12 4G vs Redmi Note 15 Pro 5G

Phone 1

Phone 2

Winner

Xiaomi Redmi Note 15 Pro 5G

Lifespan decides this one: the Redmi Note 15 Pro 5G is supported until Jan 2030 at $7.45 per month of safe use, while the 12 4G runs out in Jul 2028 ($7.16/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: 12 4G 63 · Redmi Note 15 Pro 5G 73 — methodology

The lifespan decider

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

Realme 12 4G $175

Buy with care$7.16/mo

2024◆ Buy-by Jul 20262028

Xiaomi Redmi Note 15 Pro 5G $320

Safe to buy$7.45/mo

2026◆ Buy-by Jan 20282030

Category by category

Display

12 4G 70Redmi Note 15 Pro 5G 70

Both displays are effectively the same class.

Performance

12 4G 36Redmi Note 15 Pro 5G 62

The Redmi Note 15 Pro 5G's MediaTek Dimensity 7400-Ultra (4nm) is simply the faster chip.

Camera

12 4G 55Redmi Note 15 Pro 5G 72

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

Battery

12 4G 80Redmi Note 15 Pro 5G 100

6,580mAh vs 5,000mAh — the Redmi Note 15 Pro 5G lasts longer between charges.

Software longevity

12 4G 29Redmi Note 15 Pro 5G 51

The Redmi Note 15 Pro 5G is supported until Jan 2030 — 18 months longer than the 12 4G.

Value

12 4G 63Redmi Note 15 Pro 5G 73

Overall value goes to the Redmi Note 15 Pro 5G at $7.45 per month of safe use.

Full spec table

Spec	12 4G	Redmi Note 15 Pro 5G
Price (street)	$175	$320
Display	6.67-inch AMOLED, FHD+, 120Hz, up to 2000 nits peak	6.83-inch AMOLED, 1.5K, 120Hz, 12-bit, Dolby Vision/HDR10+
Chipset	Qualcomm Snapdragon 685 (6nm)	MediaTek Dimensity 7400-Ultra (4nm)
RAM	8GB	8GB/12GB
Storage	128GB/256GB	256GB/512GB
Battery	5,000 mAh	6,580 mAh
Charging	67W wired SUPERVOOC	45W wired, 22.5W reverse wired
Rear cameras	50MP main, 2MP depth	200MP main, 8MP ultra-wide
Dimensions	163 × 75.5 × 7.9 mm	163.6 × 78.1 × 8.0 mm
Weight	187 g	210 g
Water resistance	IP54	IP68/IP69
Supported until	Jul 2028	Jan 2030

12 4G full verdict →Redmi Note 15 Pro 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.