As a dedicated fan of kitchen gadgets, a Bluetooth scale linked to a companion iPad app that walks you through recipes step-by-step was too much to resist. Besides, it was a chance to bake some cookies and call it work (though I’m not entirely convinced the taxman is going to allow me to deduct the cost of the ingredients).

The scale is very compact – a little under 6.5 inches across with the front lip, and around 5.5 inches wide. There are no visible controls or display, but the lip contains a button and a hidden LED which lights up briefly when the scale connects to the app. Otherwise, it’s entirely featureless …  expand full story