Polaris ERA 842 Smart Robotic Pool Cleaner
- 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
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What the Polaris ERA 842 does well
SMART APP CONTROL: Control your cleaner on the go! Set a cleaning schedule, start/stop a pool vacuum cleaning cycle, view the cycle timer, choose from two cleaning modes (Floor or Floor/Wall), initiate Easy Lift retrieval, and receive troubleshooting all within the app.
POWERFUL POOL CLEANING: Cleans pool floor and walls with front and back scrubbing brushes, agile dual-traction motors, and Cyclonic Vacuum Technology to effectively capture dirt, sustain suction, and deliver enhanced wall climbing on any inground pool surface.
EASY TO REMOVE, EASY TO CLEAN: With the touch of a button, the Easy Lift Removal System drives the pool cleaner to the waterline and quickly drains water for lightweight removal. The large-capacity debris canister allows for longer pool cleaning sessions and features an easy-access design for mess-free emptying - simply remove, shake, and spray.
INCLUDES PREMIUM CADDY & COVER: Move and protect your robotic pool cleaner with the included transport caddy and protective cover to shield the cleaner from the elements and extend its lifespan and performance.
POLARIS POOL CLEANERS: For more than 50 years, Polaris has been known worldwide for its quality and premium cleaning power. Focused on premium engineering, rugged construction, and reliability, Polaris pool cleaners are built to last and are proven to clean where others can't.
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.
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 |
| Installation Type | robotic |
| Item Dimensions L x W x H | 17"L x 16"W x 12"H |
| Model Number | FERA842 |
| Manufacturer Part Number | FERA842 |
| GTIN | 052337328371 |
Polaris ERA 842 vs the rest of the Polaris range
Every Polaris cleaner we track, side by side. Prices are from our most recent check.
| Model |
Polaris
Polaris P70
$499.00
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|
Polaris
Polaris Pixel
$549.00
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|
Polaris
Polaris P724
$599.00
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|
Polaris
Polaris Freedom SC
$799.00
View details
|
Polaris
Polaris 8050 Sport
$800.92
View details
|
Polaris
Polaris ERA 820
$895.00
View details
|
Polaris
Polaris 9550 Sport
$991.21
View details
|
Polaris
Polaris 9650iQ Sport
$999.00
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|
Polaris
Polaris 9450 Sport
$999.00
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|
You're viewing
Polaris ERA 842
$1099.00
View details
|
Polaris
Polaris PCX 868 iQ
$1149.00
View details
|
Polaris
Polaris Freedom
$1149.00
View details
|
Polaris
Polaris Freedom Plus
$1399.00
View details
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Power | Corded | Cordless (battery) | Corded | Cordless (battery) | Corded | Corded | Corded | Corded | Corded | Corded | Corded | Cordless (battery) | Cordless (battery) |
| Pool size | Above-ground & simple in-ground | In-ground | In-ground | 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 up to 50 ft | In-ground | In-ground up to 50 ft | In-ground up to 50 ft | In-ground up to 50 ft |
| Coverage | Floor & cove | Floor | Floor, walls & waterline | Floor & walls | Floor, walls & tile line | Floor & walls | Floor, walls & waterline | Floor, walls & waterline | Floor, walls & tile line | Floor & walls | Floor, walls & waterline | Floor, walls & waterline | Floor, walls & waterline |
| Control | Touch | One-touch button | Touch control | iAquaLink app | Touch | Push button | Motion-sensing remote | iAquaLink app | Touch control | Smart app + push button | iAquaLink app + control unit | iAquaLink app + on-unit buttons | Hand-held remote + iAquaLink app |
| Filtration | Cyclonic vacuum, transparent lid | Cyclonic canister, transparent lid | Cyclonic vacuum, transparent lid | Filter canister | Cyclonic vacuum, 4 L canister | Cyclonic vacuum, 4 L canister | Vortex Vacuum, 5 L canister | Vortex Vacuum, 5 L canister | Vortex Vacuum, 5 L canister | Cyclonic vacuum, large canister | Large canister, transparent lid | Filter canister | Filter canister |
| Cycle / runtime | As little as 2 hours | Single cycle | As little as 2.5 hours | 2 hours or less | Standard | 2.5 hours | 5 cleaning modes | Scheduled or on demand | As little as 1.5 hours | Two modes (floor / floor + wall) | Programmable | 2.5 hours or less | About 2.5 hours |
| Weight | 22 lb | — | 22 lb | 26.2 lb | — | 35.9 lb | 43.6 lb | — | — | — | 38.8 lb | 32 lb | 40.8 lb |
| Amazon rating | 3.7 (38) | 3.8 (50) | 4.2 (44) | 3.7 (44) | 3.8 (298) | 3.6 (49) | 3.8 (1354) | 3.7 (636) | 4 (628) | 4.6 (28) | 4.2 (72) | 3.6 (207) | 4.2 (71) |
| Best for | Above-ground pools with a cove | The simplest cordless option Polaris makes | The lightest, most affordable Polaris robot | 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 | A fast 1.5-hour cycle on mid-size pools | The best-reviewed Polaris in the current range | App control with easy one-button retrieval | Cordless cleaning at a lower price than the Freedom Plus | Cordless cleaning with genuine remote control |
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.
Cleaners we sell and support directly
We don't stock the Polaris ERA 842. These are the closest cleaners we do — bought from us, supported by us.
Pair it with ICO — the smart water monitor
Your robot handles the floor, walls, and waterline. ICO watches the water itself — analyzing it 24/7 and telling you exactly what to add, in what amount, at the right time.
- Measures pH, ORP, and water temperature every hour
- Personalized treatment recommendations in the iOS & Android app
- Anticipates water changes with AI and local weather data, minimizing chemical use
- Versions for chlorine/bromine and salt water pools (salt also tracks TDS)
ICO - The Smart Pool Water Monitor
Real-time water analysis with personalized dosing recommendations — so the water stays as balanced as the pool is clean.