For hard-floor homes that want a hands-off mop-washing dock from Shark without paying for the PowerDetect models’ sensors.
Amazon $499.99The Shark Stratos 2-in-1 rates 3.9 among self-cleaning dock robot vacuums; the Shark AI Ultra rates 3.8 among vacuum only ones. The Shark AI Ultra costs $81.88 less ($418.11 vs $499.99).
Prices were last checked November 11, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.

A cheap self-emptying LiDAR vacuum for buyers who only need vacuuming.
Amazon $418.11Scores side by side
These two sit in different type classes (self-cleaning dock and vacuum only), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Shark Stratos 2-in-1 | Shark AI Ultra |
|---|---|---|
| Overall rating | 3.9/5 | 3.8/5 |
| Cleaning 30% | 70 not yet tested; estimated from 5 tested Shark robots and the median of the 80 tested robots | 70 not yet tested; estimated from 5 tested Shark robots and the median of the 80 tested robots |
| Value 25% | 78 $500 | 39 $418 |
| Dock 20% | 76 Self-empties the bin, washes the mop | 100 Self-empties the bin |
| Navigation 15% | 65 LiDAR | 65 LiDAR |
| Mopping 10% | 32 Vibrating pad | Not scored |
Specifications
| Shark Stratos 2-in-1 | Shark AI Ultra | |
|---|---|---|
| Vacuum | ||
| Main brush | self-cleaning anti-tangle brushroll | self-cleaning brushroll |
| Mopping | ||
| Mop | Vibrating pad | None |
| Dock | ||
| Dock | Washes mop + empties | Self-empty |
| Self-empties | Yes | Yes |
| Washes mop | Yes | - |
| Hot-water wash | No | - |
| Hot-air drying | No | - |
| Navigation & app | ||
| Navigation | LiDAR | LiDAR |
| Obstacle avoidance | LiDAR-based object detection | LiDAR-based object detection |
| Voice assistants | Alexa, Google Assistant | Alexa, Google Assistant |
| Build | ||
| Run time | - | Up to 2 h |
| Warranty | 1 year | 1 year |
| Released | 2025-12 | 2021-12 |