In general, a wall charger charges devices faster than a USB charger. Here are some key points to consider:
Wall Charger
Power Output: Typically provides higher wattage (measured in watts, W) compared to USB ports, allowing for quicker charging.
Wireless Fast Charging Technology: Many wall chargers support fast charging standards (like Quick Charge or USB Power Delivery), which can significantly reduce charging time.
USB Charger
Power Output: Standard USB ports (like USB 2.0) typically provide lower power (around 5W), while USB 3.0 ports offer slightly more (up to 15W).
Limited Speed: Charging speed can be slower, especially if using a computer USB port, which usually offers lower wattage.
For faster charging, a wall charger is generally the better option, especially if it supports fast charging technologies. However, the actual charging speed will also depend on the device being charged and the specific charger used.