update October 17th 2020. No watchband needed with trade-in. I sent my watch in with no band, no charger, nothing but bubble wrap. My phone was in good shape and I just received my confirmation email that, unlike the 1st email that said they received my trade in, said "We’re happy to inform you that your Trade-In was successful and your device met all of the eligibility requirements. We hope you’re enjoying your new Galaxy Watch3 (45MM), Mystic Black (LTE). No further action is needed at this point."
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