Flagship fitness watches and trackers from Garmin, TomTom, Misfit and Withings are put under the microscope in our in-depth wearable testing.
Our rigorous lab tests prove you can’t always rely on your fitness tracker to show accurate distance, heart rate and calorie-burn data so choose carefully.
The best sat nav will keep you right on your way home for Christmas. We've rounded up some of the most popular standalone sat navs and sat nav apps.
How long will your sat nav battery last? Which? took to the road to see which sat nav has the best battery life. Read on for the results.