iPhone 15 Pro Max vs X100 Ultra

Phone 1

Phone 2

Winner

Apple iPhone 15 Pro Max

Lifespan decides this one: the iPhone 15 Pro Max is supported until Sep 2030 at $14.86 per month of safe use, while the X100 Ultra runs out in May 2029 ($20.39/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 Pro Max 63 · X100 Ultra 66 — 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 Pro Max $760

Safe to buy$14.86/mo

2023◆ Buy-by Sep 20282030

Vivo X100 Ultra $720

Buy with care$20.39/mo

2024◆ Buy-by May 20272029

Category by category

Display

iPhone 15 Pro Max 80X100 Ultra 90

The X100 Ultra's screen is the better one — 6.78-inch ltpo amoled, 120hz, 3000 nits peak.

Performance

iPhone 15 Pro Max 88X100 Ultra 92

The X100 Ultra's Snapdragon 8 Gen 3 is simply the faster chip.

Camera

iPhone 15 Pro Max 74X100 Ultra 84

The X100 Ultra has the stronger camera system — same lens count, higher-grade sensors.

Battery

iPhone 15 Pro Max 68X100 Ultra 90

5,500mAh vs 4,422mAh — the X100 Ultra lasts longer between charges.

Software longevity

iPhone 15 Pro Max 61X100 Ultra 42

The iPhone 15 Pro Max is supported until Sep 2030 — 16 months longer than the X100 Ultra.

Value

iPhone 15 Pro Max 63X100 Ultra 66

Pound for pound, these two are equally good deals.

Full spec table

Spec	iPhone 15 Pro Max	X100 Ultra
Price (street)	$760	$720
Display	6.7-inch Super Retina XDR OLED, 120Hz ProMotion, Always-On, Dynamic Island, up to 2000 nits peak	6.78-inch LTPO AMOLED, 120Hz, 3000 nits peak
Chipset	Apple A17 Pro	Snapdragon 8 Gen 3
RAM	8GB	12GB/16GB
Storage	256GB/512GB/1TB	256GB/512GB/1TB
Battery	4,422 mAh	5,500 mAh
Charging	Wired ~50% in 30 min with 20W+; MagSafe 15W wireless	80W wired, 30W wireless
Rear cameras	48MP main, 12MP ultra-wide, 12MP telephoto	50MP main, 200MP periscope telephoto, 50MP ultra-wide
Dimensions	159.9 × 76.7 × 8.25 mm	164.1 x 75.6 x 9.2 mm
Weight	221 g	229 g
Water resistance	IP68	IP68/IP69
Supported until	Sep 2030	May 2029

iPhone 15 Pro Max full verdict →X100 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.