It's true that you should be disconnected when you're practising Yoga, but to accomplish a perfect session, you will need a perfect master, and this new SmartMat will be a perfect one for you.
The SmartMat connect to you Android or iOS device via Bluetooth to bring you informations through a dedicated App, the Mat can track your positioning and makes real-time suggestions so you can make correct moves. It can make measures you hand and feet positions and limitations, then corrects your poses via a visual help on the app, and if you don't want to be distracted, you can turn on an audio option.
The SmartMat is on Indiegogo,by supporting it, you can get it for $247, otherwise, you can pre-order it for $347. The SmartMat has already raised a huge contribution of $182,000 !