poolcleanerreviews

Robotic pool cleaner review

Water Tech Pool Blaster CX-300 Cordless Robotic Pool Cleaner

5.8BasicValue 8.1/10
CordlessWallsWaterlineSkims surfaceWi-FiBluetoothNavigation n/a

Spec-based review: scored from Water Tech's published specifications with the same weights as every other robotic cleaner. Not a hands-on test. How we score.

Our take

The Water Tech Pool Blaster CX-300 Cordless Robotic Pool Cleaner is a cordless, battery-powered robotic pool cleaner from Water Tech. It cleans the floor, walls and waterline, navigates in a pattern its maker doesn’t describe, and has no app. A charge lasts up to 150 minutes.

On paper it scores 5.8 out of 10 (basic) against other robotic cleaners. Its strongest areas are cleaning coverage (9.0) and runtime (8.0). Where it gives ground: app & connectivity (2.0) and warranty (4.0). The maker doesn’t say how it navigates.

The best price we found is $309.99 at Water Tech, 31% off its $449.99 list price. The typical robotic cleaner we track costs $899, so this one is cheaper than most. For what it does, its value score is 8.1 out of 10.

If you want mapping navigation, the cheapest we track with it is the Dreame Z1 Cordless Robotic Pool Cleaner at $349.99.

If you want a Wi-Fi app, the cheapest we track with it is the Dreame Z1 Pro Cordless Robotic Pool Cleaner at $399.99.

For about the same money, the WYBOT B1 Cordless Robotic Pool Cleaner scores higher (6.7) at $334.93.

Bottom line: a basic pick for pools with no outlet near the deck, above-ground pools and buyers who want the most features per dollar.

Pros

  • +Climbs the walls and scrubs the waterline, where the scum line forms.
  • +Cordless: no cable to tangle or drape across the pool.
  • +Top-access filter basket: no bag to wash out.
  • +Works in above-ground pools as well as in-ground.

Cons

  • −The maker doesn’t say how it navigates.
  • −No app or remote: settings are on the unit itself.
  • −Filter fineness isn’t stated.
  • −Only a 1-year warranty.

Best for

  • Pools with no outlet near the deck
  • Above-ground pools
  • Buyers who want the most features per dollar

Skip it if

  • You want the fastest full-pool coverage

Where to buy the Pool Blaster CX-300

StoreCheckedBuy
Water Techsale price$309.99−31% $449.99todayView deal

Similar-priced alternatives

6.7

WYBOT B1 Cordless Robotic Pool Cleaner

Wybot · Robotic · value 8.9/10

CordlessWallsWaterlineSkims surfaceWi-Fi?BluetoothNavigation n/a
  • +Climbs the walls and scrubs the waterline, where the scum line forms.
  • +Cordless: no cable to tangle or drape across the pool.

$334.93

at WYBOT−16%

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8.6

Dreame Z1 Cordless Robotic Pool Cleaner

Dreame · Robotic · value 10.0/10

CordlessWallsWaterlineSkims surfaceWi-FiBluetoothMapping nav
  • +Maps the pool, using PoolSense fusion detection (ultrasound + 3D structured light), stores up to 3 maps, so it covers the floor methodically instead of bouncing around.
  • +Climbs the walls and scrubs the waterline, where the scum line forms.

$349.99

at Home Depot

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8.7

Dreame Z1 Pro Cordless Robotic Pool Cleaner

Dreame · Robotic · value 9.8/10

CordlessWallsWaterlineSkims surfaceWi-FiBluetoothMapping nav
  • +Maps the pool, using PoolSense fusion detection (ultrasound + 3D structured light), stores up to 3 maps, so it covers the floor methodically instead of bouncing around.
  • +Climbs the walls and scrubs the waterline, where the scum line forms.

$399.99

at Home Depot

Read review

Compare the Pool Blaster CX-300 with any cleaner →

Head to head: Z1 vs Pool Blaster CX-300 · Pool Blaster CX-300 vs B1 · Pool Blaster CX-300 vs A1