The CoolWallet S is a hardware crypto currency mobile wallet that features a 24.6×21.9 mm E Ink display. The CoolWallet S supports Bitcoin, Litecoin, Ethereum, Ripple, Bitcoin Cash, and ERC20 Tokens.
The CoolWallet S is now shipping for $99. The company behind it (CoolBitX) raised $13 million in September 2018.