Fitbit bundle 3 metal adjustable bands and one regular fitbitt working

I had the Fitbit that did my blood pressure as well as heartbeat. My significant other accidentally broke it and replaced it with the wrong model. I used the lregular one he got me for about a week and bought a Iwatch. Comes wirh 3 chargers as well. I do not knoww how to reprogram it to a new phone but I will assist you with any info you need after you have it.