Find X8 Ultra vs 15
It depends
Too close to call outright
These two are within 2 points overall — it genuinely depends on price on the day. The Find X8 Ultra edges both longevity and performance, so prefer it when prices are close.
Value Score: Find X8 Ultra 69 · 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.
Category by category
The 15's screen is the better one — 6.36-inch crystalres amoled, 2670×1200 (460 ppi), 1–120hz ltpo, up to 3200 nits peak, dolby vision/hdr10+.
Performance is a wash — same chip tier.
The Find X8 Ultra has the stronger camera system (4 real rear lenses vs 3).
6,100mAh vs 5,240mAh — the Find X8 Ultra lasts longer between charges.
The Find X8 Ultra is supported until Apr 2031 — 13 months longer than the 15.
Pound for pound, these two are equally good deals.
Full spec table
| Spec | Find X8 Ultra | 15 |
|---|---|---|
| Price (street) | $1050 | $750 |
| Display | 6.82-inch LTPO AMOLED, 2772x1272, 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 Elite | Snapdragon 8 Elite |
| RAM | 12GB/16GB | 12GB |
| Storage | 256GB/512GB/1TB | 256GB/512GB |
| Battery | 6,100 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 | 163.1 × 76.8 × 8.8 mm | 152.3 × 71.2 × 8.08 mm |
| Weight | 226 g | 191 g |
| Water resistance | IP68/IP69 | IP68 |
| Supported until | Apr 2031 | Mar 2030 |
Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.