iPhone 15 Plus vs P3 Ultra 5G

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 P3 Ultra 5G runs out in Mar 2029 ($9.49/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 Plus 66 · P3 Ultra 5G 74 — 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

Realme P3 Ultra 5G $315

Buy with care$9.49/mo

2025◆ Buy-by Mar 20272029

Category by category

Display

iPhone 15 Plus 50P3 Ultra 5G 70

The P3 Ultra 5G's screen is the better one — 6.83-inch amoled, 1.5k, 120hz, up to 1500 nits peak, gorilla glass 7i.

Performance

iPhone 15 Plus 80P3 Ultra 5G 74

The iPhone 15 Plus's Apple A16 Bionic is simply the faster chip.

Camera

iPhone 15 Plus 62P3 Ultra 5G 67

The P3 Ultra 5G has the stronger camera system — same lens count, higher-grade sensors.

Battery

iPhone 15 Plus 68P3 Ultra 5G 100

6,000mAh vs 4,383mAh — the P3 Ultra 5G lasts longer between charges.

Software longevity

iPhone 15 Plus 61P3 Ultra 5G 40

The iPhone 15 Plus is supported until Sep 2030 — 18 months longer than the P3 Ultra 5G.

Value

iPhone 15 Plus 66P3 Ultra 5G 74

Overall value goes to the P3 Ultra 5G at $9.49 per month of safe use.

Full spec table

Spec	iPhone 15 Plus	P3 Ultra 5G
Price (street)	$403	$315
Display	6.7-inch Super Retina XDR OLED, 60Hz, up to 2000 nits peak	6.83-inch AMOLED, 1.5K, 120Hz, up to 1500 nits peak, Gorilla Glass 7i
Chipset	Apple A16 Bionic	MediaTek Dimensity 8350 Ultra (4nm)
RAM	6GB	8GB/12GB
Storage	128GB/256GB/512GB	128GB/256GB/512GB
Battery	4,383 mAh	6,000 mAh
Charging	20W+ wired (50% in ~30 min), MagSafe 15W wireless, Qi 7.5W	80W wired (100% in 47 min), 5W reverse
Rear cameras	48MP main, 12MP ultra-wide	50MP main, 8MP ultra-wide
Dimensions	160.9 × 77.8 × 7.8 mm	163.1 × 76.9 × 7.4 mm
Weight	201 g	183 g
Water resistance	IP68	IP68/IP69
Supported until	Sep 2030	Mar 2029

iPhone 15 Plus full verdict →P3 Ultra 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.