Community Moderators ensure that conversations are friendly, factual, and on-topic. We're here to answer questions, escalate bugs, and make sure your voice is heard by the larger Fitbit team. Learn more
Hi @VMI77nlp, welcome on board! It's great to see a new face around. I'm sorry for the delay in my response.
Thanks for your question. The Aria 2 measures body mass using bioimpedance analysis, which sends a small electric signal through the body. For this reason, we don't recommend to use it if you have an implanted medical device such as a pacemaker. Please consult with your doctor if you have any questions about using this device. More details can be found in the Aria 2 User Manual.
Hope to see you around.
Best Answer