Bitcoin CoolWallet - It's realy Cool

CoolWallet is a hardware wallet that looks basically like your everyday credit card. The card is actually a very slim electronic device that generates and stores your private keys on it. It can connect to any device that uses NFC or Bluetooth technology. So, unlike TREZOR or LedgerWallet, CoolWallet can connect to your mobile phone and other “USBless” devices.

I actually got a complementary CoolWallet device to test out. This is one of the earliest versions ever made, so it has some glitches that I will address later on. But from first glance, CoolWallet is indeed cool. When you open up the box (which is nicely designed), you get the CoolWallet (which looks like a credit card), the charger and some other “utilities” (USB connector, a place to write down your seed, etc.).

The card itself feels like a regular credit card. It’s waterproof and has a display screen (24.6mm x 21.9mm) that acts as a layer of protection for showing you passwords and seeds, and requesting permission to send out funds. This is an important feature, since it means that no one can see sensitive information shown on the CoolWallet unless they are standing behind you or filming the screen in some way.