Want to try windows mobile (lumia) - move way from android

Hi all,
Been using android for 5/6 years now.
Just having a taste of a windows tablet, I want to dip my foot into windows mobile, potential move away from android. :crazy:

With android, I usually always have a the Samsung flagship model, currently have a Samsung Galaxy S5, but I am getting fed up with it’s sluggish behaviour and having to factory reset it to get it back from hanging around a lot.

I want to try a Lumia phone before I move over to windows.

Can anyone suggest a model Lumia to buy to try out for a bit. I don’t want to pay

You could take a look at Lumia 635 or 640