Comparison guide
Roborock Flexi Pro vs Samsung Bespoke AI Jet Ultra 400W: which should you choose?
Roborock Flexi Pro and Samsung Bespoke AI Jet Ultra 400W compared under one framework. One recorded specification difference is Bin capacity: 0.72 L on the Roborock Flexi Pro against 0.5 L on the Samsung Bespoke AI Jet Ultra 400W. Specifications and their sources are recorded alongside.
Published: 2026-08-24 · Updated: 2026-09-21
Cordless Vacuums verdict
Undocumented scoring basis · overall score and upgrade ranking withheld. The table records stored representative configurations; confirm the configuration and price on the merchant page before buying.
- Roborock Flexi Pro: A cordless wet-dry cleaner with 180-degree flat reach, dual-edge cleaning, hot-water washing, and heated drying.
- Samsung Bespoke AI Jet Ultra 400W: A flagship cordless vacuum with up to 400AW, AI floor sensing, 100-minute runtime, and an auto-empty Clean Station.
- Undocumented quality and performance advantages are not ranked
- Specification field coverage (not accuracy): 93%
Choosing between Roborock Flexi Pro and Samsung Bespoke AI Jet Ultra 400W starts with the real use case and the problem to solve, not with which product is newer. No independent laboratory test is implied.
Core specifications on one baseline
| Item | Roborock Flexi Pro | Samsung Bespoke AI Jet Ultra 400W | Delta |
|---|---|---|---|
| Suction power | 0 AW Manufacturer official product page · check date not recorded | 400 AW Manufacturer official product page · check date not recorded | Different |
| Maximum runtime | 50 min Manufacturer official product page · check date not recorded | 100 min Manufacturer official product page · check date not recorded | +100% |
| Bin capacity | 0.72 L Manufacturer official product page · check date not recorded | 0.5 L Manufacturer official product page · check date not recorded | -30.6% |
| Weight | 5 kg Manufacturer official product page · check date not recorded | 2.8 kg Manufacturer official product page · check date not recorded | -44% |
| Charge time | 240 min Manufacturer official product page · check date not recorded | 300 min Manufacturer official product page · check date not recorded | +25% |
| Particle capture | 99.9 % Manufacturer official product page · check date not recorded | 99.999 % Manufacturer official product page · check date not recorded | +0.1% |
| Dock type | Hot-water self-wash and heated-air drying dock Manufacturer official product page · check date not recorded | All-in-one Clean Station with auto-empty and charging Manufacturer official product page · check date not recorded | Different |
| Wet cleaning | Yes Manufacturer official product page · check date not recorded | Optional depending on bundle Manufacturer official product page · check date not recorded | Different |
| Color | Black | Satin Black | Different |
| Connectivity | SlideTech wheels, self-cleaning and drying dock | SmartThings, all-in-one Clean Station charging and auto-empty | Different |
| Region | KR | KR | Same |
| Ai Mode | No data | AI Cleaning Mode 2.0 | Not comparable |
| Model Code | WD3D3A | VS90F40DEK | Different |
| Suction Disclosure | Roborock publishes 17,000 Pa rather than air watts | No data | Not comparable |
| Suction Pa | 17000 | No data | Not comparable |
16 of the 30 values in this table carry a source. The rest have no source on record, which is not the same as being wrong.
How to read Same, Different, No data, Unverified and Not applicable is documented on the configuration-level specification screen. If a condition you require is unknown, withhold the decision and match the exact model, sales region and configuration against the sources on that screen.
Differences recorded in the table
4 fields can be ranked on the same basis, listed by weight.
- Bin capacity · Roborock Flexi Pro 0.72 L, Samsung Bespoke AI Jet Ultra 400W 0.5 L (-30.6%)
- Charge time · Roborock Flexi Pro 240 min, Samsung Bespoke AI Jet Ultra 400W 300 min (+25%)
- Maximum runtime · Samsung Bespoke AI Jet Ultra 400W 100 min, Roborock Flexi Pro 50 min (+100%)
- Weight · Samsung Bespoke AI Jet Ultra 400W 2.8 kg, Roborock Flexi Pro 5 kg (-44%)
The decision axes and the checking order for the whole category are on the Cordless Vacuums comparison page.
The two products this comparison names
Match the listing against these models first. The recorded-field count is catalogue completeness, not product quality.
- Roborock Flexi Pro · Roborock · model number WD3D3A · released 2024 · recorded fields 15/15
- Samsung Bespoke AI Jet Ultra 400W · Samsung · model number VS90F40DEK · released 2025 · recorded fields 15/15
Fields the two products share
4 recorded fields hold the same value for both stored representative configurations, so nothing in this list separates them.
- Region · KR
- Ai Mode · No data
- Suction Disclosure · Roborock publishes 17,000 Pa rather than air watts
- Suction Pa · 17000
Who should choose Roborock Flexi Pro
Roborock Flexi Pro leads the table on Bin capacity, Charge time. A cordless wet-dry cleaner with 180-degree flat reach, dual-edge cleaning, hot-water washing, and heated drying.
Who should choose Samsung Bespoke AI Jet Ultra 400W
Samsung Bespoke AI Jet Ultra 400W leads the table on Maximum runtime, Weight. A flagship cordless vacuum with up to 400AW, AI floor sensing, 100-minute runtime, and an auto-empty Clean Station.
How to read price and purchase availability
No merchant link is shown: neither product has an approved listing whose name and configuration match the catalogue, and AsKrs does not guess a destination.
- Roborock Flexi Pro · No verified purchase link currently available
- Samsung Bespoke AI Jet Ultra 400W · No verified purchase link currently available
This comparison is built from published specifications and stored representative configurations. The use context, configuration checks, switching costs, and the scope and limits for Cordless Vacuums are documented on the Cordless Vacuums comparison page.