Gadgetry confusion ... advice needed

Thank you to everyone for your support.  I did not really kill the laptop, just sent it to hospital for an extended stay and surgery !  It is back but I don't think I will play with it for a while (it does not belong to me).   I was speaking to a neighbour over the bins last week and she was wearing one of the fit things so I asked her all about it. I have had some good advice and she will set it up for me on her modern phone and I can go in and look at things now and then after these restrictions are eased.  I am quite amazed at what the thing records and how she can keep an eye on her health in general.   It does show her steps and heart rate, just what I wanted. Seems the older pedometers are not so popular and I would need a separate thing to check my heart rate. In the meantime I am doing what I can to improve my fitness, when the weather allows. I would like to have some official track of my progress I am really considering this idea. Thank you all for being such helpful ladies.  Anne