The difference is: charging speed is different, the price is different, the quality is different, the principle is different, the main body is different;
Charging speed is different: when the smart phone is fast charging, the charging speed is often very fast, basically every 30 minutes can charge 50%-70% of the electricity, and the battery can be fully charged soon, but the slow charging speed is very slow, 80% or full charge takes 2-3 hours;
The price is different: The fast charger on the market is slightly more expensive than the slow charger.