The Roomba S9+ price ranges from about $250 for a used robot to more than $1,000 for sealed old stock, with refurbished units often landing between those extremes. Condition, included Clean Base, battery health, seller warranty, and shipping are the main reasons quotes differ.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Used S9+ bundle | $250 | $400 | $600 | Robot and Clean Base; condition varies |
| Refurbished S9+ bundle | $400 | $600 | $800 | May include a short seller warranty |
| New or sealed old stock | $700 | $1,000 | $1,400+ | Limited availability; confirm bundle contents |
| Replacement battery | $35 | $60 | $100 | Third-party and genuine parts differ |
Typical S9+ bundle prices by condition
For a working S9+ with its Clean Base automatic dirt-disposal dock, a practical U.S. budget is $250-$600 used and $400-$800 refurbished. Sealed units can list for $700-$1,400 or more, but higher asking prices reflect scarcity rather than a guarantee of better cleaning performance. The S9+ originally carried a premium flagship price, and it is now a discontinued model.
Around $500-$650 is a reasonable target for a tested refurbished bundle with a return window. A bare robot without its dock should cost less; verify the exact model and included parts before comparing listings.
Assumptions: U.S. online resale pricing, a functioning robot, standard accessories, and no unusual shipping or sales-tax charges.
What the robot, Clean Base, and parts add to the quote
The bundle price mostly reflects the robot and its self-emptying dock. Replacement parts can make a low-priced listing more expensive, especially if the vacuum needs a battery, filters, edge brushes, or a Clean Base bag. These are planning ranges, not fixed manufacturer charges; availability and whether a part is genuine affect the final amount.
| Cost component | Low | Average | High | Pricing note |
|---|---|---|---|---|
| Used S9+ robot | $150 | $275 | $400 | Without dock or full accessory set |
| Clean Base dock | $100 | $200 | $300 | Used, tested replacement unit |
| Battery | $35 | $60 | $100 | Third-party to genuine replacement |
| Filter and brush refresh | $20 | $40 | $70 | Depends on part count and brand |
| Shipping and handling | $0 | $20 | $60 | May be included or charged separately |
Check whether the Clean Base is included and tested, since buying it separately can erase the savings on a cheap robot.
Battery runtime, dock function, and warranty change value
Battery condition is difficult to judge from appearance. Ask for a cleaning-cycle test or a recent runtime estimate: a unit that runs less than about 60 minutes before returning to charge may need a battery sooner than one completing roughly 90-120 minutes under ordinary conditions. Carpet, suction settings, and room layout affect runtime, so treat seller estimates as approximate.
Test whether the dock empties debris, the robot connects to the app, and the wheels, brushes, and sensors operate. A seller warranty of 30-90 days adds value over a no-returns marketplace sale. Missing parts, error codes, or a dock that fails to evacuate dirt justify a lower offer or avoiding the listing.
Price the S9+ by its working condition, not by the seller’s description of it as “like new.”
Refurbished S9+ or newer Roomba model
A refurbished S9+ can make sense when its wide, D-shaped body and strong carpet pickup match the home, but age and parts availability matter. Newer Roomba models may cost more upfront while offering a fresh battery, current support, or different navigation features. Compare the complete price, not just the robot listing: include a compatible dock, bags, replacement parts, and any return shipping.
For a basic replacement vacuum, a new entry-level robot may be available around $200-$400, while newer self-emptying bundles commonly run about $400-$900 depending on features and sales. Those are broad comparison ranges; specifications and promotions vary. A $600 refurbished S9+ is less compelling if a newer bundle with a warranty is similarly priced.
Compare total ownership and warranty terms before paying a rarity premium for the discontinued S9+.
Three S9+ listing examples and realistic totals
These examples show how parts and condition alter the budget. They assume domestic shipping and exclude sales tax, which varies by location. A used robot may be a bargain only if it arrives functional and includes the accessories needed for the intended setup.
| Example | Listing price | Likely added expense | Estimated total |
|---|---|---|---|
| Used robot, no dock, tested | $275 | $150-$250 for a used Clean Base | $425-$525 |
| Refurbished bundle, 60-day seller warranty | $575 | $20-$50 for bags or worn parts | $595-$625 |
| Sealed old-stock bundle | $1,050 | $0-$40 shipping | $1,050-$1,090 |
The refurbished bundle often offers the clearest balance of price and buyer protection, if the warranty and return policy are in writing.
When should a low S9+ offer be treated cautiously
Prices under $250 can indicate a bare robot, a nonworking unit, missing dock, or parts-only sale rather than a complete bargain. Before paying, request photos of the model label, robot underside, dock, charging contacts, and included accessories. Ask whether the seller has run a full cleaning cycle and whether the unit has been reset from its previous account.
For a local pickup, test charging and dock operation before handing over payment. For shipped purchases, confirm the return period and who pays return postage if the battery, motor, or dock fails. Marketplace protection may not cover every private-sale problem.
A very low price is most useful when the listing clearly identifies defects and the cost to correct them.
How to lower the S9+ price without costly surprises
Compare complete bundles from several sellers, including shipping and return terms, instead of sorting by headline price alone. Ask for a discount when the unit lacks bags, filters, or brushes, but estimate replacement costs first. A missing dock is a substantial expense, while a worn filter is comparatively minor.
Choose a refurbished unit with a stated test process and return window over an untested bargain when the price difference is modest. Avoid paying extra for sealed packaging if the seller cannot provide a valid warranty. If the robot’s battery is weak, use that specific issue to negotiate rather than assuming the whole unit needs replacement.
Keeping the purchase to a tested robot-and-dock bundle is usually the simplest way to control the final bill.
Sales tax, delivery, and return fees in the final budget
Online prices may exclude sales tax, which depends on the buyer’s state and local rate. Large or heavy dock shipments can add roughly $10-$60 when shipping is not included, while return postage can cost more if the seller requires the buyer to cover it. Local pickup avoids delivery charges but provides less protection unless the buyer can test the vacuum first.
Because the S9+ is discontinued, inventory and seller terms can change quickly. Save the listing details and confirm that the quoted price includes the Clean Base, power cord, and any promised warranty before checkout.
Budget for tax and delivery separately so the checkout total remains within the target price range.