Share your experience!
the vibrator on my sp is very gentle. i can hardly feel it when a call or text comes in. is there any way i can improve the strength of it? thanks.
It's not possible to change the vibration strength for incoming notifications such as calls and text messages as standard in Xperia SP:
I suggest that you compare the vibration towards another Xperia SP to check that the vibration works as it should.

I agree with the OP, the vibration is too low on the SP. I tested on a Z and is much more intense. It would be good to have a setting to adjust it. Hope it make it to the next update.
I've recently bought an Xperia SP, and I'm also really disappointed with the vibration strength. It's so gentle that it's very nearly pointless having it enabled.
Me too, i Have a Xperia SP an dthe vibration is too low. I had to use it for morning alarm and i have to put thephone on someting to improve teh sound like an iron dish.
is there any solution ?
It could be a defective unit,have you checked other SP's to see the difference?