The best vibrator I've ever had was on Motorola phones. Not just a single model, all Motorola phones had excellent vibrators. So much so that when i read on some forum back in early noughties a post about how rubbish phone vibratots were, I could not understand what he was on about - until I got a new phone that was a Motorola. To this day, I have not found a match. I recommend your girlfriend get an old V50 or similar.