Quick Answer: Husqvarna EPOS (Exact Positioning Operating System) is a satellite-based RTK-GNSS navigation system that lets an Automower run without a buried perimeter wire, holding roughly 1-2 centimeter accuracy on a virtual boundary drawn in the app. It ships on the residential iQ and NERA lines, the wire-free 550 EPOS, and the commercial CEORA. The catch most marketing skips: unless your address falls inside Husqvarna’s limited Cloud coverage network, “wire-free” still means buying a physical EPOS reference station, which Husqvarna’s own US store prices at $899.99 — a real added cost on top of the mower.
This site has referenced EPOS in dozens of individual Automower reviews — it is the single most-mentioned navigation term across our Husqvarna coverage — but never explained what the acronym actually means, how the hardware works, or what it costs beyond the mower’s own sticker price. Here’s the full picture in one place.
How EPOS actually works
EPOS replaces a buried boundary wire with RTK (Real-Time Kinematic) GNSS positioning — a satellite-navigation technique that corrects standard GPS’s multi-meter error down to centimeter level by comparing the mower’s raw satellite signal against a correction signal from a known, fixed point. Per Husqvarna’s own product documentation, that correction gets the mower’s position accurate to about 1-2 centimeters within seconds of establishing a fix, which is precise enough to hold a mowing line tight around a flower bed, pond, or property line without ever touching a physical wire.
The correction signal has to come from somewhere, and that’s the part Husqvarna’s marketing tends to gloss over. There are two ways to get it:
| Setup path | What it requires | Extra hardware cost |
|---|---|---|
| Husqvarna Cloud network | Cellular or Wi-Fi coverage in a supported area; no local station to install | $0 (where available) |
| Personal EPOS reference station | Open sky view (135° cone) + a power outlet within range of the mowing area | $899.99, per Husqvarna's US store |
Husqvarna Cloud coverage is regional and not guaranteed at every address, so plenty of buyers who assume “wire-free” means “no extra hardware” end up installing a reference station anyway. Our Husqvarna Automower 550 review already flagged that the wire-free 550 EPOS costs substantially more than the wire-based 550 — the $899.99 reference station is a real chunk of that gap.
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Setting up a new mower usually means a queue of small accessory orders too — extra stakes, a dock canopy, spare blades. Long lawn-care projects go faster with something good in your ears in the meantime: start a free Audible trial and line up a book before the reference station even ships.
Which Automower models actually have EPOS
EPOS isn’t a single tier — it spans Husqvarna’s entire wire-free range, residential through commercial:
- iQ line — the 410 iQ, 420 iQ, and 440 iQ cover roughly 0.5 to 2 acres at $2,999.99-$4,299.99, all wire-free via EPOS.
- 435 iQ AWD — the all-wheel-drive wire-free model, ~1.3 acres and a 70% slope rating, around $4,999.99.
- NERA line — Husqvarna’s newer residential naming (405VE, 410VE, 430V, 450V) that’s gradually replacing the iQ/X naming, also EPOS-based.
- 550 EPOS / 550H EPOS — wire-free versions of the large-lawn 550 family, priced in the $5,000-$5,830 range per third-party dealer AllMachines, versus $3,299.99 for the boundary-wire 550.
- CEORA 544/546 EPOS — the commercial flagship, covering up to 18 acres, with an EPOS reference station bundled into its roughly $32,830 starter kit rather than sold separately.
Notice the pattern: the more residential and budget-conscious the model, the more likely you are to be buying that $899.99 reference station yourself; the commercial CEORA simply folds it into a much larger kit price. See our best Husqvarna Automower guide for the full current lineup and pricing.
EPOS vs. a boundary wire vs. other brands’ RTK
A buried wire is a hard physical limit — the mower’s sensor detects the wire and turns, full stop, every single pass. EPOS is a calculated position compared against a virtual line, so its accuracy depends on maintaining a clean RTK correction signal rather than feeling a physical guide. In practice, 1-2 cm accuracy holds up well in open, unobstructed yards but can degrade near tall structures, dense tree cover, or anything else that blocks a clear view of the sky — the same physics that affect any RTK-GNSS system, not something unique to Husqvarna.
That last point matters when comparing brands: Segway’s i Series and Mammotion’s Luba line also use RTK-GNSS for wire-free navigation, and the concept is the same, but the systems aren’t interchangeable. Husqvarna’s EPOS reference stations and Cloud network only talk to Husqvarna hardware; a Segway or Mammotion mower runs its own separate RTK base station and app. For the fuller landscape of wire-free options across brands, see our robot lawn mower without perimeter wire guide.
The bottom line
Husqvarna EPOS is real, accurate technology — RTK-GNSS positioning good to roughly 1-2 centimeters is a genuine upgrade over a buried wire’s inflexibility, and it’s what lets Husqvarna redraw a mowing zone around a new flower bed in an app instead of digging a trench. But “wire-free” isn’t the same as “hardware-free”: unless you live inside Husqvarna’s Cloud coverage area, EPOS still means installing a physical reference station, and Husqvarna’s own US store prices that part at $899.99 on top of the mower. Budget for it before you compare an EPOS model’s price against a boundary-wire model’s price — the real gap is usually larger than the sticker suggests. For the full model-by-model breakdown, start with our best Husqvarna Automower guide.