Every Robot Mower With Built-In 4G, and How Long the Data Is Free

4G is the feature that turns a robot mower from a home-Wi-Fi gadget into something you can check from anywhere. It sends theft alerts and GPS location, lets you start or stop the mower from work or vacation, and on some models powers the network RTK that keeps the mower positioned. It’s also the feature most likely to cost you money later, because nearly every brand’s free data runs out.

This list covers which mowers have 4G built in, which need a module, and exactly how long each brand says the data is free. Terms come from each brand’s US pages. MowReview quotes no prices and hasn’t tested these mowers. How we research explains why.

Built-in 4G, and how long it’s free

1. Husqvarna Automower: the longest free connectivity

Husqvarna’s US support page is unusually clear: “The Automower® Connect service is free,” with “no running costs,” and “all data traffic is included.” The built-in Husqvarna SIM provides “free connectivity for 10 years,” as long as Automower Connect keeps supporting the network technology in your market and a provider remains available. Connected models use an eSIM, and Husqvarna says you can insert a local physical SIM if coverage is limited. Tractor Supply’s 420 iQ listing adds that the mower uses the national cellular network for its location data.

2. Segway Navimow X3: up to five years, by size

Segway’s US spec page lists two years of free 4G on the X330, three on the X350 and five on the X390. After that, a subscription keeps the 4G features. Segway also says a plan left expired for more than two years can’t be renewed, so don’t let it lapse if you’ll want it later. Navimow X330 vs X350 vs X390 covers the other differences.

3. Mammotion LUBA 3 AWD and LUBA mini 2 AWD: three years

Mammotion’s US 4G guide, dated July 2026, lists a built-in 4G module and three years of free data on its 2026 LUBA 3 AWD and LUBA mini 2 AWD models, for policies effective from January 5, 2026. After that, Mammotion sells 3-month and 12-month plans. Without one, the mower relies on Wi-Fi and “4G-specific features will no longer be accessible.” You can’t insert your own SIM or choose a carrier.

4. Dreame A3 AWD Pro: three years

Dreame’s US page lists built-in 4G with three years free on all three A3 AWD Pro sizes, with continued use after that requiring a separate purchase. The A3 AWD Pro also lists AirTag compatibility, with the AirTag bought separately.

5. Segway Navimow X4: one or two years of Connect+

Segway includes 4G on the X4, but the free period of its Connect+ service is shorter: one year on the X430 and two on the X450, then a yearly renewal. PCWorld notes that remote control and tracking need that subscription.

Mowers that need a 4G module

A module isn’t necessarily a dealbreaker. If your Wi-Fi reaches the whole lawn and you’re mostly home, you may never need it. But add it to the cost when comparing a module model with one that has 4G built in.

Do you need 4G at all?

4G earns its keep when:

• Your Wi-Fi doesn’t reach the whole lawn. Without a connection, you lose app control and alerts in the dead zones. See does a robot mower need Wi-Fi?
• You’re worried about theft. Live GPS tracking needs a connection when the mower leaves your network. See robot mower theft.
• You’re often away. For a second home or long trips, 4G is how you’ll know it’s stuck. See robot mowers for a vacation home.
• The mower uses network RTK. On some models, cellular data carries the satellite corrections, so you don’t need to install an antenna.

If none of those apply, Wi-Fi is enough, and the free 4G period matters less. Robot mowers with no subscription covers the other ongoing costs.

The picks

Questions

Which robot mowers have built-in 4G?

In the US, we found built-in cellular on Husqvarna’s connected Automowers, including the 410 iQ, 420 iQ and 435 iQ AWD, the Segway Navimow X3 and X4, the Mammotion LUBA 3 AWD and LUBA mini 2 AWD, and the Dreame A3 AWD Pro.

Which robot mower has the longest free 4G?

Husqvarna. Its US support page says Automower Connect is free with no running costs, and its SIM provides free connectivity for 10 years, as long as the network technology and a provider remain available. Among the others, the Navimow X390 lists five years.

What happens when a robot mower’s free 4G runs out?

The mower keeps mowing, but the cellular features stop. Mammotion says its mowers then rely on Wi-Fi and 4G-specific features are no longer accessible. Segway says a Navimow X3 plan left expired for more than two years can’t be renewed.

Do I need 4G on a robot mower?

Not if your Wi-Fi reaches the whole lawn and you don’t need alerts away from home. 4G matters for theft tracking, alerts when you’re away, lawns beyond Wi-Fi range, and on some models network RTK positioning.

Can I put my own SIM card in a robot mower?

It depends on the brand. Mammotion says you can’t insert your own SIM or choose a carrier. Husqvarna says its connected Automowers use an eSIM but you can insert a local physical SIM if coverage is limited.

Is Mammotion 4G free for life in the US?

Not as of our check. European tech sites reported in April 2026 that Mammotion made iNavi and 4G permanently free, but Mammotion’s US 4G guide, dated July 2026, lists three years free on 2026 models and paid plans after that.

The short version

If you want 4G without thinking about renewals, Husqvarna’s connected Automowers stand out, with no running costs and 10 years of free connectivity. Among the rest, the Navimow X390 gives five years, the 2026 Mammotion LUBA models and the Dreame A3 AWD Pro three, and the Navimow X4 one or two. And if you’re buying a Navimow i-series, YUKA mini 2, GOAT A3000 or Sunseeker X7, budget for the module.