[ben1040]

They're not wrong on the poor UX. I have the Feitan BLE key, along with about three Yubico U2F keys (I'm paranoid about losing them).

You'd think you could wirelessly use the Bluetooth key with a laptop, but you can't. You need to connect a MicroUSB cord to the bottom of the key, plug it into your computer, and use it like you would a USB key.

While I could pair the key with my iPad and my Pixel phone, I couldn't with my Mac. So keeping the BLE key on my keychain rather than a USB version is kind of pointless, because I would need a cord lying around.

I keep the BLE key in a desk drawer for the purpose of authing my mobile devices as it's pretty much the only way to auth on iOS, and once you've used the key with Google's Smart Lock iOS app to add your Google account you don't need the key again. I don't take it anywhere with me.

[arthurfm]

> I keep the BLE key in a desk drawer for the purpose of authing my mobile devices as it's pretty much the only way to auth on iOS

Krypton Authenticator [1] is another option for iOS. It can turn an iPhone (or Android smartphone) into virtual U2F key.

[1] https://krypt.co/