- Cleans
- Floor
- Power
- Corded AC
- Runtime
- Auto cycles of 1
- Max pool
- Up to 1,614 sq ft
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Chasing Hydro 4 SE
Corded pool robot with a 40 ft cable and 3 hour auto cycles
Researched by Riley Hart · updated Nov 1, 2026
Is the Chasing Hydro 4 SE worth it? A simple corded robot for owners who want no charging and a set 1 to 3 hour cycle. It costs $449 as of Nov 4, 2026, and 2 independent reviewers tested it.
A simple corded robot for owners who want no charging and a set 1 to 3 hour cycle. Independent testing is thin: one hands on blog review found it picked up leaves and silt well but said its path was not always efficient and corners and steps still needed brushing. Skip it if you dislike managing a cable or want app control while the robot is underwater.
Best for: medium pools where a cord is not a problem. Skip if: you want app control while it is underwater.
Specs
- Pool types
- In ground and above ground, 1.6 to 9.8 ft deep; salt up to 5,000 ppm (Chasing and RobotShop)
- Cleans
- Floor, walls and waterline (Chasing says)
- Power
- Corded AC, 150 W peak, 39.4 ft (12 m) cable per the spec table; box contents say 40 ft (Chasing)
- Runtime
- Auto cycles of 1, 2 or 3 h; wall only 2 h; floor only 2 h; Ultra Clean 3 h (Chasing says)
- Charge time
- None needed, corded
- Filter
- 180 micron dual zone basket, 4.1 L; optional 50 micron basket (Chasing says)
- Max pool size
- Up to 1,614 sq ft (Chasing says)
- App
- Chasing app with scheduled start; no underwater control (Chasing comparison table); Happy TechFam found Bluetooth drops once submerged
3 year cost of ownership
- Robot
- $449
- Total
- $449
No battery to replace. Chasing sells a 50 micron fine basket, but no price was shown on pages we fetched.
Status and safety
- US availability
- ● On sale
- Recalls
- ● No Chasing robot recall in the CPSC database as of Nov 4, 2026. Checked daily.
- FCC authorized
- Not checked
- Company
- ● Active
- Warranty
- ● 2 years
Price history
Tracked dailyWhere to buy
- Amazon
- See price →
- Chasing US store
- $449 →
Affiliate links. We may earn a commission. It never changes our score. Disclosure
Pros
- No battery to charge or wear out
- Fixed 1, 2 or 3 hour auto cycles
- Large 4.1 L basket with optional fine filter
- 2 year warranty
Cons
- Few independent tests yet
- Cable to manage
- No app control underwater
- Reviewer saw uneven paths and missed corners
What independent reviewers found
- Hands on long term use. Picked up large leaves, twigs, sand and silt, and walls and waterline looked clean. Path did not always follow the S pattern, some areas got covered twice, auto docking was not always reliable, and corners and steps needed occasional brushing. Bluetooth dropped underwater. Site earns Amazon affiliate fees.
- Happy TechFam (blog)
- Claims two weeks of daily use in an 18 by 36 ft gunite pool with about 1 h 45 min cycles and under 3 kWh total power use. No byline, several unsourced and conflicting figures, and affiliate links, so treat it as weak evidence.
- Greattips3s (blog)
Spec history
Checked dailyNo spec changes since we started tracking on Nov 2, 2026.
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Questions buyers ask
How long is the Hydro 4 SE cable?
Chasing's spec table says 39.4 ft (12 m), and its box contents list a 40 ft cable.
Can I control it from the app while it cleans?
No. Chasing's comparison table lists underwater control as not supported, and a reviewer found Bluetooth drops once it is submerged.
Does it work in saltwater pools?
Chasing's spec sheet on RobotShop lists salt up to 5,000 ppm.
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