Shopping for a 10-inch 2 in 1

[hockeysticks]

I am looking for a 10-inch 2 in 1 as an extra to my 15-inch Intel Core i5-5200U laptop. I would like Windows 10 and will use it mainly for some financial programs, surfing, watching videos etc. I need to multitask and want speed - however - I would like to get something under $500, preferably under $400. Refurbished is fine, I am just not sure whether I should simply buy one one with an Atom processor - if so which kind - or try and find something better for the money I want to spend. I seems that Celerons and Pentiums can be had for under $500.

Any suggestions? I like speed, efficiency, and multi-tasking but don't play games or need special graphics etc...

[patio]

What exactly is a 10 inch 2 in one ? ?

[Salmon Trout]

A small notebook where the screen part can be detached and used as a tablet, I think.

[Computer_Commando]

[Geek-9pm]

Here is a listing from Next Tag.
http://www.nextag.com/shopping/products?search=Best-2-In-1-Tablets
Beware that many are Not Windows machines and do not run windows apps/