The lawn size on the box is not one outing: Mammotion's own tables say four to six charges

Robotic mowers are sold on a single number — the lawn they are rated for — and Mammotion's own comparison tables show that the number describes a schedule, not a session. Every machine in the manufacturer's European store lists a second figure next to it, the area covered per charge, and the gap between the two is where the day actually goes. The YUKA is rated for 2,000 square metres and covers about 350 of them per charge. That is roughly six cycles, and each cycle is 65 minutes of mowing followed by 100 minutes of charging, so the machine spends more time on the dock than on the grass. The LUBA 2 AWD 5000X is rated for 5,000 square metres and covers 1,200 per charge: four to five cycles of 190 minutes mowing and 120 minutes charging. The flagship LUBA 3 AWD manages up to 1,700 square metres in one 215-minute run, and is sold in variants rated up to 10,000 square metres. Read the two columns together and one variant stands out for the opposite reason. The cheapest LUBA 3 AWD, rated for 1,500 square metres, is the only machine in the line whose whole rated lawn fits inside a single charge. Everywhere else the rating is a promise about what the robot will finish over a day or two of unattended work, not about what it will do before it needs to plug itself in. None of this is hidden — the numbers come from the manufacturer's own pages, published next to each other. It matters because the per-charge figure is the one that decides whether a lawn is mowed on Saturday morning or over the weekend, and it is the figure that disappears from the marketing headline. It is also the figure that changes when a battery ages, while the lawn rating on the box stays the same for the life of the product.