When was the Ledger Blue hardware wallet announced?

The most important facts in brief

• the Ledger Blue embeds a color display and a large touchscreen in an anti-scratch glass, encased in a robust case
• a hardware wallet with its own battery
• the firmware integrity is guaranteed by cryptographic certification
• the Blue is based on an advanced operating system that makes it easy to install applications accessible via a dashboard.
• supports Bluetooth 4.1, USB 2.0 full speed and NFC interface