A few times per year a device comes along that’s not a fancy-schmancy tablet or phone, but still intriguing enough to warrant a teardown. Like the Nest Protect, a $130 smoke detector with other nifty doodads sprinkled inside. How does the Protect achieve all the fun stuff that Nest advertises? We just had to find out.
The Nest Protect is straight-forward and easy to disassemble. Common screw types, user-accessible batteries, and a simple design make it a very solid, repairable product. That said, we won’t be assigning a repairability score: The Protect is a piece of safety equipment, and your life could depend on it. Aside from replacing the batteries, it should not be taken apart if it’s going to be used for its intended purpose afterwards.