# Best Robotic Pool Cleaners: the stierproducts tier list - Source: https://stierproducts.com/categories/robotic-pool-cleaners - Last researched: 2026-08-07T03:39:33.987Z - Products ranked: 16 - Method: https://stierproducts.com/methodology - Reuse: Text, rankings, tier assignments, LP values and verdicts are free to quote and reuse with attribution to stierproducts and a link to the source URL (CC BY 4.0: https://creativecommons.org/licenses/by/4.0/). Product photographs are not covered: they belong to their respective owners and are reproduced to illustrate the product being reviewed. Do not redistribute them under this licence. Autonomous robotic pool vacuums and cleaners; household robot vacuums are separate. ## Summary On the stierproducts robotic pool cleaners board, Dolphin Nautilus CC Plus ranks #1 in S tier, ahead of Aiper Scuba V3 (#2, A tier) and Aiper Scuba S1 (#3, B tier). The board ranks 16 robotic pool cleaners from S (best) to F (avoid), last researched 7 Aug 2026, drawing on 74 outlet citations across the board. Placed in the bottom tiers as ones to avoid: Aiper Seagull SE, Polaris VRX iQ+, Dolphin Explorer E50, and 4 others. ## Ranking | Rank | Product | Brand | Tier | LP | Outlets | Verdict | Page | | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | Dolphin Nautilus CC Plus | Dolphin | S | 960 | 6 | A top recommendation from a respected reviewer with extensive testing experience makes this an excellent choice for reliable cleaning. | https://stierproducts.com/products/dolphin-nautilus-cc-plus | | 2 | Aiper Scuba V3 | Aiper | A | 706 | 7 | The "smartest robot" designation and exclusive coupon code suggest strong value and performance, making it highly desirable. | https://stierproducts.com/products/aiper-scuba-v3 | | 3 | Aiper Scuba S1 | Aiper | B | 630 | 4 | Best overall performance for in-ground pools; simple setup and excellent wall coverage with minimal maintenance. | https://stierproducts.com/products/aiper-scuba-s1 | | 4 | Dreame Z1 Pro | Dreame | B | 617 | 3 | Highest suction (up to 8,000 GPH) and five cleaning modes; excellent for very dirty or large pools. | https://stierproducts.com/products/dreame-z1-pro | | 5 | Dolphin Premier | Dolphin | B | 539 | 4 | No strengths or weaknesses highlighted in the evidence. | https://stierproducts.com/products/dolphin-premier | | 6 | Polaris Freedom Plus | Polaris | B | 511 | 4 | A recognized brand in the category, indicating reasonable quality and widespread use. | https://stierproducts.com/products/polaris-freedom-plus | | 7 | Beatbot Sora 70 | Beatbot | C | 495 | 7 | CNET’s review confirms its functionality, positioning it as a solid option with good overall performance. | https://stierproducts.com/products/beatbot-sora-70 | | 8 | Aiper Scuba X1 Pro Max | Aiper | C | 443 | 3 | Inclusion in a comprehensive testing list suggests it's a viable option within the market. | https://stierproducts.com/products/aiper-scuba-x1-pro-max | | 9 | Beatbot AquaSense 2 Ultra | Beatbot | C | 386 | 5 | A recommended alternative to the higher-end model for those prioritizing value and willing to handle filter cleaning manually. | https://stierproducts.com/products/beatbot-aquasense-2-ultra | | 10 | Aiper Seagull SE | Aiper | D | 333 | 5 | Affordable and good for small pools, but has reported reliability issues and limited warranty. | https://stierproducts.com/products/aiper-seagull-se | | 11 | Polaris VRX iQ+ | Polaris | D | 266 | 3 | No notable praise or endorsement found in the evidence. | https://stierproducts.com/products/polaris-vrx-iq | | 12 | Dolphin Explorer E50 | Dolphin | F | 197 | 4 | Solid mid-range option for medium pools. | https://stierproducts.com/products/dolphin-explorer-e50 | | 13 | Aquabot REVA | Aquabot | F | 179 | 6 | No positive mentions in the provided evidence. | https://stierproducts.com/products/aquabot-reva | | 14 | Dolphin Wave 90i | Dolphin | F | 170 | 7 | Listed as tested by a reputable source, demonstrating its presence and consideration within the category. | https://stierproducts.com/products/dolphin-wave-90i | | 15 | Dolphin Cayman | Dolphin | F | 155 | 2 | A model included in extensive testing, indicating it’s at least functional but lacking standout features. | https://stierproducts.com/products/dolphin-cayman | | 16 | Dolphin Cayman Pro | Dolphin | F | 123 | 4 | No distinguishing praise or advantage noted in the evidence. | https://stierproducts.com/products/dolphin-cayman-pro | ## Flagged as ones to avoid These entered one or more research runs as a product buyers cross-shop but should not buy, rather than as a pick. - Aiper Scuba V3 (#2, A tier): flagged by 1 of 5 runs. - Dolphin Premier (#5, B tier): flagged by 2 of 7 runs. - Beatbot Sora 70 (#7, C tier): flagged by 1 of 7 runs. - Aiper Scuba X1 Pro Max (#8, C tier): flagged by 1 of 3 runs. - Beatbot AquaSense 2 Ultra (#9, C tier): flagged by 2 of 6 runs. - Aiper Seagull SE (#10, D tier): flagged by 1 of 6 runs. - Polaris VRX iQ+ (#11, D tier): flagged by 2 of 3 runs. - Dolphin Explorer E50 (#12, F tier): flagged by 2 of 3 runs. - Aquabot REVA (#13, F tier): flagged by 2 of 6 runs. - Dolphin Wave 90i (#14, F tier): flagged by 1 of 6 runs. - Dolphin Cayman (#15, F tier): flagged by 3 of 5 runs. - Dolphin Cayman Pro (#16, F tier): flagged by 2 of 5 runs. ## Tier meanings - S: Exceptional. Finishes top run after run; capped at 3 slots per category. - A: Excellent. Strongly recommended, beaten only by the very best. - B: Good. A solid choice with real caveats worth knowing. - C: Fair. Acceptable in the right situation, outclassed at its price. - D: Weak. Hard to recommend when better options cost similar money. - F: Avoid. The evidence points you elsewhere. ## How to read this - Each category is researched in four independent runs, one per lens (expert consensus, value, reliability, community pulse). Every run ranks a board of candidates that deliberately includes products buyers cross-shop but should avoid. Placements score on a ranked ladder (LP), and tiers are derived from LP, so no tier is ever assigned by hand. - LP is the product's points on this category's ladder. It is comparable within a category and not across categories. - Outlets is how many distinct outlets are cited for that placement. The per-product page lists each citation, and shows which of their links were fetched and confirmed before publishing. - Nothing is hidden: every product the research placed is on this board.