iPhone 17 vs 15 Ultra

Phone 1

Phone 2

Winner

Apple iPhone 17

Lifespan decides this one: the iPhone 17 is supported until Sep 2032 at $10.62 per month of safe use, while the 15 Ultra runs out in Mar 2030 ($30.26/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 17 68 · 15 Ultra 65 — 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 17 $799

Safe to buy$10.62/mo

2025◆ Buy-by Sep 20302032

Xiaomi 15 Ultra $1350

Safe to buy$30.26/mo

2025◆ Buy-by Mar 20282030

Category by category

Display

iPhone 17 9015 Ultra 100

The 15 Ultra's screen is the better one — 6.73-inch 2k (1440×3200) ltpo amoled, 1–120hz, up to 3200 nits peak.

Performance

iPhone 17 9615 Ultra 98

Performance is a wash — same chip tier.

Camera

iPhone 17 6215 Ultra 96

The 15 Ultra has the stronger camera system (4 real rear lenses vs 2).

Battery

iPhone 17 5415 Ultra 88

5,410mAh vs 3,692mAh — the 15 Ultra lasts longer between charges.

Software longevity

iPhone 17 9015 Ultra 53

The iPhone 17 is supported until Sep 2032 — 31 months longer than the 15 Ultra.

Value

iPhone 17 6815 Ultra 65

Pound for pound, these two are equally good deals.

Full spec table

Spec	iPhone 17	15 Ultra
Price (street)	$799	$1350
Display	6.3-inch Super Retina XDR OLED, ProMotion 1–120Hz, up to 3000 nits peak	6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak
Chipset	Apple A19	Qualcomm Snapdragon 8 Elite (3nm)
RAM	8GB	16GB
Storage	256GB/512GB	512GB/1TB
Battery	3,692 mAh	5,410 mAh
Charging	Wired fast charge — 50% in 20 min with a 40W+ adapter; MagSafe wireless up to 25W	90W wired, 80W wireless
Rear cameras	48MP main, 48MP ultra-wide	50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto
Dimensions	149.6 × 71.5 × 7.95 mm	161.3 × 75.3 × 9.35 mm
Weight	177 g	226 g
Water resistance	IP68	IP68
Supported until	Sep 2032	Mar 2030

iPhone 17 full verdict →15 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.