Is it shady for my fiancé to have two cell phones?

So my fiancé had a Samsung Note (older version) that had a lot of issues. For his bday last year I bought him the newest iPhone. I thought he would do away with his Samsung since it was no longer serviced but he continued to carry it around. I asked him several weeks later why and he said because he had a lot of info and apps he used. It's been almost a year and he is still carrying it. To work, running errands, the bathroom, everywhere. He had everything synced over to his iPhone so I've wondered why he still carries it. Now, he just moved over to my phone plan about a month ago. When I paid our bill last week I was curious and went through his call logs. I found he called a Tracfone customer care line (the ATT log identified it as Tracfone). I called it myself to see what it was and it was to reload a tracfone account. So now I'm really questioning why he is carrying his old phone, and if he does have it hooked up to service, why would he not tell me? As I said, we just synced our phone plan so I can only see logs for the last month. I don't know how often he makes calls to Tracfone. I want to confront him but I want more evidence so that he can't try and lie his way out of it. Am I being a crazy fiancé/girlfriend or is this suspicious to you? We've been together 2 years, we live together and i had no suspicion of cheating but now I really wonder. What are your thoughts?

No

I have lost data several times moving it over. It is a valid reason.
I also think you are a nut case and maybe you should lay your phone out and let him see all that you do.

Suspect people are usually guilty.

I have 3 phones. Why, cause I have valid info that did not transfer over on the two phones I had before. The info is not a call log or a phone number. It is the log of incoming calls and messages left for me.

If you are so suspect of him, why don't you just call in sick to work and follow him, or break up.
Why does it have to be a sting operation?

Cause iPhones suck lol and he missed his samsung

Yes

I don't think he's cheating if thats what you're suspecting.
I think he's selling drugs because people don't just have a tracfone to cheat on their partner. And you should have more trust in him. He wouldn't cheat on you, he would be an idiot. Have some self respect. You're beautiful. And he knows that. Plus if he were cheating on you don't you think he could just use like a hidden app or something. I don't know. I don't know what cheaters do. I'm just spit-balling ideas, but I could be right.