Polaris ERA 842
$1099 See It on Amazon
Polaris

Polaris ERA 842 Smart Robotic Pool Cleaner

4.5 32 Amazon ratings
  • Highest-Rated Polaris Robot In The Current Lineup
  • Cyclonic Vacuum Technology Holds Suction As The Canister Fills
  • Dual-Traction Motors For Agile Wall Climbing
  • Easy Lift Drives It To The Waterline And Drains It
  • Premium Transport Caddy And Protective Cover Included
$1099

Last confirmed price.

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From Polaris

See the Polaris ERA 842 in Action

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ERA 842 Pool Cleaner Fluidra · 0:30
What It Does Best

Why the Polaris ERA 842 Stands Out

Cyclonic Suction Vortex

Maintains steady intake velocity even when the debris canister fills with wet leaves.

App + Push-Button Control

Run cycles immediately from the control box or manage modes from the companion app.

Dual Cleaning Modes

Choose quick Floor-Only sweeps or full Floor & Wall climbing cycles.

Large Top-Access Canister

Lift the rigid debris basket straight out the top and spray clean with a garden hose.

Front Scrubbing Roller

Agitates dirt and algae loose ahead of the wide vacuum mouth.

Inground Surface Safe

High-traction tires roll smoothly across concrete, fiberglass, pebble, and vinyl.

Our Take

Who the Polaris ERA 842 Is Really For

Best For

The best-reviewed Polaris in the current range

The Bottom Line

Polaris's modernized mid-range corded entry with app control and strong leaf pickup—note it focuses on floor and walls rather than dedicated waterline scrubbing.

The ERA 842 is the model to look at first if you're shopping Polaris on reputation rather than price — it carries the strongest review average of any current Polaris robot, and it ships with the caddy and cover that most brands charge extra for.

Cyclonic Vacuum Technology

Conventional robots lose suction as debris packs against the filter. The cyclonic system spins incoming water so heavier debris separates out and drops into the canister instead of matting against the media. The practical result is that suction at minute 120 is much closer to suction at minute 5 — which also helps it hold grip while climbing.

App control

The app handles scheduling, start/stop, the cycle timer, and mode selection between floor-only and floor-plus-wall cleaning. Floor-only is the one people underuse: on a pool that's mostly picking up settled dust, it finishes faster and puts less wear on the drive system.

What's in the box

A premium transport caddy and a protective cover. Storing a robot on its caddy under a cover rather than on wet concrete is the single cheapest thing you can do to extend its life, so having both included is a real cost saving.

Another model worth a look

Want true lateral tile-waterline scrubbing and ultra-fine pleated filters in the same price range? Compare our available from Pool Robots Dolphin Explorer E30 Wi-Fi or Dolphin Quantum.

Specifications

Polaris ERA 842 Specs

Model Name FERA842
Color Blue
Power Source Electric
Other Special Features of the Product Smart App Control, Easy Lift Removal, Agile Wall Climbing
Control Method App
Item Dimensions L x W x H 17"L x 16"W x 12"H
Installation Type robotic
Number of Items 1
Item Highlight App-Controlled with Agile Wall Climbing, Dual Scrubbing Brushes, and Cyclonic Vacuum Technology
Model Number FERA842
Manufacturer Part Number FERA842
GTIN 052337328371

Specifications come from the manufacturer or Amazon listing.

Brand Lineup Comparison

Polaris ERA 842 vs. the Polaris Range

See where this model sits in the Polaris lineup—and whether spending more actually gets you anything useful.

