Aiper Scuba X1 Pro Max vs Dolphin (Maytronics) Sigma
Researched by Riley Hart · prices checked Oct 26, 2026
As of Oct 26, 2026, the Aiper Scuba X1 Pro Max costs $1,700 and the Dolphin (Maytronics) Sigma costs $2,999, so the Aiper Scuba X1 Pro Max is $1,299 cheaper. Pick the Aiper Scuba X1 Pro Max for large in-ground pools wanting skimming too. Pick the Dolphin (Maytronics) Sigma for set and forget in-ground pools.
- Cleans
- Floor
- Runtime
- Up to 300 min floor
- Max pool
- Up to 3,230 sq ft
Aiper's do it all model covers floor, walls, waterline and surface, with a big 5 L basket and a 3 year warranty. Digital Trends called it one of the best cleaners on the market, while The Pool Nerd found weaker suction than top corded robots. It suits big in-ground pools where you want no cord, but it is heavy to lift out.
Full Aiper Scuba X1 Pro Max review →- Cleans
- Floor
- Power
- Corded
- Runtime
- 2.5 h cycle
- Max pool
- 50 ft long
The pick for in-ground owners who want the most automated corded Dolphin: app control, a weekly timer and strong waterline scrubbing with no battery to wear out. It is the most expensive robot on this list and does not skim the surface. Skip it if you do not need the app; the Premier cleans similarly for less.
Full Dolphin (Maytronics) Sigma review →Side by side
| Aiper Scuba X1 Pro Max | Dolphin (Maytronics) Sigma | |
|---|---|---|
| Price | $1,700 | $2,999 |
| 3 year cost | $1,700 | $3,099 |
| Our score | Not scored yet | Not scored yet |
| Rank in Pool | #15 | #17 |
| Status | on sale | on sale |
| Warranty | 3 years | 3 years |
| Pool types | In-ground; concrete, fiberglass, vinyl, tile | In-ground; rectangular, round, free shape, kidney |
| Cleans | Floor, walls, waterline and surface skimming | Floor, walls, waterline |
| Power | Cordless (battery capacity not published) | Corded |
| Runtime | Up to 300 min floor cleaning, 600 min surface skimming | Default 2.5 h cycle; no battery |
| Charge time | 4 h | None (corded) |
| Filter | 5 L top load basket, 180 micron main filter plus 3 micron ultra fine filter | Extra large multi layer top load basket; fine filter plus ultra fine kit in box |
| Max pool size | Up to 3,230 sq ft, 100 ft long | Pools up to 50 ft long |
| App | Aiper app; underwater control needs the optional HydroComm Pro | MyDolphin Plus app over Wi-Fi with scheduling and automation |
| Suction | 8,500 gph | 4,500 gph (maker) |
| Weight | About 33 lb dry | 24.63 lb |
| Warranty | 3 years | 3 years |
| Timer | n/a | Weekly timer |
| Best for | large in-ground pools wanting skimming too | set and forget in-ground pools |
| Skip if | you cannot lift about 33 lb | you do not care about app control |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Aiper Scuba X1 Pro Max
- Digital Trends: Editors' Choice. Floor and wall cleaning was about 90% effective and it never got stuck, with stronger suction than a Beatbot AquaSense Pro; skimming underperformed and it climbed only 0.5 to 1 inch above the waterline. Source
- The Pool Nerd: Rated Pool Nerd Disapproved: measured weaker suction than top corded robots, fine sediment remained after several passes, and it needed 4 to 5 hours of charging after each session. Source
Dolphin (Maytronics) Sigma
- The Pool Nerd: Ranked it the best robot the site has tested; the center brush rolled over the main drain every time in weeks of daily testing and its waterline cleaning was the strongest of any Dolphin tried. Affiliate site with links to Dolphin dealers. Source
Pros and cons
Aiper Scuba X1 Pro Max
Pros
- Cleans floor, walls, waterline and surface
- Up to 10 h in skim mode
- Large 5 L basket with ultra fine filter
- 3 year warranty
Cons
- Heavy, about 33 lb dry
- Digital Trends found skimming weak
- Underwater app control costs extra
- Brand has two prior CPSC fire recalls on other models
Dolphin (Maytronics) Sigma
Pros
- Weekly timer means no daily handling
- App control and scheduling over Wi-Fi
- Strong waterline cleaning per The Pool Nerd
- 3 year warranty
- No battery to degrade
Cons
- Highest price here
- Cord to manage
- In-ground only
- Center drain brush is an extra add on
Questions buyers ask
Which is better, the Aiper Scuba X1 Pro Max or the Dolphin (Maytronics) Sigma?
Pick the Aiper Scuba X1 Pro Max for large in-ground pools wanting skimming too. Pick the Dolphin (Maytronics) Sigma for set and forget in-ground pools.
Which is cheaper?
The Aiper Scuba X1 Pro Max at $1,700, versus $2,999 for the Dolphin (Maytronics) Sigma, checked Oct 26, 2026. Over 3 years with running costs: $1,700 vs $3,099.
What is the difference between the Scuba X1 Pro Max and the Sigma?
Pool types: In-ground; concrete, fiberglass, vinyl, tile on the Scuba X1 Pro Max, In-ground; rectangular, round, free shape, kidney on the Sigma. Cleans: Floor, walls, waterline and surface skimming on the Scuba X1 Pro Max, Floor, walls, waterline on the Sigma. Power: Cordless (battery capacity not published) on the Scuba X1 Pro Max, Corded on the Sigma.
Also consider
See all ranked →More comparisons
- Aiper Scuba V3 vs Aiper Scuba X1 Pro Max
- Aiper Scuba X1 Pro Max vs Dolphin (Maytronics) Premier
- Aiper Scuba S1 vs Aiper Scuba X1 Pro Max
- Aiper Scuba X1 Pro Max vs Polaris VRX iQ+
- Aiper Scuba X1 Pro Max vs Polaris Freedom Plus
- Aiper Scuba X1 Pro Max vs Beatbot AquaSense 2 Ultra
- Dolphin (Maytronics) Premier vs Dolphin (Maytronics) Sigma
- Beatbot AquaSense 2 Ultra vs Dolphin (Maytronics) Sigma
All robotic pool cleaners, ranked
See the ranking →Affiliate links. We may earn a commission. It never changes our score. Disclosure