Slowpoke is a pink Pokémon that resembles a cross between a salamander and a hippopotamus. It has vacant eyes that never seem focused, curled ears, and a rounded, tan muzzle. It has four legs, each of which ends in a single white claw. Its long, tapering tail has a white tip. This tail drips a sweet, sappy substance that is attractive to many species of fish. Slowpoke uses the tail as a fishing lure. The tail often breaks off, but it will grow back. Slowpoke tails are considered a delicacy and commonly used as a cooking ingredient: in Alola, they are often dried and used in home-cooked stews, while in Galar, they are smoked and packaged as a curry ingredient. Slowpoke is also known to dive underwater to hunt, but is often itself caught instead.
Slowpoke has a notoriously dim intellect and often forgets what it was doing. It takes a long time to respond to outside stimuli. For example, it can take up to five seconds to process pain and can take an entire day to notice when its tail has been bitten. Slowpoke is commonly found at the water's edge. In some places, it is believed that Slowpoke's yawn causes rain. This Pokémon is worshiped in those areas. Its vacant expression is said to help some people relax, whilst causing irritation to others. It is posited that those who lead hectic lives are most likely to become relaxed.
Galarian Slowpoke's body is a slightly different shade of pink, and it has gained yellow colorations on its forehead and tail. This tail is always down and said to have a spicy taste. Much like its Kantonian counterpart, Galarian Slowpoke are known to relax on seashores and riverbanks without a care in the world. However, sometimes it will get a very sharp look in its eyes as if it is about to think of something tremendous, although it will quickly forget and return to its normal expression afterward. It is believed that this behavior, along with the spicy taste of its tail, is a result of Galarica particles built up from its diet of native Galarica seeds affecting its brain and body. This diet also affects Slowpoke's two different evolutions, including the Shellder that attaches to it, which is induced by either the Galarica Cuff or the Galarica Wreath.
In A Crowning Achievement, multiple Slowpoke were trying to reach a King's Rock to evolve into Slowking in order to help find a better habitat for the group. In this episode, Alice Telesu's Slowpoke, nicknamed Arthur, evolved into a Slowking when its head was bitten by a Shellder while it was wearing the King's Rock.
Slowpoke, the Dopey Pokémon. A Water and Psychic type. Slowpoke's tail often falls off, but it doesn't hurt, and a new one grows quickly, so the Slowpoke doesn't seem to mind. It takes a little time for them to feel pain.
Slowpoke, Galarian Form. The Dopey Pokémon. A Psychic type. This form of Slowpoke lives in the Galarregion. Their facial expressions are normally spacey, but sometimes, they appear focused. Because they eat Galarica seeds from the Galar region, their tails have a spicy flavor.
Giovanni stole Slowpoke from Kurt prior to Find Slowpoke!! in order to profit from its tail as it is worth a lot of money. Kurt was able to retrieve the Slowpoke from Giovanni before Giovanni was able to get its tail.
The Japanese and international versions of Pokémon Silver have different sprites for Slowpoke, with the Japanese versions having a fatter and striped belly similar to that which Slowbro and Slowking sport. It is unknown why this was changed. However, its striped underside is still partially visible in all of its Gold and Crystal sprites. This striped belly does not appear to be a true error, as it has been seen in artwork by Ken Sugimori, though it is from Generation I.
Like Mantyke, Slowpoke evolves when another Pokémon is attached to it; however, this was only seen in the anime. Proximity-based evolution such as requiring Mantyke and Remoraid to be in the same party were not introduced until Generation IV.
Slowpoke is the only Pokémon whose multiple evolutions have different total EV yields: Slowbro has an EV yield of 2, while Slowking has an EV yield of 3.
Despite numerous Pokédex entries stating its lack of response to a bite on its tail, in Pokémon Snap it is shown to quickly react to Shellder's bite. This may be due to Shellder's venom stimulating a quicker response, or simply an error or game mechanic to speed the process along.
The Pokémon Company posted a Slowpoke-themed reggae music video onto their Japanese channel titled どないやねん ヤドン (What's Going on, Yadon?). The song was later dubbed and posted to the English-language channel under the title of Slowpoke Song.
Though the species has appeared repeatedly, no Slowpoke has ever been seen using an attack in the anime.