https://www.gunsamerica.com/digest/t...ket-this-2022/

"The LS9 has four overlapping methods of authentication, and will unlock if one of them is activated. It has a fingerprint reader on the trigger face, an RFID token reader, a PIN pad in the grip and Bluetooth capability to interact with a phone using an app. The Sentry uses an RFID reader tied to a ring the user must wear."

Sounds great. My I-phone fingerprint reader often failed. The bluetooth credit card reader I use frequently has communication issues.

And I don't want to remember to charge my gun or change the batteries.