X Fold3 Pro vs 15 Ultra

Phone 1

Phone 2

Winner

Xiaomi 15 Ultra

Lifespan decides this one: the 15 Ultra is supported until Mar 2030 at $30.40 per month of safe use, while the X Fold3 Pro runs out in Apr 2028 ($58.74/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: X Fold3 Pro 53 · 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.

Vivo X Fold3 Pro $1300

Buy with care$58.74/mo

2024◆ Buy-by Apr 20262028

Xiaomi 15 Ultra $1350

Safe to buy$30.40/mo

2025◆ Buy-by Mar 20282030

Category by category

Display

X Fold3 Pro 8015 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

X Fold3 Pro 9215 Ultra 98

The 15 Ultra's Qualcomm Snapdragon 8 Elite (3nm) is simply the faster chip.

Camera

X Fold3 Pro 7915 Ultra 96

The 15 Ultra has the stronger camera system (4 real rear lenses vs 3).

Battery

X Fold3 Pro 9415 Ultra 88

5,700mAh vs 5,410mAh — the X Fold3 Pro lasts longer between charges.

Software longevity

X Fold3 Pro 2615 Ultra 53

The 15 Ultra is supported until Mar 2030 — 22 months longer than the X Fold3 Pro.

Value

X Fold3 Pro 5315 Ultra 65

Overall value goes to the 15 Ultra at $30.40 per month of safe use.

Full spec table

Spec	X Fold3 Pro	15 Ultra
Price (street)	$1300	$1350
Display	8.03-inch foldable LTPO AMOLED, 2480x2200, 120Hz; 6.53-inch cover AMOLED, 2748x1172, 120Hz	6.73-inch 2K (1440×3200) LTPO AMOLED, 1–120Hz, up to 3200 nits peak
Chipset	Qualcomm Snapdragon 8 Gen 3	Qualcomm Snapdragon 8 Elite (3nm)
RAM	12GB/16GB	16GB
Storage	256GB/512GB/1TB	512GB/1TB
Battery	5,700 mAh	5,410 mAh
Charging	100W wired, 50W wireless	90W wired, 80W wireless
Rear cameras	50MP main, 50MP ultra-wide, 64MP telephoto 3x periscope	50MP main, 50MP ultra-wide, 50MP telephoto (70mm floating), 200MP periscope telephoto
Dimensions	unfolded 159.9 × 142.4 × 5.2 mm, folded 159.9 × 72.6 × 11.2 mm	161.3 × 75.3 × 9.35 mm
Weight	236 g	226 g
Water resistance	IPX8	IP68
Supported until	Apr 2028	Mar 2030

X Fold3 Pro 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.