The US leads in larger drones, like the Global Hawk, which is the size of a regional airliner, can stay airborne for more than a day, and cover tens of thousands of kilometers in that time. The smaller and cheaper ones are just expensive toys, far behind what's seen in Ukraine in terms of actual usefulness. A cheap Chinese agricultural sprayer drone with equally cheap 3D-printed drum of infantry grenades or an anti-tank mine strapped to it outperforms most "military grade" commercial offerings like Switchblade that cost ten times as much and are good for only a single use, unlike the sprayer, which returns home after dropping its payload.