The main differences between the 30W Dual-Port Wall Charger and higher-wattage travel chargers are total power output, size, and the number and type of ports.

The 30W Dual-Port Wall Charger delivers up to 18W on its USB-C Power Delivery (PD) port and up to 12W on its USB-A port, for a combined 30W. That is a great fit for smartphones and tablets in a compact, travel-friendly design.

Higher-wattage travel chargers, for example 75W and above, provide more total power, usually with higher-output USB-C ports and sometimes additional ports. Those are the better choice if you need to charge a laptop or charge several devices at full speed at once. If your main devices are phones and tablets, the 30W is usually all you need.