The best smart telescopes will let you find the Lagoon Nebula and the Hercules Cluster with the touch of a button. And with Prime Day nearly here, watch out for big savings on these telescopes.

Installing a smart water sensor can save you a lot of money and hassle. The best models we've tested immediately alert you to leaks and even shut off your home's water supply.

Smart bird feeders snap pictures and videos of birds stopping by for a bite, identify them by species, and sometimes do double duty as security cameras. I've tested the most popular models to help ...

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