Does the LabelWriter 4XL need ink or toner?

No. It prints thermally on DYMO label rolls, so there is no ink or toner to buy.

What label sizes can it print?

It handles labels up to 4 inches wide, including standard 4x6 shipping labels, plus smaller address and barcode labels.

No. It connects by USB only, so it needs to be plugged into a computer.

The 4XL prints much wider labels, up to 4 inches, while the 450 and 550 are limited to narrow address and file labels.

Yes. It works with DYMO software and common carrier and marketplace label formats, so you can print shipping labels directly.

DYMO designs it around its own label rolls, and owners report that third-party rolls often fit poorly or print unreliably.

At Rent Heron, for $15.00, 93% under what the other stores charge, as of our latest check.

6 stores we checked sell it, including Rent Heron, eBay, Whatnot, Mercari, Neobits.com.

$15.00at Rent HeronChecked 1 h ago

93% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when.

It checks today's price at every store, compares the alternatives and answers in about a minute.