Downtime

A Delorean that can travel back in time, the internet and the wheel are all great inventions that have furthered the cause of mankind. By contrast, a watch that tells you if there is a Wi-Fi connection nearby could be said to lack ambition. But hey, it is made in the UK.
The Wi-Fi-detecting watch is described as a “discreet alternative” that will reveal the strength of local Wi-Fi connections, so you can select the best location from which to hook up.
Surprisingly, the inventor did not seem to realise that any device that needs a Wi-Fi connection would automatically have detection software built in anyway.
Other inventions in the pipeline from the inventor of the Wi-Fi watch include the battery powered battery recharger, the all-black energy-saving lightbulb and the undersea toaster.