What's the difference between MagSafe and Qi2 wireless charging?

MagSafe is Apple's magnetic charging standard, while Qi2 is the open industry standard that adopted the same magnetic alignment and (in its newest revision) higher wattages up to 25W. In practice, most current 'MagSafe-compatible' chargers are Qi2-certified, and reviewers note they behave nearly identically on recent iPhones. Android phones that support Qi2 can also use them, though magnetic accessories may be needed.