Polaris ERA 820 Robotic Pool Cleaner
- No app, no pairing — press start and walk away
- 60 ft cable with a low-torque watertight swivel
- Cyclonic Vacuum Technology sustains suction while climbing
- Large 4-litre debris canister for longer runs
- Transport caddy and protective cover included
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What the Polaris ERA 820 does well
60-Foot Cable with Tangle-Reducing Swivel: The 60-foot cable provides uninterrupted cleaning across pools up to 50 feet, featuring a low-torque, watertight swivel to prevent cord entanglements and ensure comprehensive coverage from floors to walls.
Simple Plug-and-Play Operation: Just plug it in, press start, and let it clean your floor and walls in 2.5 hours! With its powerful suction and scrubbing action, your pool will be swim-ready in no time.
Premium Transport Caddy and Cover: Move and protect your cleaner with the included transport caddy and protective cover, shielding it from the elements to extend its lifespan and maintain top performance.
Cyclonic Vacuum Technology: Rid your pool of dirt and debris with powerful cyclonic cleaning action that sustains suction and enhances wall climbing on any pool surface.
Large 4-Liter Debris Canister: The large-capacity canister allows for longer, uninterrupted cleaning sessions and features an easy-access design for quick emptying — simply remove, shake, and spray.
Polaris: For more than 50 years, Polaris has been known worldwide for its quality and best-in-class automatic pool cleaners.
The ERA 820 is the ERA 842 with the smart features removed and the price cut accordingly. Same cyclonic vacuum, same caddy and cover, same 2.5-hour cycle — you give up app scheduling and get a button instead.
Deliberately simple
Plug it in, press start, come back in 2.5 hours. For a lot of pool owners that's the entire feature set they'll ever use, and skipping the app means there's no account, no firmware update, and no Wi-Fi range problem at the far end of the yard.
The cable and swivel
60 ft covers pools up to 50 ft with slack to spare. The swivel is low-torque and watertight, which is what keeps the cable from corkscrewing itself into a knot over repeated cycles — a genuine weak point on cheaper corded robots.
Capacity
The 4-litre canister is generous for this price band. Combined with cyclonic separation, it means a leafy pool doesn't choke the machine halfway through a cycle.
Polaris ERA 820 specs
| Model Name | ERA 820 |
|---|---|
| Color | Blue |
| Power Source | ac |
| Control Method | Push Button |
| Capacity | 4 liters |
| Model Year | 2025 |
| Model Number | FERA820 |
| Manufacturer Part Number | FERA820 |
| Item Dimensions L x W x H | 17"L x 16"W x 12"H |
| Item Weight | 35.9 pounds |
| Hose Length | 60 feet |
| Installation Type | robotic |
| GTIN | 052337327152 |
Polaris ERA 820 vs the rest of the Polaris range
Every Polaris cleaner we track, side by side. Prices are from our most recent check.
| Model |
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Polaris P70
$499.00
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Polaris
Polaris Pixel
$549.00
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Polaris P724
$599.00
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Polaris
Polaris Freedom SC
$799.00
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|
Polaris
Polaris 8050 Sport
$800.92
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You're viewing
Polaris ERA 820
$895.00
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|
Polaris
Polaris 9550 Sport
$991.21
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Polaris
Polaris 9650iQ Sport
$999.00
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Polaris
Polaris 9450 Sport
$999.00
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|
Polaris
Polaris ERA 842
$1099.00
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|
Polaris
Polaris PCX 868 iQ
$1149.00
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Polaris
Polaris Freedom
$1149.00
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|
Polaris
Polaris Freedom Plus
$1399.00
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|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 820 FAQ
Does the ERA 820 have an app?
No. It's push-button operation only — that's the main difference from the ERA 842.
How long is a cleaning cycle?
About 2.5 hours for floor and walls.
What size pool does it suit?
In-ground pools up to 50 ft, using the 60 ft swivel cable.
Cleaners we sell and support directly
We don't stock the Polaris ERA 820. 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.