My backup is a Moto G5 CDMA/GSM that I bought new and run on Trac Fone. No issues, works well and super cheap to own. My main is a CDMA S8 that I bought new on Amazon about a year ago. it replaced a GSM S6 Active that I had for a few years. I switched from AT&T to Verizon due to coverage issues. The S8 is worlds better than the S6, and being 2 generations old is hundreds less. I would do this exact same thing again, buy a new older model.