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| Feature | iRobot Roomba Plus 505 | Roborock Saros 20 Sonic | Winner |
|---|---|---|---|
| Price | $695.00 | $1499.99 | iRobot Roomba Plus 505 |
| Battery Life | 180 minutes | 190 minutes | Roborock Saros 20 Sonic |
| Suction Power | 7000Pa | 36000Pa | Roborock Saros 20 Sonic |
| Rating | 4.2 | 4.2 | Tie |
| Warranty | 1 year | 1 year | Tie |
| Auto Recharge | YES | YES | Tie |
| Connectivity | 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth | 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
| Navigation Type | Laser (LiDAR) | Laser (LiDAR) | Tie |
| Obstacle Detection | YES | YES | Tie |
| Cliff Detection | YES | YES | Tie |
| Multi-Room Mapping | YES | YES | Tie |
What the differences mean
Suction power
36,000 Pa on the Roborock Saros 20 Sonic against 7,000 Pa on the iRobot Roomba Plus 505, a large gap on carpet and stubborn hard-floor debris.
Height
At 79.8 mm tall the Roborock Saros 20 Sonic slides under sofas, beds and cabinets the 106 mm tall iRobot Roomba Plus 505 cannot fit under.
Noise
iRobot Roomba Plus 505 owners describe the AutoWash dock running louder than expected during its self-cleaning cycle. The Roborock Saros 20 Sonic is rated at 64 dB, typical for its suction class.
Charging time
The Roborock Saros 20 Sonic recharges in about 2.5 hours against roughly 4.5 hours on the iRobot Roomba Plus 505, so an interrupted job resumes sooner.
Price
The iRobot Roomba Plus 505 is more affordable than the Roborock Saros 20 Sonic, despite matching it on dock automation and Matter-based smart home support.
Which one to buy if
- maximum suction is the priority
The Roborock Saros 20 Sonic's 36,000 Pa is well ahead of the iRobot Roomba Plus 505's 7,000 Pa.
- furniture sits very low to the floor
At 79.8 mm tall, the Roborock Saros 20 Sonic clears more furniture than the 106 mm iRobot Roomba Plus 505.
- budget is the deciding factor
The iRobot Roomba Plus 505 costs less than the Roborock Saros 20 Sonic while matching its dock automation.
- a faster recharge between larger jobs matters
The Roborock Saros 20 Sonic recharges in about 2.5 hours against 4.5 hours on the iRobot Roomba Plus 505.
- + Price: $695.00
- - Battery Life: 180 minutes vs 190 minutes
- - Suction Power: 7000Pa vs 36000Pa
- + Battery Life: 190 minutes
- + Suction Power: 36000Pa
- - Price: $1499.99 vs $695.00
What owners say
Owners of the iRobot Roomba Plus 505 consistently praise how fast and accurate its LiDAR mapping is, often finishing a full floor in well under an hour on the first run, and call out strong pet hair pickup on both carpet and hard floors along with an AutoWash dock that rinses the mop pads mid-cycle before emptying and drying everything at the end. Their most common complaint is noise, particularly while the dock runs its self-cleaning cycle, which several compare to a washing machine running nearby, and a smaller group reports navigation or bumper-stuck errors emerging a few months after purchase. Buyers are also advised to purchase only from iRobot or an authorized retailer, since warranty support was harder to obtain for some who bought through third-party sellers.
Price history compared
Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.
- iRobot Roomba Plus 505
- Roborock Saros 20 Sonic
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Frequently Asked Questions
Which is better overall: iRobot Roomba Plus 505 or Roborock Saros 20 Sonic?
The Roborock Saros 20 Sonic for stronger suction and a slimmer body. The iRobot Roomba Plus 505 is the pick for buyers who want the same automated mop dock at a lower price.
What is the biggest difference between the iRobot Roomba Plus 505 and the Roborock Saros 20 Sonic?
Suction and height. The Roborock Saros 20 Sonic is rated at 36,000 Pa and stands just 79.8 mm tall, while the iRobot Roomba Plus 505 is rated at 7,000 Pa, stands 106 mm tall and costs less.
Do the iRobot Roomba Plus 505 and the Roborock Saros 20 Sonic both work with Apple Home?
Yes. Both support Matter, which brings them into Apple Home and Samsung SmartThings, and both also work with Alexa, Google Home and Home Assistant.
Which one fits under lower furniture?
The Roborock Saros 20 Sonic, at 79.8 mm tall against the iRobot Roomba Plus 505's 106 mm, reaches more beds, sofas and cabinets.
Who should buy the iRobot Roomba Plus 505?
Buyers who want fast, accurate mapping and an automated mop dock at a lower price, and are buying from iRobot or an authorized retailer for warranty coverage.
Who should buy the Roborock Saros 20 Sonic?
Buyers who want the strongest suction and the slimmest body of the pair, and are willing to pay more for it.
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