iRobot
iRobot Roomba j9+
$899
Released 2023
Best Robot Vacuums · head-to-head
A sourced, side-by-side comparison. Shark PowerDetect NeverTouch Pro (RV2820ZE) is cheaper at $599.99. Every spec and price links to its source.
iRobot
$899
Released 2023
Shark
$599.99Cheaper
Released 2024
On the specs we track, they're closely matched. The Shark PowerDetect NeverTouch Pro (RV2820ZE) is the cheaper at $599.99.
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | $899 | $599.99 |
| Brand | iRobot | Shark |
| Released | 2023 | 2024 |
| Suction (Pa) | — | — |
| Mapping | Imprint Smart Mapping (camera-based PrecisionVision Navigation) | 360° LiDAR (with 3D sensor) |
| Self empty | Yes | Yes |
| Mopping | No | Yes |
| Battery min | — | 120 |
| Obstacle avoidance | PrecisionVision Navigation — recognizes and avoids pet waste, cords, shoes, socks | 3D sensor + 360° LiDAR — detects and avoids objects and furniture |
| App | iRobot Home | — |
| Release | 2023 | 2024 |
Sources — iRobot Roomba j9+: irobot.com (verified 2026-06-15). Shark PowerDetect NeverTouch Pro (RV2820ZE): sharkninja.com (verified 2026-07-07).
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Only one whitelisted tester (TechHive) reviewed the exact vacuum-only Roomba j9+, hands-on with no lab bench numbers; it earned Editors' Choice for strong cleaning and obstacle avoidance. Other major reviews (Tom's Guide, TechRadar, Engadget) cover the mop-hybrid Combo j9+, a different config, so were excluded here. (1 sourced review.)
Praised: Excellent obstacle detection and avoidance, including pet waste; Strong vacuuming pickup, including heavy pet hair without roller tangling; Dirt Detective prioritizes the dirtiest rooms automatically.
Flagged: PrecisionVision navigation depends on ambient light (won't clean in the dark); Many app controls buried in sub-menus.
No sourced tester review yet.