Delphi's Vehicle Diagnostics system works best as a tool for parents who let their kids drive the family car, as it shows the car location and will trigger an alert if the car leaves a proscribed area.
Win a portable gadget that monitors your car's performance and delivers diagnostic data straight to your smartphone via Bluetooth.
In response to alleged security holes, Apple reveals details on how its diagnostic services access certain data on iOS devices.
Vinli goes beyond basic fuel economy monitoring with 4G LTE, Wi-Fi hotspotting, GPS and more.
Google's Chrome Connectivity Diagnostics app helps take the guessing game out of network troubleshooting.
Tern's human-powered pedal pusher may be low-tech, but its old-school bicycles are slowly getting smarter.
Do you want to know how good your microwave is? You can see how many hot spots it has with a few bits of buttered bread, and you can measure the speed of light at the same time. Appliance Science looks at mapping your microwave.
Looking to be a better batter? Win a free swing-diagnostics tool from Diamond Kinetics that delivers instant data on all aspects of your hitting right to your iPhone or iPad.
This chic portable speaker from Braven also has a built-in power bank for charging your devices. Oh, and it's free.
Once you've gotten one, taken it home and unboxed it, here's how you set it up.