Coinkite Coldcard Mk3

Coinkite Coldcard is BIP39 based, meaning you can back up the secret words on paper and have many sub-accounts and unlimited independent payment addresses.

It knows how to understand transactions, so you can see what you are approving.

But it's different!
NO special software required. It looks like a hard drive, so you can drag and drop files onto it. NO companion "app" on your computer!

It's affordable! Simple packaging, plain design, no fancy boxes, no redundant cables.

It's ultra-secure! A real crypto-security chip. Your private key is stored in a dedicated security chip, not in the main micro's flash.

Easy backup! MicroSD card slot for backup and data storage. This allows for true offline signing by transferring unsigned/signed transactions via sneakernet.

Open Source Software Design runs on Micropython and you can modify it.

Other features:
The full-size numeric keypad allows for easy and fast PIN entry.

Larger 128x64 OLED screen.