iRobot Roomba Plus 504 Vac
No lab has tested it yet, so it is not in our ranking.
- up to 75 daysDust bag lastslonger than 8 of 12
Is the iRobot Roomba Plus 504 Vac right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
Green is the best of these 3, also when they share the lead.
| This model iRobot Roomba Plus 504 Vac | Higher score, 63% cheaper Roborock Q10 S5+ Best on 1 fact | Higher score, 59% cheaper Dreame D20 Plus Best on 4 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | $749Amazon.com | $279Amazon.com best | $309Amazon.com |
| Score | not in our ranking | best | |
| Rank | – | rank 2 of 13 with a self-emptying station | rank 1 of 13 with a self-emptying station |
| Customer rating | ★ 3.7 · 648 reviews | ★ 4.0 · 20,548 reviews | ★ 4.2 · 3,667 reviews best |
| Mopping | |||
| Mop type | no mop | flat or vibrating pad | flat or vibrating pad |
| Mop lift on carpet higher is better | – | 0.3 in (8 mm) | – |
| Automatic mop detach | – | no | – |
| Washes the mop | – | no | no |
| Hot-air drying | – | no | – |
| Station | |||
| Station same on all | self-emptying station | self-emptying station | self-emptying station |
| Dust bag lasts longer is better | up to 75 days | up to 49 days | up to 150 days best |
| Plumbing hookup | – | no | – |
| Brush and obstacles | |||
| Anti-tangle brush same on all | yes | yes | yes |
| Obstacle avoidance | AI camera | 3D sensor (structured light) | – |
| Climbs thresholds up to higher is better | – | 0.8 in (20 mm) | 0.8 in (20 mm) |
| Climbing system for high thresholds | – | no | – |
| Size, noise and age | |||
| Robot height lower is better | 4.1 in (10.4 cm) | 3.9 in (9.9 cm) | 3.8 in (9.7 cm) best |
| Noise not judged | – | 65 dB | – |
| On the market since | – | February 2025 | – |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Prices per store
On October 3, 2026 the lowest price for the iRobot Roomba Plus 504 Vac is $749 at Amazon.com, shipping to the United States included.
All prices include shipping to the United States. Sales tax is added at checkout. We may earn a commission when you buy through these links. It never changes our ranking.
| Store | Color | Price | Delivery time and returns | Reviews | Checked | Link to the store |
|---|---|---|---|---|---|---|
 Amazon.com blacklowest price | black | $749lowest price in 90 days: $749 | about 1–5 dayslowest price | ★ 3.7 (648) | 4 hours ago | Visit store ↗ |
Price history
iRobot Roomba Plus 504 Vac specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Consumables: a dust bag in the station, which lasts up to 75 days.
Suction and brushes 4 facts
- Anti-tangle brush
A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets.
- yes
- Carpet detection
The robot notices when it drives onto a carpet. Most then raise their suction, and a mopping robot lifts its mop or leaves it at the dock.
- detects carpet and boosts suction
- Suitable for pet hair
Whether the robot copes with pet hair: a brush that hair does not wind around and a dock that empties the bin for you. Where the maker does not say so itself, we read it from those two.
- yes
- Dirt detection
A sensor notices where more dirt lies, at the doormat for example, and the robot cleans that patch longer or a second time.
- yes
Mopping 1 fact
- Mop type
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- no mop
Dock 3 facts
- Empties the dust bin
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.
- yes
- Bagless
The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself.
- no
- Dust bag lasts
How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter.
- up to 75 days
Navigation and obstacles 4 facts
- Navigation
How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognizes more.
- LiDAR turret
- Obstacle avoidance
How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact.
- AI camera
- Multi-floor maps
How many floor plans the robot keeps. With more than one it knows which floor it is on when you carry it up or down the stairs.
- 5
- Camera on board
Whether the robot has a camera, and what for: to recognize obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 2 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 4.1 in (10.4 cm)
- Robot weight
What the robot weighs. It counts most if you carry it up a staircase every day.
- 7.5 lb (3.4 kg)
Smart features and warranty 2 facts
- Voice assistants
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Google Assistant, Siri
- Home Assistant
Whether the robot works with Home Assistant, the home automation software you run yourself. Official means the integration comes with Home Assistant itself, community that volunteers maintain it.
- official integration
Sources: irobot.com · home-assistant.io
