Redmi K70 Ultra 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 Redmi K70 Ultra runs out in Jul 2028 ($15.17/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Redmi K70 Ultra 73 · 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.

Xiaomi Redmi K70 Ultra $380

Buy with care$15.17/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

Redmi K70 Ultra 80Redmi Note 15 Pro 5G 70

The Redmi K70 Ultra's screen is the better one — 6.67-inch amoled, 1.5k, 144hz, 4000 nits peak, dolby vision.

Performance

Redmi K70 Ultra 95Redmi Note 15 Pro 5G 62

The Redmi K70 Ultra's MediaTek Dimensity 9300+ (4nm) is simply the faster chip.

Camera

Redmi K70 Ultra 67Redmi Note 15 Pro 5G 72

The Redmi Note 15 Pro 5G has the stronger camera system — same lens count, higher-grade sensors.

Battery

Redmi K70 Ultra 90Redmi Note 15 Pro 5G 100

6,580mAh vs 5,500mAh — the Redmi Note 15 Pro 5G lasts longer between charges.

Software longevity

Redmi K70 Ultra 30Redmi Note 15 Pro 5G 51

The Redmi Note 15 Pro 5G is supported until Jan 2030 — 18 months longer than the Redmi K70 Ultra.

Value

Redmi K70 Ultra 73Redmi Note 15 Pro 5G 73

Pound for pound, these two are equally good deals.

Full spec table

Spec	Redmi K70 Ultra	Redmi Note 15 Pro 5G
Price (street)	$380	$320
Display	6.67-inch AMOLED, 1.5K, 144Hz, 4000 nits peak, Dolby Vision	6.83-inch AMOLED, 1.5K, 120Hz, 12-bit, Dolby Vision/HDR10+
Chipset	MediaTek Dimensity 9300+ (4nm)	MediaTek Dimensity 7400-Ultra (4nm)
RAM	12GB/16GB/24GB	8GB/12GB
Storage	256GB/512GB/1TB	256GB/512GB
Battery	5,500 mAh	6,580 mAh
Charging	120W wired	45W wired, 22.5W reverse wired
Rear cameras	50MP main, 8MP ultra-wide, 2MP macro	200MP main, 8MP ultra-wide
Dimensions	160.4 × 75.1 × 8.4 mm	163.6 × 78.1 × 8.0 mm
Weight	211 g	210 g
Water resistance	IP68	IP68/IP69
Supported until	Jul 2028	Jan 2030

Redmi K70 Ultra 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.