From the best robot lawn mowers to the best robot vacuum cleaners , the household and garden helpers are becoming increasingly smart and genuinely useful – albeit with a hefty price tag. Aldi’s robot mower, however, is a fraction of the price of premium models that can fetch up to £1,500. Costing £199.99 at Aldi, the robot mower manufactured by Yard Force is best suited to small to medium-sized lawns up to 400 square metres. It features a 16cm cutting width, while the cutting height can be adjusted between 20–55mm to give your garden different effects. On top of one-time setup, the mower can be scheduled via a Bluetooth app and boasts a running time of one hour. While it costs £350 on Yard Force’s website (£349.99, Yardforce.eu ), Aldi has slashed the price to just less than £200 – but as it’s a specialbuy, it won’t be restocked. Here’s all you need to know.…