Redmi A4 5G vs Redmi Note 15 5G

Phone 1

Phone 2

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 A4 5G runs out in Nov 2028 ($3.41/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Redmi A4 5G 70 · 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 A4 5G $100

Buy with care$3.41/mo

2024◆ Buy-by Nov 20262028

Xiaomi Redmi Note 15 5G $250

Safe to buy$6.03/mo

2025◆ Buy-by Dec 20272029

Category by category

Display

Redmi A4 5G 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 A4 5G 55Redmi Note 15 5G 48

The Redmi A4 5G's Qualcomm Snapdragon 4s Gen 2 (4nm) is simply the faster chip.

Camera

Redmi A4 5G 55Redmi Note 15 5G 67

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

Battery

Redmi A4 5G 83Redmi Note 15 5G 90

5,520mAh vs 5,160mAh — the Redmi Note 15 5G lasts longer between charges.

Software longevity

Redmi A4 5G 35Redmi Note 15 5G 49

The Redmi Note 15 5G is supported until Dec 2029 — 12 months longer than the Redmi A4 5G.

Value

Redmi A4 5G 70Redmi Note 15 5G 71

Pound for pound, these two are equally good deals.

Full spec table

Spec	Redmi A4 5G	Redmi Note 15 5G
Price (street)	$100	$250
Display	6.88-inch IPS LCD, HD+, 120Hz	6.77-inch AMOLED, FHD+, 120Hz, 3200 nits peak
Chipset	Qualcomm Snapdragon 4s Gen 2 (4nm)	Qualcomm Snapdragon 6 Gen 3
RAM	4GB	8GB
Storage	64GB/128GB	256GB/512GB
Battery	5,160 mAh	5,520 mAh
Charging	18W wired (33W charger in box)	45W wired
Rear cameras	50MP main	108MP main, 8MP ultra-wide
Dimensions	171.88 × 77.8 × 8.22 mm	164 × 75.4 × 7.4 mm
Weight	212 g	178 g
Water resistance	IP52	IP66
Supported until	Nov 2028	Dec 2029

Redmi A4 5G full verdict →Redmi Note 15 5G 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.