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Last call: I've tried many smart locks, but the one I keep on my door is $133 on Prime Day

The Aqara U100 is ideal for Apple fans but great for everyone, combining Apple Home Key, keypad, fingerprint, NFC tags, and a physical key for unlocking -- all for $133 during the final hours of Prime Day.

Thanks to a built-in gyroscope for motion detection, you can set the device to auto-lock when the door is closed (with no extra modules required). Though my experience was mostly positive, I found the app very slow and unreliable at giving me the lock status, even when my phone was within Bluetooth range. Being able to consistently (and flexibly) unlock my door with either my fingerprint or Apple Watch, and not one or the other, has added the exact amount of convenience to my life that I look for in all smart home devices.

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