Hi, following a three month period where my A/Fib had appeared to settle down ( marvellous) a couple of times this week I have had a couple of Slight episode of it becoming a bit erratic, however this morning its excelling itself, all over the place. Used the app on my phone to take my pulse and it was jumping from 107 to 39 and variables in between. Now settled slightly, but still not happy. Thinking of getting a kardia and wondered if there were various models and if so which would be the best. Reading posts on here it would seem that users do think they are worth having. Would be grateful of any advice please. I was just staring to feel fairly normal again damn it!