The purchase price is only part of the bill. Add the consumables your model uses, electricity and any paid services, then keep possible repairs separate. There is no honest fixed annual cost that fits every robot and household.
Start with the parts you will actually replace
Find the parts page for the exact robot and dock. Write down what is included with the robot, how many pieces come in each replacement pack and the delivered price. A cheap pack of two bags is not necessarily better value than a more expensive pack of six.
| Item | What to check |
|---|---|
| Dust bags | Pack size, compatibility and how quickly your household fills one. |
| Filters and brushes | The exact part number, cleaning instructions and replacement guidance. |
| Mop pads or rollers | Whether the part is washable, how it wears and what a replacement costs. |
| Cleaning solution | Approved product, dilution and bottle size. Do not compare bottle prices alone. |
| Electricity | Robot charging, dock washing and drying, including standby use. |
| Battery or repairs | Availability, labour and warranty arrangements; keep uncertain costs separate. |
Use the manual as a starting point, not a shopping alarm
Replacement reminders are useful, but actual use matters. A robot cleaning daily after two dogs has a different workload from one cleaning a small flat twice a week. Roborock’s Qrevo-series manual notes that replacement frequency can vary with use. Follow the manual for cleaning, inspect wear and do not assume a filter can be washed just because a similar-looking one can.
Make a three-year comparison
- Use the current delivered purchase price for the exact bundle you want.
- For each consumable, divide pack price by the number of items. Multiply that unit cost by your estimated replacements over three years, allowing for the spares already included.
- Add approved detergent and any subscription or connectivity charge you actually need.
- Add an electricity estimate. If you already own the robot, a suitable plug-in energy meter can measure the robot and dock together over a normal week. Include washing, drying and standby, then multiply the kWh by your tariff.
- Keep possible battery replacement and repairs on a separate line. Do not present a repair you may never need as a certain annual expense.
The result is a household estimate, not a measured running cost for everyone. Label your assumptions so you can change them when your routine changes.
Is the larger accessory bundle worth it?
A Complete or accessory bundle can be good value if it contains parts you will use. Compare its extra cost with the normal price of those same parts, after subtracting anything already included in the standard box. Check the robot and dock model numbers too: similar names do not prove the hardware is identical.
The cost a spreadsheet misses
Consider your time as well as the consumables. A dock that saves daily emptying may be worth paying for in a pet home. A complicated water system may add little if you rarely mop. Before buying, check the maintenance steps and whether the tanks are easy to lift, carry and rinse in your home.
- Check that replacement parts can actually be ordered in your country.
- Look up the service route before choosing an imported model.
- Compare the whole three-year estimate, but choose a robot that cleans your floors well. Cheap filters do not compensate for a machine you have to rescue every day.