The computer has to be at least as fast as the card, not the other way around, so you could put a Class 2 card into that device. (I'd stick with SanDisk - even though they cost a little more, you get a lot more, like online tech help.) Since the phone only goes to 1080p, you don't need a U3 (for that phone, but you may want one for your next phone if it's going to have 4k video), a U1 is fast enough.
(A 128GB Class 10 Ultra [or U1 - same thing as Class 10, different scales] is only about $40 at Amazon. Samsung is the same price, but SanDisk a) is the inventor of the technology, so they might make better chips, and b) has MUCH better customer support.)