Yes, I’ve had one for 3 years. Medtronic.
An implantable loop recorder continuously records information about your electrical activity, similar to an ECG. However, an implantable loop recorder can record heart rhythm for up to 3 years. It is continuously looping its memory and has automatic triggers to store recordings.
I have a phone type box on my bedside table that sends back the info on a nightly basis to my EP.