Is Boston bigger than NYC?

Excuse me, but I'm curious about something. Could you possibly clarify for me the relative sizes of Boston and New York City? I've heard differing opinions on whether Boston is actually larger than NYC, and I'm hoping to get a definitive answer. I understand that both cities are major metropolises with vibrant cultures and economies, but I'm specifically interested in their physical sizes. So, could you please enlighten me on whether Boston is indeed bigger than NYC?