What a robot really costs to own

For 12 of the 20 robots we can’t give a yearly figure. For 11, at least one core consumable has no official price or replacement interval; for the rest, we haven’t finished reading the prices. Adding up only the items that are priced would make these robots look cheaper than they are, so we don’t. This is also why they score 0 on running costs (criterion C1) until the maker publishes the missing information, or until we finish reading the prices.

Not counted above, because they are optional or apply only after a free period. Three of the 20 robots advertise features that need a paid plan: Worx Landroid Vision Cloud 800 m², Mammotion LUBA mini 2 AWD 1000 and Segway Navimow i205 AWD. See each robot’s “No subscription for core features” score for the details.

• Only official consumables, at prices from the brand’s Spanish or EU store or from Spanish retailers.
• Replacement intervals are the maker’s own. Where it gives a range (say, every 3 to 6 months), we use the midpoint.
• Packs are divided by the number of items, multiplied by how many the robot uses at once. Kits that repeat items sold individually are counted once.
• Cleaning solutions and other supplies that depend on how much you use them aren’t counted, and neither are electricity, repairs or accessories.
• “Robot price” is the Spanish or EU launch price where we could source it, otherwise the current list price.