Current exact Bissell option: Bissell FlexClean Robot Vacuum and Mop 4270. Confirm the exact model, configuration, seller, and return terms before ordering.
The fast answer
Choose the Bissell FlexClean 4270 if you want current mapping, vacuuming, mopping, and self-emptying while keeping the dock and purchase decision relatively simple.
Choose the Shark PowerDetect RV2820ZE if mopping is frequent enough that automatic water refilling plus pad washing and drying will save meaningful work. Its NeverTouch Pro base is the reason to pay more, not the Shark name by itself.
Current models, not vague brand families
Older Bissell SmartClean and SpinWave robots do not represent the current lineup. Bissell’s current robot category centers on the FlexClean 4270 family. Shark’s current full-service alternative is the PowerDetect RV2820ZE with NeverTouch Pro base.
Owners considering a cheap older unit should first read the SmartClean 1605 used-buy and parts guide .
| Decision point | Bissell FlexClean 4270 | Shark PowerDetect RV2820ZE |
|---|---|---|
| Navigation | 360React LiDAR | 360-degree LiDAR plus 3D sensor |
| Vacuum claim | 6,000 Pa stated by Bissell | Shark emphasizes detect-and-react cleaning rather than a directly comparable Pa figure |
| Mopping | Onboard mop mode | Active mop with edge extension |
| Debris dock | Self-empty, stated up to 60 days | Self-empty, stated up to 60 days |
| Water and pad care | User-managed | Refills water and washes/dries pad |
| Stated runtime | Up to 180 minutes | Verify current mode-specific runtime and recharge behavior |
| Main cost risk | Bags, filters, pads, formula | Larger service dock plus bags, filters, pads, formula, and odor cartridge |
Manufacturer claims use different tests and assumptions. The table is for feature scope, not a declaration that one suction number proves better real-home pickup.
Why FlexClean is the value choice
Bissell lists LiDAR mapping, app scheduling, 6,000 Pa suction, a floating brush roll designed to shed hair, wet and dry modes, and a self-emptying 3-liter base. The company states up to 180 minutes of runtime and up to 60 days between dock-bin empties.
That covers the functions many households actually need: planned room coverage, fewer onboard-bin empties, and an optional mopping pass. The owner still handles the mop pad, water, and wet-side cleanup. Buyers who mop only occasionally may prefer that simpler ownership system to a full-service dock.
Why PowerDetect costs more
Shark’s RV2820ZE returns to the NeverTouch Pro base to empty debris, refill its water tank, and wash and dry the mopping pad. Shark states up to 30 days of water support and up to 60 days of debris capacity under its assumptions.
It also uses dirt, floor, edge, and stain detection, lifts for thresholds and carpet transitions, and extends the mop toward edges. Those features matter most in a mixed-floor home where the robot mops several times a week. If mopping is rare, the service dock becomes an expensive piece of floor space.
Measure the dock before choosing
Robot diameter is not the main fit constraint. The base needs a stable wall position, outlet access, clear approach, lid or tank access, and room to remove bags and reservoirs. Shark lists the RV2820ZE system at 17.52 by 17.32 by 21.38 inches. Bissell lists the complete FlexClean system at 19 pounds but buyers should confirm the current base dimensions on the exact offer.
Map where the dock will live before comparing sale prices. A system that blocks a doorway, cabinet, or walking line will feel wrong every day.
Consumables and support
Price the first year of bags, filters, edge brushes, main brushes, pads, and compatible cleaning formula. For Shark, include the odor cartridge only if that feature matters. Check whether critical parts are in stock now rather than assuming a new machine has an unlimited supply path.
Both products depend on apps for advanced control. Review account requirements, supported Wi-Fi, phone compatibility, mapping controls, and the household’s tolerance for cloud-connected cleaning before buying.
Verdict
The Bissell FlexClean 4270 is the stronger value for mapped vacuuming, mopping, and self-emptying without a full wet-service dock. The Shark PowerDetect RV2820ZE is the better automation purchase when frequent mopping makes automatic refill and pad care worth the extra cost and space.
Sources checked: Bissell’s current FlexClean 4270 page and robot-vacuum category , plus Shark’s current PowerDetect RV2820ZE page .