First and foremost, Amazon takes a pretty decently-sized range of Android phones as trade-in, but it doesn’t take all of them. While it accepts devices from the major manufacturers like Samsung, LG, Motorola, and more, it’ll only take models from the last few years. If you’ve got a phone from over a decade ago, don’t get your hopes up.
Secondly, the precise trade-in value you get will depend on the condition, model, and year of the phone you trade-in, but generally speaking, don’t expect to break the bank here. You definitely won’t be getting the full value of your phone back in Amazon gift cards — expect to make between $10-20, maybe $30 if the phone is brand new. Additionally, just to clarify, you will not receive a physical Amazon gift card for your trade-in. Rather, you will receive Amazon store credit which can be put toward any Amazon purchase.