SwitchBot Lock review: a tiny robot hand that unlocks your door

The $99 SwitchBot Lock is the first smart door lock I’ve tested that doesn’t replace any part of your existing lock. Instead, it attaches to the back of your door over the top of the thumb turn. This removes a major pain point of smart locks: an involved installation. But the SwitchBot Lock is really odd looking — my husband literally stopped in his tracks and said, “What is that thing?” I had a similar reaction when I first saw it and was wholly unconvinced this large piece of…