Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Why you can trust T3 Our expert reviewers spend hours testing and comparing products and services ...

You’re probably not aware of it, but .55 pounds—or 250 grams—represents an important weight limit for drones, at least in the United States. Any flying machine weighing more than that requires ...