Why Do Some Phones Charge Faster Than Others?

Some phones charge faster because they can take more power at once, like a big cup that fills up quicker than a small one. Imagine your phone is a cup of water. If the charger is like a hose filling it up, some cups are bigger and fill faster, that's how fast charging works! Just like you can drink from a bigger cup faster, your phone powers up quicker if it can take more power at once.