+ QR code signing, faster and easier
+ Keyboard 🙌, if you have ever tried importing a seed or used a passphrase on the Mk4, you will really appreciate it. The keys are small and it will feel strange in the beginning, but you quickly get use to it
+ Most fully featured hardware wallet, with never ending options
+ Standard size batteries that can be removed and easily replaced
+ Large screen, much easier to read
Neutral Coldcard Q
~ Larger than MK4, makes storage more difficult, won't fit in a faraday bag
~ Firmware (1.1.0Q) a little buggy. It crashed the first time I tried importing a seed. QR reader also remained on once with red light flashing, even though I had exited the function
~ Firmware (1.1.0Q) not fully updated from Mk4, e.g. when exporting the wallet to Sparrow, it seems only option is to export the json to an SD card (has not been updated), only once you proceed does it mention the option to use QR. All small thinks that will for sure be fixed with time
~ Found the keyboard scramble confusing 😅🙈 and disabled it. Maybe if it was at the bottom of the screen and the onscreen keypad looked like the buttons (a border around each number), it would be less confusing
~ Would be nice if the QR reader gave feedback while scanning
Negative Coldcard Q
- The build quality is decent and similar to Mk4, but it feels different. The clear case on the front is beautiful, one the back is looks a bit cheap. On the sides, where the case comes together there are some rough edges. You also have these rough edges on some Mk models but due to the form factor and being smaller, it is not noticeable. On the Q it is, and due to the size and how I held it, it actually bothered me and I had to smooth the edge with a razor blade.
Overall
The Mk4 is my favorite, but the Q is right there. The Mk4 is great for cold storage, locked away and only pulled out for regular audits. The Q is similar BUT it can also be a "daily driver". Large screen, QR signing, and keyboard, make it great for regular usage.
