Robotics papers decoded, machines priced, and the chip-industry job market counted — translated from our Korean field lab.
Serving robot rentals fell 40.1% in a year to a $230 monthly average, yet 73.3% of owners who adopted one say nothing changed. Here is the full cost math — including why “70% government support” quietly collapses to 30.7%.
One shopper cancelled a six-year appliance subscription after a week and was billed $1,600. So I multiplied a robot vacuum’s $30 monthly fee by 72 months — and found the same LG model listed at two different rates, $0.24 million apart.
One booth says 36,000Pa. The booth two steps away says 10W. No formula converts one into the other — and Samsung sells the same machine as both. Here is what actually separates the four 2026 flagships.
Robot vacuums that fill and drain themselves have to be plumbed in — and the spec that decides whether yours can be is drain height, not suction. Samsung caps it at 0.4 m, LG allows 1.5 m: a 3.75x spread, plus $0–$160 in fitting fees.
Boiling the mop at 100 °C fixes zone 1. The smell in your living room comes from zone 2 — the dirty-water tank Samsung’s own FAQ says a human must empty every six days. Then the running-cost math: $90 to $160 a year.
Naver wound Clova down, LG Uplus killed 13 services on June 30, and Google ended the Nest Mini. Here is the 2026 read: the best smart-home buy is a $30 hub with no microphone at all.
Score both machines against the ten jobs a home actually generates: the stick vacuum handles eight alone, the robot exactly one nobody else can. Which to buy first, and the best combination at $500 $1,000 and $1,600 (≈$500 / $1,000 / $1,570).
A hire runs $25. Against the best-selling $110 machine, buying overtakes renting on the fifth hire — about two and a half years at two cleans a year. Plus the fit check that decides everything.
Narwal pushed suction from 12,000Pa to 18,000Pa and added a 75°C hot-water mop wash, and the Z10 Ultra starts around $500 online. Here is what got better — and the three things that did not.
Published averages for the same employer differ by up to 2.5x, and every live opening hides the salary. Anatomy of a data vacuum — and three rules for reading pay figures anywhere.