They're pretty similar. Goldbit shows up a little more on me, and it has a hint of gold that Deckchair doesn't. Deckchair is also a tad more frosty. Unless you're obsessive (like me), you don't need it.
On me they don't look the same at all so it's hard to say....Goldbit is champagne colored and Deckchair is more peach so for me it's def. worth it to have both.