A portable toilet can be a sensible purchase long before it becomes an emergency purchase. For an adult who finds small camping seats awkward, the Ann Katy Upgrade XL Portable Toilet for Adults, Extra Large Camping Toilets is worth comparing for its larger format.

The title makes adult sizing the main selling point. I would start there rather than assume that extra large means the same thing across brands. Seat opening, working height, and the space needed around the unit all affect whether it feels practical in a tent or beside a vehicle.

Size Is Only Part of Comfort

A seat can look generous in a photo and still be uncomfortable if it is too low. It can also be difficult to use if the floor isn't level. Before buying, I would compare the actual assembled measurements with a seat height that works for you.

Adult camping format: The intended role described in the listing.
XL positioning: A reason to inspect exact dimensions rather than rely on the name.
Portable setup: Consider the packed space as well as the space in use.

The Waste Plan Comes First

I would confirm the required liners or collection arrangement for the exact version. That purchase needs to include enough compatible consumables for the trip, a secure place for filled bags or waste, and a lawful disposal point.

Privacy is another separate piece. A larger toilet won't help much if the only place to put it is visible from the next campsite. Measure your privacy shelter and allow room to stand, move, and manage the lid or liner without brushing against everything.

A Good Fit for the Right Setup

This is most interesting for car camping, a temporary household backup, or someone prioritizing a more comfortable adult seat. Backpackers will probably want a different approach entirely.

I would choose it after checking dimensions, assembly, cleaning instructions, and the waste system together. That gives the larger format a chance to be a practical improvement instead of simply a larger object to carry.