# iRobot Roomba Plus 515 Combo vs MOVA E40 Ultra

As of Nov 12, 2026, the iRobot Roomba Plus 515 Combo costs $430 and the MOVA E40 Ultra costs $449, so the iRobot Roomba Plus 515 Combo is $19 cheaper. The iRobot Roomba Plus 515 Combo has a published review score and ranks #26 in our robot vacuums ranking; the MOVA E40 Ultra is not scored yet. Pick the iRobot Roomba Plus 515 Combo for small homes with low sofas and beds. Pick the MOVA E40 Ultra for tidy homes that want a full auto dock under $500.

Prices checked Nov 12, 2026. HTML version: https://robotsforthat.com/vs/irobot-roomba-plus-515-combo-vs-mova-e40-ultra/

## Side by side

| | iRobot Roomba Plus 515 Combo | MOVA E40 Ultra |
|---|---|---|
| Price | $430 | $449 |
| 3 year cost | $430 | $449 |
| Our score | 7.0/10 | Not scored yet |
| Rank in Floors | #26 | #65 |
| Status | on sale | on sale |
| Warranty | n/a | Up to 3 years (MOVA US store) |
| Suction | iRobot US says 3x the suction of the Roomba Plus 505 Combo with four levels and gives no Pa figure; Just A Dad Approved lists 22,000 Pa; Lifehacker Japan instead says 3x the Roomba 105 Combo | 19,000 Pa claimed (MOVA); Vacuum Wars measured 0.88 kPa at max power against a 0.97 kPa average, and 18 CFM airflow |
| Navigation | ClearView LiDAR, up to 3 saved maps for multiple floors, works in the dark (iRobot); Gizmodo Japan reports the LiDAR moved to the front as a 120 degree integrated line laser; Just A Dad Approved found the map slightly off | LiDAR (SmartWorld, MOVA); Gizchina found first pass mapping quick and accurate with no manual fixes; Vacuum Wars measured 0.60 m2/min against a 0.75 average |
| Obstacle avoidance | Front line laser recognizes cords, shoes, pet bowls, toys, pets and people (iRobot); no camera (Just A Dad Approved), which scored clutter 7/10 but called avoidance weak | Single line laser, no camera (MOVA); Vacuum Wars scored it 5 of 24 objects avoided |
| Mopping | Yes, two DualClean spinning pads at 180 RPM that lift 10 mm on carpet, with PerfectEdge extension for 18% more edge coverage and a SmartScrub mode (iRobot) | Two spinning mops, the right one extends up to 4 cm, 10.5 mm lift on carpet with ultrasonic carpet detection (MOVA); Vacuum Wars combined mopping score 17.6 against a 22.7 average |
| Self empty | Yes, bagged auto empty into the dock; iRobot says up to 3 months hands free | Yes, 3.2 L bag, up to 75 days per MOVA lab test (SmartWorld reported 3.5 L) |
| Dock features | Empties debris, washes pads with hot water, dries pads at 113 F, refills clean water and takes in dirty water (iRobot). iRobot's page lists the wash as 167 F in one place and 140 F in another; Just A Dad Approved lists 140 F. No cleaning solution tank (Just A Dad Approved) | Auto empty, mop washing and hot air drying, 4.5 L clean and 4 L dirty tanks (MOVA); wash water is not heated and detergent dispenser is sold separately (SmartWorld) |
| Runtime | Up to 295 min or 2,000 sq ft per charge with a 5,200 mAh battery (iRobot); one iRobot footnote cites 1,000 sq ft instead | Up to 260 min in quiet mode, up to 220 m2 per charge, 5,200 mAh (MOVA); Vacuum Wars estimated about 1,602 sq ft per charge |
| Height | 3.29 in; robot is 11.73 x 11.93 in and 6.44 lb, 46% smaller by volume than the Roomba Plus 505 Combo (iRobot) | n/a |
| Pet hair | Single brush roll with a comb; Just A Dad Approved scored its hair tangle test 5/10 with long hair wrapping, while Gizmodo Japan saw cat and dog hair picked up well | Vacuum Wars measured 47% flattened pet hair pickup against an 81% average, and 44% of 7 inch hair tangled against a 28% average |
| App | Roomba Home app with schedules; works with Alexa, Siri and Google Assistant (iRobot); Just A Dad Approved reported repeated Wi-Fi drops and app freezes | MOVAhome app with per room settings, map editing, no go zones and scheduling (MOVA, SmartWorld); Gizchina found it stable with no crashes |
| Threshold | 0.98 in (24 mm) per Just A Dad Approved; iRobot does not list a figure | Climbs up to 2.2 cm (SmartWorld) |
| Noise | n/a | No dB figure from MOVA; SmartWorld called it moderate, with the dock's drying cycle the loudest part |
| Best for | small homes with low sofas and beds | tidy homes that want a full auto dock under $500 |
| Skip if | you need strong obstacle avoidance or have long hair at home | you have long haired pets or cables on the floor |

