Since this model is no longer in production, you won't find it at traditional carriers. Your best bets are specialized electronics marketplaces:
For a device over a decade old, it still has features many modern phones lack: buy samsung galaxy s4 without contract
: A reliable platform for used tech where the 16GB model currently averages around $32 . Since this model is no longer in production,
: You can easily swap in a fresh battery if the original has degraded. buy samsung galaxy s4 without contract
: The most active market for the S4. You can find "Carrier Unlocked" or "Factory Unlocked" models starting as low as $22.99 to $35.00 .