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 eufy C28
The L40 Ultra Gen 2 leads on specs, ahead in 3 of 4 areas.
The L40 Ultra Gen 2 wins 3 of the 4 specs where they clearly differ. The C28 costs $70 less. Biggest difference: suction power (25,000 Pa vs 15,000 Pa).
Biggest differences
-
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
- C28
- 15,000 Pa
-
Robot height Lower robots fit under more sofas and beds. Measure your lowest furniture gap.
L40 Ultra Gen 2 · 12% lower- L40 Ultra Gen 2
- 9.7 cm
- C28
- 11.06 cm
-
Runtime On the lowest suction setting. Expect about half on max power.
C28 · 9% higher- L40 Ultra Gen 2
- 231 min
- C28
- 251 min
-
Dust bag capacity A 3 L bag lasts roughly 6–8 weeks in an average home.
L40 Ultra Gen 2 · 7% higher- L40 Ultra Gen 2
- 3.2 L
- C28
- 3 L
-
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
- C28
- Roller mop
Based on 5 and 5 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 less robot height: 9.7 cm vs 11.06 cm
- you want more dust bag capacity: 3.2 L vs 3 L
Pick the C28 if…
- you want to spend less — it’s $70 cheaper
- you want more runtime: 251 min vs 231 min
Best price now
L40 Ultra Gen 2
Price as of 4 Nov 2026 · amazon.com
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Other robot vacuums to consider
Roomba 115X Combo
$469.99
- 15,000 PaSuction power: 15,000 Pa
- LiDARNavigation: LiDAR
- 7.89 cmRobot height: 7.89 cm
- Static padMopping system: Static pad
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 | C28 | 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 | Roller mop | |
| 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 | C28 | 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. | ? | 50 °C | |
| Dust bag capacity A 3 L bag lasts roughly 6–8 weeks in an average home. | 3.2 L | 3 L | +7% |
4. Power & Noise
C28
| Fact | L40 Ultra Gen 2 | C28 | Margin |
|---|---|---|---|
| Runtime On the lowest suction setting. Expect about half on max power. | 231 min | 251 min | +9% |
| 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 | C28 | 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. | ? | Yes |
6. Integrations
| Fact | L40 Ultra Gen 2 | C28 | 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 | HACS | |
| Alexa | Yes | Yes | |
| Google Home | Yes | Yes | |
| Apple Home | ? | ? |
7. Privacy & Local Control
| Fact | L40 Ultra Gen 2 | C28 | 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. | ? | Yes | |
| 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). | ? | ? |
