Characteristics CoolWallet S/DUO/Pro
CoolWallet releases only two wallets - S and Pro. DUO is nothing more than a marketing gimmick, but more on that below.
Both wallets are made in the form factor of credit cards (and weigh only 6 grams). They do not have a user interface (except for the power button) - to interact with the wallet, you need a smartphone with the CoolWallet application, which connects to the wallet using BlueTooth. The connection is encrypted, so this does not create a serious vulnerability.
CoolWallet S supports Bitcoin, Ethereum, Litecoin, XRP, Bitcoin Cash, Horizen, ICX, major stablecoins and ERC20 tokens. In addition, it provides access to trading and DeFi services through Wallet Connect.
CoolWallet Pro, in addition to all the functions of the junior model, supports Polkadot (DOT), Cosmos (ATOM), Tron (TRX), Kusama (KSM), BNB and BEP20 and TRC-20 tokens, including stablecoin tokens. In addition, NFT support, connection to NFT marketplaces and access to staking in the Polkadot, Tron and Cosmos blockchains are provided. Well, the security element that protects private keys, the Pro complies with the EAL 6+ standard, while the S has EAL 5+.
CoolWallet DUO, on the other hand, is just packages of two wallets with some discount. DUO is two CoolWallet S, DUO Plus is CoolWallet S and CoolWallet Pro.