Had an ablation done and now my at home ekg is saying wide QRS

I don't know that the device is calibrated, but assuming it is, and that its verdict is reasonable and veridical (can be proven to be correct), you should run this past your cardiologist ASAP. Long QRS is a potential indicator of a dangerous condition. He/she should offer to conduct an ECG, and it will tell the tale. If it turns out to be unfounded, you will likely want to ditch the Kardia because you won't feel you can rely on it. On the other hand, if it turns out to have saved you a lot of grief by being accurately diagnostic, you can send the company a warm and fuzzy, not to mention enthusiastic, endorsement. 😀
https://biologyinsights.com/how-long-should-a-qrs-interval-be-and-what-it-indicates/