I use a Eufy Smart Scale that measures body fat percentage and other values with a nice app that maintains history. https://www.amazon.com/dp/B07N1CLF9M/ref=cm_sw_r_cp_apa_i_JX3.EbY21DMCW

Just don't get on it every day. Use it once a week and just look at the overall trend to see if you are regaining weight. Scares are good, but you have to be disciplined with them.