Model Polaris Polaris Spabot Polaris Spabot
$399
View details 		Polaris Polaris P70 Polaris P70
$499
View details 		Polaris Polaris Pixel Polaris Pixel
$549
View details 		Polaris Polaris P724 Polaris P724
$599
View details 		Polaris Polaris ERA 710 Polaris ERA 710
$599
View details 		Polaris Polaris Freedom SC Polaris Freedom SC
$799
View details 		Polaris Polaris 8050 Sport Polaris 8050 Sport
$800.92
View details 		Polaris Polaris ERA 820 Polaris ERA 820
$899
View details 		Polaris Polaris 9550 Sport Polaris 9550 Sport
$999
View details 		Polaris Polaris 9650iQ Sport Polaris 9650iQ Sport
$999
View details 		You're viewing Polaris ERA 842 Polaris ERA 842
$1099
View details 		Polaris Polaris PCX 868 iQ Polaris PCX 868 iQ
$1149
View details 		Polaris Polaris 9450 Sport Polaris 9450 Sport
$1149.96
View details 		Polaris Polaris Freedom Polaris Freedom
$1199
View details 		Polaris Polaris Freedom Plus Polaris Freedom Plus
$1399
View details 		Polaris Polaris VRX iQ+ Polaris VRX iQ+
$1499
View details
Power Cordless (49 Wh battery) Corded Cordless (battery) Corded Corded Cordless (battery) Corded Corded Corded Corded Corded Corded Corded Cordless (battery) Cordless (battery) Corded
Pool size In-ground spas & above-ground hot tubs Above-ground & simple in-ground In-ground In-ground In-ground up to 36 ft In-ground In-ground up to 40 ft In-ground up to 50 ft In-ground up to 60 ft In-ground up to 60 ft In-ground In-ground up to 50 ft In-ground up to 50 ft In-ground up to 50 ft In-ground up to 50 ft In-ground; 70 ft cable
Coverage Floor, benches, curves & contoured seating Floor & cove Floor Floor, walls & waterline Floor & walls Floor & walls Floor, walls & tile line Floor & walls Floor, walls & waterline Floor, walls & waterline Floor & walls Floor, walls & waterline Floor, walls & tile line Floor, walls & waterline Floor, walls & waterline Floor, walls & waterline
Control On-robot slide button Touch One-touch button Touch control Push button iAquaLink app Touch Push button Motion-sensing remote iAquaLink app Smart app + push button iAquaLink app + control unit Touch control iAquaLink app + on-unit buttons Hand-held remote + iAquaLink app iAquaLink app
Filtration 1 L easy-clean canister Cyclonic vacuum, transparent lid Cyclonic canister, transparent lid Cyclonic vacuum, transparent lid Easy-clean canister Filter canister Cyclonic vacuum, 4 L canister Cyclonic vacuum, 4 L canister Vortex Vacuum, 5 L canister Vortex Vacuum, 5 L canister Cyclonic vacuum, large canister Large canister, transparent lid Vortex Vacuum, 5 L canister Filter canister Filter canister Large illuminated canister
Cycle / runtime 60 minutes As little as 2 hours Single cycle As little as 2.5 hours 2.5 hours 2 hours or less Standard 2.5 hours 5 cleaning modes Scheduled or on demand Two modes (floor / floor + wall) Programmable As little as 1.5 hours 2.5 hours or less About 2.5 hours Seven cleaning modes
Weight — 22 lb — 22 lb — 26.2 lb — 35.9 lb 43.6 lb — — 38.8 lb — 32 lb 40.8 lb 44 lb
Amazon rating 2.4 (57) 3.7 (37) 3.7 (52) 3.8 (47) 4 (25) 3.7 (50) 3.8 (301) 3.5 (57) 3.9 (1358) 3.8 (639) 4.5 (32) 4.1 (85) 4 (629) 3.6 (214) 4.2 (78) 3.8 (191)
Best for Hands-free cleaning in spas and hot tubs Above-ground pools with a cove The simplest cordless option Polaris makes The lightest, most affordable Polaris robot Smaller in-ground pools needing floor and wall coverage The lightest cordless Polaris Mid-size pools up to 40 ft Plug-and-play simplicity with no app to manage Large pools up to 60 ft Large pools where you also want app scheduling The best-reviewed Polaris in the current range App control with easy one-button retrieval A fast 1.5-hour cycle on mid-size pools Cordless cleaning at a lower price than the Freedom Plus Cordless cleaning with genuine remote control Large pools needing app control and multiple targeted modes
Common Questions

Polaris ERA 842 FAQ

Does the ERA 842 clean the waterline?

It cleans the floor and climbs walls. Polaris positions the waterline-focused cleaning on other models — check the current listing detail before buying if the waterline is your priority.

Is a caddy included?

Yes, both a premium transport caddy and a protective cover ship in the box.

How does the ERA 842 differ from the ERA 820?

The 842 adds smart app control and dual-traction motors. The 820 is the simpler plug-and-play version at a lower price.

ERA 842 vs. ERA 820—what's the difference?

The ERA 842 adds smart app control and dual cleaning modes over the push-button-only Polaris ERA 820.

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