sex toy advice

Hi

Im looking for a vibrator to buy my wife and I dont know which one to buy her. Im not experienced in vibrators which ones should I buy her?

Ive seen this one
http://www.bigdaddysexshop.co.uk/vibrators-dildos/vibrators/6-smooth-vibrator-the-original/prod_29.html
Is it alittle boring or will she like it?

I like the look of this one
http://www.bigdaddysexshop.co.uk/vibrators-dildos/vibrators/g-spot-finder/prod_51.html
But it looks painful.

Can someone help me with selecting a gift for my wife to enjoy and hopefully create a spark in the bedroom.

I'll let you know the feedback on your help.

Thanks for your help in advance.