Find X7 Ultra vs 15

Phone 1

Phone 2

Winner

Xiaomi 15

Lifespan decides this one: the 15 is supported until Mar 2030 at $16.82 per month of safe use, while the Find X7 Ultra runs out in Jan 2029 ($23.32/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Find X7 Ultra 64 · 15 67 — methodology

The lifespan decider

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

Oppo Find X7 Ultra $720

Buy with care$23.32/mo

2024◆ Buy-by Jan 20272029

Xiaomi 15 $750

Safe to buy$16.82/mo

2025◆ Buy-by Mar 20282030

Category by category

Display

Find X7 Ultra 9015 90

Both displays are effectively the same class.

Performance

Find X7 Ultra 9215 98

The 15's Snapdragon 8 Elite is simply the faster chip.

Camera

Find X7 Ultra 9115 79

The Find X7 Ultra has the stronger camera system (4 real rear lenses vs 3).

Battery

Find X7 Ultra 8015 85

5,240mAh vs 5,000mAh — the 15 lasts longer between charges.

Software longevity

Find X7 Ultra 3715 53

The 15 is supported until Mar 2030 — 14 months longer than the Find X7 Ultra.

Value

Find X7 Ultra 6415 67

Pound for pound, these two are equally good deals.

Full spec table

Spec	Find X7 Ultra	15
Price (street)	$720	$750
Display	6.82-inch LTPO AMOLED, 3168x1440, 120Hz	6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+
Chipset	Qualcomm Snapdragon 8 Gen 3	Snapdragon 8 Elite
RAM	12GB/16GB	12GB
Storage	256GB/512GB	256GB/512GB
Battery	5,000 mAh	5,240 mAh
Charging	100W wired, 50W wireless	90W wired, 50W wireless
Rear cameras	50MP main, 50MP ultra-wide, 50MP telephoto 3x periscope, 50MP telephoto 6x periscope	50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)
Dimensions	164.3 × 76.2 × 9.5 mm	152.3 × 71.2 × 8.08 mm
Weight	221 g	191 g
Water resistance	IP68	IP68
Supported until	Jan 2029	Mar 2030

Find X7 Ultra full verdict →15 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.