Quick Answer: A robot mower’s 4G works on a specialized device network that’s separate from your phone’s LTE/5G service, so a full bar of phone signal at the dock is not proof the mower will connect — per Husqvarna’s own support documentation (KA-70389), the only reliable warning sign is the reverse: no phone signal at all means the mower very likely has none either. What it costs after any free trial period varies enormously by brand: eufy charges $19.99/year for just 1GB once its 7-day trial ends, Anthbot’s optional NetRTK correction service runs $35.99–$107.99/year, and Mammotion reversed course in 2026 to make 4G data and NetRTK free for the lifetime of the device. Check the exact model’s current terms before assuming any of these apply to a different brand.
Our Wi-Fi dead zone guide covers the app-connectivity failure most owners hit first. Cellular is a separate path some models add on top — sold as anti-theft tracking, navigation correction, or a Wi-Fi-free fallback — and it comes with its own coverage rules and its own, wildly inconsistent pricing that almost nothing in a spec sheet discloses up front.
Phone signal is not a reliable test
It’s tempting to check your phone in the yard and assume that settles it. Husqvarna’s own support article on this exact question says otherwise: Automower’s cellular connectivity uses a specialized network built for connected devices, not the consumer LTE/5G network a phone connects to, and your phone has no way to show the status of that other network. The one test that does hold up, per Husqvarna, runs in only one direction — if your phone shows zero signal at all, the mower’s cellular connection will very likely fail too. A strong phone signal tells you nothing either way.
Coverage is typically solid in cities and populated suburbs. Husqvarna specifically flags remote rural areas, locations far from cell towers, and sparsely populated regions as where limitations are most likely — exactly the large-lot buyers most drawn to a wire-free, cellular-backed mower in the first place. Its own recommendation is blunt: test with an actual mower at the installation site, or ask a dealer, rather than extrapolate from a phone or a coverage map.
What cellular actually costs, brand by brand
| Brand / model | What 4G is used for | Free period | Cost after | Source |
|---|---|---|---|---|
| eufy E15 / E18 | Remote status, app connectivity away from Wi-Fi | 7-day trial | $19.99/year for 1GB (non-refundable) | eufy official support FAQ |
| Anthbot Genie 1000 / 3000 | Remote monitoring, anti-theft tracking | First year included | Not publicly disclosed | TechRadar / Anthbot listings |
| Anthbot N8 (NetRTK add-on) | Faster GPS lock / navigation correction | None — paid from day one | $35.99–$107.99/year by tier | PCWorld |
| Mammotion Luba / Yuka lines | iNavi NetRTK correction + data link | Was 1–3 years by model year | Now free for device lifetime (2026 policy change, retroactive) | Notebookcheck / GSMGoTech |
| Husqvarna Cloud network | App link, or navigation path if no personal EPOS station | N/A | $0 where available (bundled) | Husqvarna US store |
The spread is the real story here. eufy’s plan is thin enough — 1GB a year — that it only really covers periodic status pings, not continuous app use. Anthbot splits its lineup in two: the Genie’s 4G is a monitoring convenience with pricing Anthbot hasn’t published past year one, while the N8’s NetRTK is sold openly as a tiered precision upgrade. Mammotion is the outlier in the other direction, having gone from charging for data on older models to giving it away for the life of the device — a policy reversal worth confirming still applies before you buy, since manufacturer policies like this can change again.
Anthbot Genie 1000 (Wi-Fi + 4G)
- Full-band RTK + four-camera navigation, 0.49-acre coverage, same deck and slope rating across the Genie lineup.
- 4G is the step up from the Wi-Fi-only Genie 600 — it's what keeps anti-theft tracking working once the mower is out of home Wi-Fi range.
- Anthbot has not published a renewal price for the 4G service past the included first year; confirm current terms directly before buying if that matters to you.
Ordering now instead of waiting on a model’s next price change — start your free Audible trial for something to listen to while you walk the yard testing signal at the install site.
When the connection actually matters to mowing, not just monitoring
Most of this is a convenience layer, not a mowing-stops risk — but not always, and the distinction is worth knowing before you buy rather than after a dead zone shows up.
Pure monitoring add-ons keep the mower running without them. The Anthbot Genie’s 4G and the N8’s NetRTK correction are both optional on top of a base navigation system that already works without cellular. Losing the connection (or never paying for it) means losing anti-theft tracking or a faster GPS lock — annoying, not disabling.
Cloud-tied navigation is the exception. Our Husqvarna EPOS guide covers the choice between a personal RTK reference station and relying on Husqvarna Cloud coverage instead. A Cloud-tied installation uses that connection as part of the navigation signal path itself, not just an app convenience — so a true cellular dead zone there is a materially different problem than an Anthbot owner skipping NetRTK, or a eufy owner letting their 1GB plan lapse.
It’s a different failure mode than Wi-Fi, not a backup for it. Our Wi-Fi dead zone guide covers the far more common 2.4GHz-band mismatch that strands app connectivity at the dock. Cellular doesn’t automatically fix that — it’s a separate network with its own coverage rules, sold on different models for different reasons, and in several cases it costs real recurring money a Wi-Fi-only setup never asks for.
The bottom line
Don’t let “has 4G” read as “works everywhere” — it’s a specialized network with its own coverage gaps, concentrated in exactly the rural, large-lot properties that most want a cellular-backed mower. Before buying for a model you’re counting on cellular for, check whether the brand actually publishes an ongoing cost: eufy’s and Anthbot N8’s pricing is public and real money per year, Mammotion’s is now free for the device’s life, and Anthbot’s Genie line simply hasn’t said what happens after year one. None of that shows up in a spec sheet, so it’s worth one support-page check before you buy rather than finding out at renewal.