What was the lowest Amazon price in the 90 days before this check?

$299.99. At our check on Oct 12, 2026, the price was $299.99.

What does the “typical” price on this page mean?

It is the time-weighted average of Amazon’s own price over the 90 days before our check: $576.35. The median was $799.99.

How often does the price change?

Amazon changed it 4 times in the 90 days before our check, about 1.3 times a month.

Is this still the price today?

Not necessarily. We recorded $299.99 on Oct 12, 2026. Amazon sets the current price, which the listing and checkout show.

Past check

Originally checked Oct 12, 2026, 5:30 PM PDT

Archived verification record

iRobot Roomba Plus 405

iRobot

Researched variant · G181020 · Medium · Charcoal Gray

Photo from the Amazon listing

Research receiptASIN B0DPNKVFVWArchived check

Direct answer

Was this a good price?

At Oct 12, 2026, 5:30 PM PDT, yes. This exact variant passed our privately measured price-history threshold. That verification window has expired, so this page does not claim the current offer is still a deal.

$29999

Typical ~~$576.35~~

48% off Save $276.36

Lowest price in 90 days

Price checked Oct 12, 5:30 PM PDT

Tracked below its usual 90-day Amazon price in Home & Kitchen.

See current listing on AmazonSee on Amazon

As an Amazon Associate I earn from qualifying purchases. Amazon sets the price and availability you see after clicking.

90-day price history

Amazon price
Typical $576.35
Low $299.99

Amazon price over the 90 days before our check: high $799.99, low $299.99, typical $576.35, $299.99 when checked. Gaps mean Amazon had no price listed.

Read the chart

What the 90-day history shows

At our check on Oct 12, 2026, Amazon’s own price was $299.99. In the 90 days before that, it ranged from $299.99 to $799.99.
The time-weighted average (the “typical” price) was $576.35; the median, the price it sat at or below half the time, was $799.99.
It was at or below $299.99 for 23 days of the 76 days Amazon listed a price.
It had been at or below this price since Oct 11, 2026. Before that, the last time it was this low was Aug 23, 2026.
Amazon changed the price 4 times in that window, about 1.3 times a month.
Amazon listed no price for about 14 days.

Rule-based answer

Was it a good time to buy?

Yes. At our check this was one of the best prices in the last 90 days.

It matched or beat every Amazon price in the 90 days before the check.
It was 63% below its median price of $799.99.

This check has expired, so treat it as history, not today’s price.

Evidence sheet

What cleared the gate?

The exact ASIN and variant matched the research receipt.
The offer beat our private recent-history threshold at the timestamp above.
The evidence was fresh when this check was approved.
A human approved the product and wording before publication.

Before checkout

What should you check now?

Confirm the size, color, seller, shipping and current total on Amazon before buying.

For Home & Kitchen, also confirm on the listing:

Voltage, wattage, and plug type for where you will use it.
The warranty and who honors it when the seller is not Amazon.
The ongoing cost of filters, bags, or other replacement parts.

Amazon’s checkout total—not this page—is the current source of truth.