MagSafe Charges 2x Slower Than Wired 20W USB-C Charger
Although Stern found that the MagSafe charger charged the iPhone 12 faster than a traditional 7.5W Qi wireless charger, it was still slower than plugging directly into a 20W charger. The 20W charger charged an empty iPhone to 50% in only 28 minutes, while the MagSafe took 1 hour.
The full video review covers other aspects of the new iPhone 12 and iPhone 12 Pro:
The review was also critical of the fact that the combined cost of the MagSafe charger and a 20W power adapter was $58 combined, and that the MagSafe charger's cable is less than a yard in length.