: Use retailers like Best Buy or manufacturer sites to get instant credit for your old device.
: "Flanker" brands like Total Wireless or Mint Mobile often have lower total costs of ownership than major carriers, even if the phone itself isn't $0. cheapest place to buy new cell phones
If you are willing to commit to a service plan, carriers often offer phones for "free" or at a steep discount through monthly bill credits: : Use retailers like Best Buy or manufacturer