Kamor® Screen Protector for Samsung Galaxy S4 SIV I9500 - Crystal Clear (Invisible) edition - Highest Quality Japanese PET Material (3 Pack) - £2.99 @ Sold by YoSpace.U and Fulfilled by Amazon
I have used this and its the best screen protector i have used. Very smooth and easy to navigate when put on. It has a dust remover and applicator that makes sure the protector is put on immaculately. Well made high quality product.