iPhone 15 Plus vs Redmi K70 Ultra

Phone 1

Phone 2

Winner

Apple iPhone 15 Plus

Lifespan decides this one: the iPhone 15 Plus is supported until Sep 2030 at $7.88 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: iPhone 15 Plus 66 · Redmi K70 Ultra 73 — methodology

The lifespan decider

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

Apple iPhone 15 Plus $403

Safe to buy$7.88/mo

2023◆ Buy-by Sep 20282030

Xiaomi Redmi K70 Ultra $380

Buy with care$15.17/mo

2024◆ Buy-by Jul 20262028

Category by category

Display

iPhone 15 Plus 50Redmi K70 Ultra 80

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

Performance

iPhone 15 Plus 80Redmi K70 Ultra 95

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

Camera

iPhone 15 Plus 62Redmi K70 Ultra 67

The Redmi K70 Ultra has the stronger camera system — same lens count, higher-grade sensors.

Battery

iPhone 15 Plus 68Redmi K70 Ultra 90

5,500mAh vs 4,383mAh — the Redmi K70 Ultra lasts longer between charges.

Software longevity

iPhone 15 Plus 61Redmi K70 Ultra 30

The iPhone 15 Plus is supported until Sep 2030 — 26 months longer than the Redmi K70 Ultra.

Value

iPhone 15 Plus 66Redmi K70 Ultra 73

Overall value goes to the Redmi K70 Ultra at $15.17 per month of safe use.

Full spec table

Spec	iPhone 15 Plus	Redmi K70 Ultra
Price (street)	$403	$380
Display	6.7-inch Super Retina XDR OLED, 60Hz, up to 2000 nits peak	6.67-inch AMOLED, 1.5K, 144Hz, 4000 nits peak, Dolby Vision
Chipset	Apple A16 Bionic	MediaTek Dimensity 9300+ (4nm)
RAM	6GB	12GB/16GB/24GB
Storage	128GB/256GB/512GB	256GB/512GB/1TB
Battery	4,383 mAh	5,500 mAh
Charging	20W+ wired (50% in ~30 min), MagSafe 15W wireless, Qi 7.5W	120W wired
Rear cameras	48MP main, 12MP ultra-wide	50MP main, 8MP ultra-wide, 2MP macro
Dimensions	160.9 × 77.8 × 7.8 mm	160.4 × 75.1 × 8.4 mm
Weight	201 g	211 g
Water resistance	IP68	IP68
Supported until	Sep 2030	Jul 2028

iPhone 15 Plus full verdict →Redmi K70 Ultra 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.