The 256 GB tier of the Galaxy S25 Ultra on XFINITY Mobile. Starting from $8.88/mo.

The 256 GB variant of the Galaxy S25 Ultra starts at $8.88/mo on XFINITY Mobile via Installments over 36 months. Outright purchase pricing varies; see XFINITY Mobile for the full quote.
256 GB is comfortable for most users — about 30,000 photos, ~50 high-quality apps with media, plus several hours of 4K video. Heavy ProRes / RAW shooters and offline-music collectors should consider 512 GB or higher; Galaxy S25 Ultra doesn't expand via SD card.
The 512 GB tier on XFINITY Mobile typically runs a few dollars more per month than 256 GB on the same plan. Check the storage-tier table above for the live monthly delta.
No — Galaxy S25 Ultra doesn't support expandable storage, and Apple/Samsung don't offer post-purchase storage upgrades. Pick the tier that fits your two-year plan.
XFINITY Mobile offers trade-in toward new Galaxy S25 Ultra purchases — credit varies by your old phone's condition and any active promo. Higher storage tiers typically receive proportionally larger credits.