Here is a quick tip on how to play Pokemon Go without Wifi
The Pokemon Go seriously drains your phone’s battery power and since your battery power is crucial to keep playing the game, you need to conserve it wisely. So to play the Pokemon without WiFi all you need to do is to download the maps to your phone. This way you won’t need WiFi to play the game.
You’ll save battery power and also cut down on your data usage by playing the game offline.