charges.

Software longevity
Redmi A5 25Redmi Note 15 5G 49

The Redmi Note 15 5G is supported until Dec 2029 — 20 months longer than the Redmi A5.

Value
Redmi A5 65Redmi Note 15 5G 71

Overall value goes to the Redmi Note 15 5G at $6.03 per month of safe use.

Full spec table
SpecRedmi A5Redmi Note 15 5G
Price (street)$75$250
Display6.88-inch IPS LCD, HD+, 120Hz6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
ChipsetUnisoc T7250Qualcomm Snapdragon 6 Gen 3
RAM3GB/4GB/6GB8GB
Storage64GB/128GB256GB/512GB
Battery5,200 mAh5,520 mAh
Charging15W wired45W wired
Rear cameras32MP main108MP main, 8MP ultra-wide
Dimensions171.4 × 77.8 × 8.3 mm164 × 75.4 × 7.4 mm
Weight193 g178 g
Water resistanceIP52IP66
Supported untilMar 2028Dec 2029

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