Qrevo 2 Pro
$649.99$799.99
- 20,000 PaSuction power: 20,000 Pa
- LiDARNavigation: LiDAR
- 9.65 cmRobot height: 9.65 cm
- Rotating padsMopping system: Rotating pads
Dreame L40 Ultra Gen 2 vs iRobot Roomba 115X Combo
The L40 Ultra Gen 2 leads on specs, ahead in 2 of 3 areas.
The L40 Ultra Gen 2 wins 3 of the 4 specs where they clearly differ. The Roomba 115X Combo costs $99.99 less. Biggest difference: suction power (25,000 Pa vs 15,000 Pa).
Biggest differences
Not enough data to chart: Power & Noise.
-
Suction power Peak suction in pascals as stated by the maker. Above ~8,000 Pa the difference on hard floors is small; it matters most on thick carpet.
L40 Ultra Gen 2 · 67% higher- L40 Ultra Gen 2
- 25,000 Pa
- Roomba 115X Combo
- 15,000 Pa
-
Multi-floor maps Number of floor plans it can store. Useful if you carry it between floors.
L40 Ultra Gen 2 · 33% higher- L40 Ultra Gen 2
- 4 maps
- Roomba 115X Combo
- 3 maps
-
Dust bag capacity A 3 L bag lasts roughly 6–8 weeks in an average home.
L40 Ultra Gen 2 · 28% higher- L40 Ultra Gen 2
- 3.2 L
- Roomba 115X Combo
- 2.5 L
-
Robot height Lower robots fit under more sofas and beds. Measure your lowest furniture gap.
Roomba 115X Combo · 19% lower- L40 Ultra Gen 2
- 9.7 cm
- Roomba 115X Combo
- 7.89 cm
-
Mopping system Rotating pads and roller mops scrub; static pads only wipe. Look for mop lifting if you have carpets.
No better or worse- L40 Ultra Gen 2
- Rotating pads
- Roomba 115X Combo
- Static pad
Based on 5 and 3 scored specs of 6. Unknown specs are skipped. How we score
Pick the L40 Ultra Gen 2 if…
- you want more suction power: 25,000 Pa vs 15,000 Pa
- you want more multi-floor maps: 4 maps vs 3 maps
- you want more dust bag capacity: 3.2 L vs 2.5 L
Pick the Roomba 115X Combo if…
- you want to spend less — it’s $99.99 cheaper
- you want less robot height: 7.89 cm vs 9.7 cm
Best price now
L40 Ultra Gen 2
Price as of 4 Nov 2026 · amazon.com
We earn a commission on purchases, and it never affects a score. As an Amazon Associate I earn from qualifying purchases.
Other robot vacuums to consider
C28
$499.98$799.99
- 15,000 PaSuction power: 15,000 Pa
- LiDARNavigation: LiDAR
- 11.06 cmRobot height: 11.06 cm
- Roller mopMopping system: Roller mop
Qrevo S Pro
$399.99$699.99
- 18,500 PaSuction power: 18,500 Pa
- LiDARNavigation: LiDAR
- 9.65 cmRobot height: 9.65 cm
- Rotating padsMopping system: Rotating pads
E25
$599.98$999.99
- 20,000 PaSuction power: 20,000 Pa
- LiDARNavigation: LiDAR
- 11.18 cmRobot height: 11.18 cm
- Roller mopMopping system: Roller mop
Q7 M5+
$359.99
- 10,000 PaSuction power: 10,000 Pa
- LiDARNavigation: LiDAR
- 9.9 cmRobot height: 9.9 cm
- Static padMopping system: Static pad
The full record
27 specs, grouped by area.
1. Cleaning
L40 Ultra Gen 2
| Fact | L40 Ultra Gen 2 | Roomba 115X Combo | Margin |
|---|---|---|---|
| Suction power Peak suction in pascals as stated by the maker. Above ~8,000 Pa the difference on hard floors is small; it matters most on thick carpet. | 25,000 Pa | 15,000 Pa | +67% |
| Mopping system Rotating pads and roller mops scrub; static pads only wipe. Look for mop lifting if you have carpets. | Rotating pads | Static pad | |
| Mop lift height How far the mop lifts on carpet. 10 mm+ keeps most rugs dry; some models detach pads entirely. | 10.5 mm | ? | |
| Carpet detection An ultrasonic or optical sensor that boosts suction and avoids mopping on carpet. | Yes | Yes |
3. Dock
L40 Ultra Gen 2
| Fact | L40 Ultra Gen 2 | Roomba 115X Combo | Margin |
|---|---|---|---|
| Self-emptying The dock sucks the dust bin empty into a bag. Saves emptying the robot after every run. | Yes | Yes | |
| Mop washing Hot-water washing removes grease better and reduces smell. | ? | ? | |
| Mop drying Warm-air drying temperature. Without it, damp pads can smell within a day. | ? | ? | |
| Dust bag capacity A 3 L bag lasts roughly 6–8 weeks in an average home. | 3.2 L | 2.5 L | +28% |
4. Power & Noise
Even
| Fact | L40 Ultra Gen 2 | Roomba 115X Combo | Margin |
|---|---|---|---|
| Runtime On the lowest suction setting. Expect about half on max power. | 231 min | ? | |
| Noise level Every 3 dB is roughly a doubling of sound energy. Under 60 dB is fine for running while you are home. | ? | ? |
5. Connectivity
| Fact | L40 Ultra Gen 2 | Roomba 115X Combo | Margin |
|---|---|---|---|
| Wi-Fi 2.4 GHz has longer range. Dual band helps in crowded apartment buildings. | ? | 2.4 GHz | |
| Thread Low-power mesh used by Matter. Needs a Thread border router (HomePod mini, Nest Hub, SkyConnect…). | ? | ? | |
| Zigbee Mature mesh protocol. Works locally with Zigbee2MQTT or ZHA in Home Assistant. | ? | ? | |
| Bluetooth Usually only for setup or short-range control. | ? | ? |
6. Integrations
| Fact | L40 Ultra Gen 2 | Roomba 115X Combo | Margin |
|---|---|---|---|
| Matter Works with every major platform locally. Check which device types are supported — some features may stay app-only. | ? | ? | |
| Home Assistant Core integrations ship with Home Assistant. HACS integrations are community-maintained and can break after updates. | HACS | ? | |
| Alexa | Yes | Yes | |
| Google Home | Yes | Yes | |
| Apple Home | ? | ? |
7. Privacy & Local Control
| Fact | L40 Ultra Gen 2 | Roomba 115X Combo | Margin |
|---|---|---|---|
| Works offline Keeps working with your internet down — schedules, automations and local apps still run. | ? | ? | |
| Cloud account required You must create a manufacturer account to set it up. Some devices stop working if the cloud shuts down. | ? | ? | |
| Subscription for key features Features locked behind a monthly fee, e.g. history, AI detection or remote access. | ? | ? | |
| Firmware updates via HA Update the firmware from Home Assistant without the vendor app (Zigbee2MQTT OTA, Matter OTA). | ? | ? |
