Hi, for your lawn sizes, I’d recommend the Luba Mini 2 1500 with LiDAR, which gives you plenty of capacity.

You can use the Drop-and-Mow feature to move the mower manually between the two zones. Wi-Fi or 4G is only needed for remote monitoring and control—the mower will still work without either connection as the navigation is a combination of LiDAR + the AI camera.

It’s best to store the mower away before winter (and preferably charging station too), especially once frost, snow, or consistently waterlogged conditions arrive. Occasional wet grass is generally fine, but I wouldn’t recommend mowing in very wet winter weather.

If you decide to purchase, I’d really appreciate you using my affiliate link. It won’t cost you anything extra:
https://uk.mammotion.com/products/luba-mini-2-awd-1500-robot-lawn-mower?ref=kd2jxen4

All the best, Mark