Shiny Oshawott Pokémon GO is a special version of the Water type Unova starter. Here's where to look if you want a Shiny Oshawott in Pokémon GO.
Unova Week will be a good chance to go Shiny hunting. From August 14 to August 21, Pokémon originally from Unova like Oshawott will be easier to find in the wild.
You'll find more Oshawott, but you'll still be contending with the normal Shiny rate of one in 450 encounters. Unlike Community Day, there are no boosts to Shiny Pokémon for this event.
Shiny Oshawott Pokémon GO: How to Catch
Shiny Pokémon don't appear on the map as Shiny. You'll have to engage each Oshawott you find. When you do find a Shiny, you'll get a sparkle and a marker by the Pokémon's name. This is helpful for Pokémon that have more subtle Shiny color palettes, like Oshawott.
A Shiny Oshawott has a very slight yellow shade on the lighter patches, and the blues are slightly darker. It's hard to even notice that it's Shiny.
When it fully evolves, it keeps that subtle Shiny coloration. A Shiny Samurott has pinkish shell armor, and the chest plate is yellow instead of blue.
In battle, Samurott is a decent Water type with a few tricks. It can learn the Bug type Megahorn, which lets it fight against Grass types that Samurott would normally struggle against.