From the Disney parks, the blue R2-SHP (Droid Factory Line Look) looks like his R6 companion - but it's a cool colorway.  I can't remember where this Resistance droid was in the movie, but it looks super cool - and after hundreds of astromechs, that's almost more important.  Silver and black and some fake dirt cover the blue chassis with a glossy black eye and a lot of personality.  Do you need it?  No, but it's cool enough to buy if you see it at the right price.  Read on!