Summary Box: Review finds Nike device improves

THE PRODUCT: Nike’s $200 SportWatch GPS uses satellite signals to calculate distance and pace as you run.

THE IMPROVEMENTS: An Associated Press review finds that it’s a simplified device that works exceptionally well in big cities, where other devices have problems because tall buildings block GPS signals.

THE DRAWBACKS: The review finds the device tries to simplify too much and allows for little customization. Beginners and those wanting just the basics might like it, but hard-core runners will likely want more.