RX-2 is a talking bathroom scale that constantly makes fun of Garfield's weight, causing him to either destroy it or threaten to do so. Its prototype appeared on September 22, 1984, as well as in Garfield's Thanksgiving and in Garfield and Friends. RX-2 is also known to compliment Garfield if it is threatened.
In most strips, the running gag is that it often makes fun of Garfield's weight. On the other hand, it seems to be friendly with Garfield when the latter has stayed the same weight for ages.
- It has appeared 84 times, the equal 20th most.
- It is also known for making comments that are irrelevant to Garfield's weight.
- Garfield once squashed a spider that was attempting to use the scale, damaging it in the process.
- When it once told Jon that his weight was none of its business, Jon accused Garfield of fiddling with it, only to get the same response from Garfield.