The features of QTUM (Quantum) are a combination of the goods of Bitcoin and Ethereum. The consensus algorithm is Proof of Stake.
QTUM implements Unspent Transaction Output (UTXO), a balance display mechanism first used in Bitcoin, and Ethereum-based smart contracts.
This "good" is called the "account abstract layer", which leaves no history and is impossible to tamper with, allowing Quantum to meet the high level of security required for business-to-business transactions.
Quantium is a virtual currency designed for business, and it has received high praise for its security and practicality, which are important in business.
The official wallet of Quantum is called Quantum Core, and it is available as a desktop wallet and a mobile wallet. Another feature of Quantum is the ability to access and use smart contracts, even from a smartphone or tablet.