Does the wii fit plus help you loose weight and tone up?

I’m considering whether I should get the wii fit to help me loose about a stone roughly and tone up my stomach,thigh’s and hips etc. Or whether I should get something like p90x and buy some weights instead.

I’m 21, female, and I’m 65.3kg(10 stone 2) and 169cm(5 ft 6.5inches)