CR tested GPS trackers from Bark, Garmin, and others and found differences in how they protect kids’ data. Here’s what to know about tracking your child.

More brands are launching screenless trackers to keep you focused, not distracted. I tested the Polar Loop to see if it delivers.

This is what you get: The $199 price for a GPS running watch with an AMOLED display, advanced training metrics, and an 11-day ...