Do you have to pay a monthly fee for the eufy E15's 4G?

Not to mow. The eufy Robot Lawn Mower E15 works over your home Wi-Fi without any plan, and eufy lists no subscription for the mower itself. You only pay if you want to keep its built-in 4G running once the free data runs out.

The 4G link does two things. It lets you check on and control the mower from the app when you're away from home or when your Wi-Fi doesn't reach the far end of the garden, and it powers GPS theft tracking. According to eufy's user guide, the mower comes with free trial data on first use, after which you buy a data plan through the eufy app. eufy doesn't say how long the trial lasts or publish UK plan prices, so check in the app before relying on it.

Worth knowing: the satellite receiver inside the E15 is only used to locate the mower if it's stolen, not to steer it. eufy quotes a GPS accuracy of about 20–30 m for this, which is enough to find the right street rather than the right garden. If the data plan lapses, mowing, schedules and zones carry on as normal over Wi-Fi; you just lose remote access and tracking.

If strong Wi-Fi reaches the whole lawn and you're not worried about theft, you can skip the plan. Otherwise, weigh the ongoing cost against the other security steps in our theft and security guide, and see how 4G works on robot mowers for UK coverage issues.