Hello @Dadslost and welcome to the Community. I’m sorry, but the Fitbit app for Windows 10 was deactivated last month. Even if it were still active, you couldn’t set up a Charge 5 with Windows 10. Your wife’s phone is too old to support the minimum iOS. You are technically out of luck on this matter. Sorry.
I think you will find this article from 9to5mac helpful.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.
Best AnswerNo, the Fitbit app for Windows 10 has been completely deactivated. And for clarification purposes, the Charge 5 isn’t compatible with the dongle. There’s no way it can help you.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.
Best Answer