Galaxy S4 Mini --- Is there a yellow version?
But... You could create one by putting a nice thin yellow protective cover over the white model:
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I use one of these covers on my S4 Mini, and I luv it. Phone is black, cover is sort of dark charcole because I fine-sanded it smooth but still more gripable than naked device. Very inexpensive too:
Ultra Thin 0 3mm Clear Matte Case Cover Skin for Samsung Galaxy S4 IV I9500 9505 | eBay