Just use Krux with Sparrow once... You can test drive with Krux app, without spending a single sat.
https://github.com/odudex/krux_binaries/tree/main/Android
It's simple and objective, big QR codes and touchscreen.
Later, for a few sats you can buy an Amigo(ready to use), just flash the firmware and have the same touch UX, on a dedicated device without OS and wifi/BLE.