My s20 5g purchased from samsung is one month out of warranty and has a bad antenna/radio so basically, no mobile data, tested the sim cards with other phones and factory reset.

I called Samsung and my only option is the $120 mail-in return, and if they can't fix it, they either send me a replacement, which isn't available as its not being sold new anymore or give me a credit anyway. I just want an exact replacement, not a credit or S21 trade in.

I see the CPO used s20 5g is $650 but with a $50 accessory credit, plus $500 trade in credit for a galaxy s20, so basically I get a CPO s20 with an extra year of warranty for $100.

Is there a downside to CPO phones if they're direct from samsung? I honestly trust CPO more than my previous bad experiences sending phones for repair to the Dallas Samsung repair contractor for service. I've had them send phones back in worse condition despite the repair, plus you have to mail it in and wait two weeks etc.

Is water resistance and battery life a guarantee on the CPO phones? It seems like if they're selling it as CPO they should test for full functionality as new but I couldn't find any specifics. Also I'm definitely getting the Samsung+ care extra warranty, this is the first phone I've had the radio completely crap out

Was checking out the Samsun Store and saw they offer Certified Pre-Owned. They come with a year warranty and says they have been completely reassembled and tested. Samsung doesn't specify if they come with new batteries or if they maintain their IP ratings. Usually refurbished phones lose their IP ratings after being reassembled.

Checked the warranty, no mention of exclusions for water damage related to refurbished phones with IP ratings and batteries are covered if they drop below 80% health in the first year. This sounds like new batteries are put in and the IP rating is restored after re-assembly.

Anyone have any experience with Samsung's Certified Pre-Owned? Are they worth the premium versus other refurbished phones? If the IP ratings are maintained and comes with new OEM batteries, seems like it would be worth it.