## What reviewers found

### iRobot Roomba Plus 515 Combo

- Just A Dad Approved (6.5/10): 3 month real world test: subscores Hassle Free 6.7/10, Mop Performance 7.2/10, Carpet Cleaning 6.4/10, Hair Tangle 5/10, Obstacle Avoidance 7/10. Reported repeated Wi-Fi disconnects that needed hard reboots, hair wrap on the single brush roll, a slightly off map and a filter that can only be replaced. Says the Amazon only 515X is the same robot. [Source](https://justadadapproved.com/product/irobot-roomba-plus-515-combo-review/)
- Lifehacker Japan: Hands on with the Japanese model: measured 8.4 cm tall, cleaned under low sofas and cabinet toe kicks earlier Roombas missed, and avoided a camera placed as an obstacle. The review lists no drawbacks and carries affiliate links. [Source](https://www.lifehacker.jp/article/2606-roomba-plus-515-report/)
- Gizmodo Japan: Reports 8.4 cm height against 10.6 cm for the 505 Combo, a front 120 degree line laser, and good cat and dog hair pickup with less long hair wrap. Figures come from iRobot's launch event, and the article is labeled PR. [Source](https://www.gizmodo.jp/article/roomba-plus-515-combo/)

### MOVA E40 Ultra

- Vacuum Wars (2.92 Vacuum Wars stars): Bought and tested in house against the original P10 Pro Ultra: 88% carpet deep clean against a 77% average, but 47% flattened pet hair pickup, 44% hair tangle, 5 of 24 obstacles avoided and about 1,602 sq ft per charge. [Source](https://vacuumwars.com/mova-e40-ultra-vs-p10-pro-ultra/)
- Gizchina.it: Used for several weeks as the main home robot: mapping was quick and accurate, the app stable. In turbo mode on about 60 m2 it could drop to about 20% battery, then it recharges and resumes. Suction on long pile carpet may disappoint. [Source](https://en.gizchina.it/2026/01/recensione-mova-e40-ultra/amp/)
- SmartWorld (Italy): Cleaned 100 m2 in about 1.5 hours on just over 50% battery, climbed 2.2 cm ramps and boosted suction on rugs. Mops sometimes brushed rug edges and the drying cycle is fairly loud. Sample supplied by MOVA. [Source](https://www.smartworld.it/recensioni/mova-e40-ultra)

## Questions buyers ask

### Which is better, the iRobot Roomba Plus 515 Combo or the MOVA E40 Ultra?

The iRobot Roomba Plus 515 Combo has a published review score and ranks #26 in our robot vacuums ranking; the MOVA E40 Ultra is not scored yet. Pick the iRobot Roomba Plus 515 Combo for small homes with low sofas and beds. Pick the MOVA E40 Ultra for tidy homes that want a full auto dock under $500.

### Which is cheaper?

The iRobot Roomba Plus 515 Combo at $430, versus $449 for the MOVA E40 Ultra, checked Nov 12, 2026. Over 3 years with running costs: $430 vs $449.

### What is the difference between the Roomba Plus 515 Combo and the E40 Ultra?

Suction: iRobot US says 3x the suction of the Roomba Plus 505 Combo with four levels and gives no… on the Roomba Plus 515 Combo, 19,000 Pa claimed (MOVA); Vacuum Wars measured 0.88 kPa at max power against a 0.97 kPa… on the E40 Ultra. Navigation: ClearView LiDAR, up to 3 saved maps for multiple floors, works in the dark (iRobot)… on the Roomba Plus 515 Combo, LiDAR (SmartWorld, MOVA); Gizchina found first pass mapping quick and accurate with no… on the E40 Ultra. Obstacle avoidance: Front line laser recognizes cords, shoes, pet bowls, toys, pets and people (iRobot); no… on the Roomba Plus 515 Combo, Single line laser, no camera (MOVA); Vacuum Wars scored it 5 of 24 objects avoided on the E40 Ultra.

Full reviews: [iRobot Roomba Plus 515 Combo](https://robotsforthat.com/robot/irobot-roomba-plus-515-combo/index.md), [MOVA E40 Ultra](https://robotsforthat.com/robot/mova-e40-ultra/index.md)