If your phone's keyboard is too small, consider investing in one of the best Bluetooth keyboards. These keyboards sync up to your iPhone or Android ... that holds the portable keyboard doubles ...

Michael Murtaugh/NYT Wirecutter If you want a super portable Bluetooth keyboard: The Logitech Keys-to-Go 2 is the best option if you want a superthin and really light keyboard to use with a tablet ...

Unfortunately, the version he preferred to use did not have either a Bluetooth or a USB interface, so he built up this Palm keyboard adapter. The portable keyboards have a serial interface and ...