I've been looking at getting Ds a smart watch for xmas, and I'm a bit confused 
. I've seen a few on Amazon around £40/50 which get good reviews, but I'm wondering if (a) the reviews are genuine? There's a similar 'tone' between the writing of the product description and the reviews, and (b) can a smart watch at £40 be any good?
Top brand items like an Apple watch are way out of budget, so it's either a cheap one of I'll have a rethink altogether.
Thanks