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.