The vendors like you to buy a new phone every year so that they can get more money from you.

When they advertise that “only our latest product has smart thingy, or picture erase, or circle to search”, they’re really telling you that they are trying to find a reason for you to throw perfectly good hardware away so that you can spend more money.

If the software lasts that long, and it’s doing what you need, there’s no reason you have to buy a new phone each year.

Every time you keep your phone a bit longer instead of buying a new one, you’re reducing the waste that goes to landfill (let’s be honest, most people throw their obsolete electronics literally in the trash rather than direct them to approved recycling and disposal).