What hand or hands are unbeatable in holdem poker?

Question

as only one deck is used if a person had 4 aces it would not be possible to get a royal flush. so 4 aces is unbeatable?? are there other unbeatable hands?

Answer 1

The Royal Flush is just a fancy name for the highest possible straight flush.  It is not a separate hand, really.  The straight flush beats four of a kind, whether it is aces or twos.  So, 2-3-4-5-6 of clubs beats all four aces, and doesn't require an ace.  

The unbeatable hand in any variation of poker is the Ace High Straight Flush (Royal Flush) unless wild cards are used, in which case Five of a Kind becomes a possibility, which beats a Straight Flush.  I've never sat in on a game of Hold'em where wild cards are used, in fact they are hardly ever used these days, and Hold'em is what is most often played, so Five of a Kind should rarely come up in your regular poker game.

Answer 2

royal flush is the only one

Answer 3

THE ROYAL FLUSH is the only unbeatable in Hold 'Em Poker.