- Cleans
- Floor
- Runtime
- Cycles of 1.5
- Max pool
- Up to 50 ft pool length
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Dolphin Nautilus EON 100
Cordless Dolphin with a fine filter and strong waterline reach
Researched by Riley Hart · updated Nov 12, 2026
Is the Dolphin Nautilus EON 100 worth it? A cordless Dolphin that The Hook Up picked for pools with sand, silt or pollen, thanks to its fine filter, big bin and best in test waterline reach. It costs $599 as of Nov 12, 2026, and 2 independent reviewers tested it.
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Pros
- Fine 60 to 70 micron filter
- Best waterline reach in The Hook Up test
- Cleans steps and shallow ledges
- No cord to tangle
Cons
- Only a 1 year retail warranty
- Must be lifted out to charge, about 23 lb
- App drops connection underwater
- Rear exhaust stirred leaves near walls in testing
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A cordless Dolphin that The Hook Up picked for pools with sand, silt or pollen, thanks to its fine filter, big bin and best in test waterline reach. The Pool Nerd found it cleans well but is not hands off, since every charge means fishing it out, and the retail warranty is just 1 year. At the current sale price it is a solid cordless pick; buy a corded Dolphin if you want true set and forget cleaning.
Best for: pools with sand, silt or pollen. Skip if: you want hands off daily cleaning.
Specs
- Pool types
- In-ground pools up to 50 ft long; reaches ledges as shallow as 8 in (Maytronics)
- Cleans
- Floor, walls, waterline, steps, sun ledge and corners (Maytronics); The Hook Up measured 100% floor, 74% walls and 66% stairs and bench, with about 3 in of waterline reach, best in its test
- Power
- Cordless battery; capacity not published (Maytronics)
- Runtime
- Cycles of 1.5, 2 or 2.5 h, and UltraRun splits one charge across up to a week of cycles (Maytronics); The Hook Up measured 2 h 38 min
- Filter
- Fine filter kit with top access and a full filter indicator (Maytronics); The Hook Up lists a 60 micron primary filter, The Pool Nerd says 70 micron
- Max pool size
- Up to 50 ft pool length (Maytronics)
- App
- Maytronics One over Wi-Fi; works only when the robot is above water (Maytronics, The Pool Nerd)
- Weight
- 22.05 lb (Maytronics); about 23 lb empty and 56 lb full of water (The Hook Up)
3 year cost of ownership
- Robot
- $599
- Total
- $599
No sourced replacement part prices yet. Every recharge means pulling the robot out with a hook and carrying it, per The Pool Nerd.
Status and safety
- US availability
- ● On sale
- Recalls
- ● No Dolphin robot recall in the CPSC database as of Nov 11, 2026. Checked daily.
- FCC authorized
- Not checked
- Company
- ● Active
- Warranty
- ● 1 year
Price history
Tracked dailyTracking started Nov 12, 2026 at $599.
Each day adds a point. Turn on a price alert to hear about drops.
Where to buy
- Amazon
- See price →
- Maytronics US store
- $599 →
Affiliate links. We may earn a commission. It never changes our score. Disclosure
What independent reviewers found
- In an 11 robot test it ran 2 h 38 min and covered 100% of the floor, 74% of walls and 66% of stairs and bench. Best waterline reach at about 3 in, zero particles leaked, but its rear exhaust stirred leaves near walls. Picked as the premium choice for sand, silt and pollen.
- The Hook Up
- Tested in a pool. Said it cleans floor, walls, waterline and ledges well with good build quality, but SmartMap missed some spots and charging means removing and carrying the robot each time. Rated Pool Nerd Disapproved in favor of corded Dolphins.
- The Pool Nerd
Spec history
Checked dailySpec tracking starts with the next daily check.
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Questions buyers ask
How long does it run?
Maytronics offers 1.5, 2 or 2.5 h cycles. The Hook Up measured 2 h 38 min on one charge.
Does it clean the waterline?
Yes. The Hook Up measured about 3 in of waterline reach, the best of the robots it tested.
Can I check it in the app while it cleans?
No. Maytronics says the app works when the robot is above the waterline, and The Pool Nerd found it loses connection underwater.
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