For generations, the front door asked only one question: do you have the key? Smart locks now ask that question in a dozen different ways, and the answer you choose shapes not just your convenience but your security, your daily habits, and your relationship with the technology guarding your home. The market has expanded faster than consumer literacy around it, leaving households to navigate a landscape where genuine innovation and hollow marketing often look identical on a product page. Choosing wisely means understanding what each feature actually costs — in battery life, in complexity, in tr