Looks like a calculator I had many years ago. I like that coldcard has normal batteries that you can find anywhere and replace them. I do not like sealed units that have special batteries which you would need to either break the sealed unit or send it back to the company to replace batteries. These batteries they are using will always be available and I know I can leave my hardware wallet in storage for 20 years and I will find some of these batteries if the batteries have died. NFC communication is my biggest worry I am not a fan of NFC I think it makes devices less secure and if someone gets into your house or where you are storing your hardware wallet they might not even need to physically touch it and could wave a another NFC communication device to interact with the wallet. I wish this was optional I do not even have NFC on my phone because I do not like the tech. I like that we have dual sd cards but what would be the use of having 2 sd cards in the device at the same time?