Token standard 721 & 1155

ERC721	ERC1155
Support only Non-Fungibles	Support either A) Fungibles & Non-Fungibles or B) Semi-fungible tokens (transmute fungibles <-> non-fungibles)
transfer one token at a time	batch transfer multiple token in a single TX
each collection requires a new smart contract	single smart contract supports multiple collections
metadata supports 1 language at a time	metadata stores multiple languages
static metadata & must be on chain	metadata can be stored in off-chain URI