A smart lock means no more hiding a key under the mat or getting locked out. But the options vary widely, and the right one depends on how you want to unlock your door and whether it fits your existing hardware.
How you unlock matters most
Keypad locks let anyone with a code in, which is great for family members and guests without handing out keys. Fingerprint locks are fast and personal. App and phone-proximity unlocking is convenient but depends on your battery and connection. Many locks combine several methods, and most still keep a physical key as a backup.
Connection and compatibility
Some smart locks connect over wifi for remote control from anywhere, while others use Bluetooth and only work when you are nearby unless paired with a hub. If you want to lock the door from the office or grant remote access, confirm the lock offers wifi or a hub. Also check whether it works with the smart home system you already use.
Make sure it fits your door
Before buying, measure your door thickness and note your current deadbolt setup. Most smart locks replace the interior side and sometimes the exterior, and they need a standard deadbolt bore. Retrofit models keep your existing exterior key and just replace the inside, which is the easiest upgrade for renters or anyone who likes their current keys.
Before you buy
- Decide on keypad, fingerprint, or app unlock
- Confirm wifi or hub for remote access
- Check compatibility with your smart home system
- Measure door thickness and deadbolt fit
- Verify there is a physical key backup
- Check battery type and expected life
Smart locks
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Common questions
What happens to a smart lock if the batteries die?
Most smart locks warn you well before batteries run low and keep a physical key backup or emergency power contacts. Change the batteries when prompted and you will not get locked out.
Can I install a smart lock myself?
Many retrofit models install with a screwdriver in about twenty minutes if you have a standard deadbolt. If your door is unusual or the deadbolt does not fit, a locksmith can handle it quickly.
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