Key Takeaways
- Most smart locks replace only the interior deadbolt mechanism, so measuring your door and existing hardware first is essential.
- Every smart lock needs a power source — understand what happens when batteries die before you buy.
- App quality and connectivity protocol (Wi-Fi, Z-Wave, Zigbee, Bluetooth) affect day-to-day usability significantly.
- Strong digital security practices matter as much for smart locks as for any other connected device.
- Renting? Check your lease before making any permanent modifications to door hardware.
Summary
18 items · 20–35 minutes
Why This Checklist Exists
Smart locks promise real convenience — keyless entry, temporary access codes for guests, and the ability to check whether your door is locked from across town. But they also introduce compatibility requirements, power dependencies, and digital security considerations that a traditional deadbolt never had.
This checklist is designed to slow you down just enough to ask the right questions before you commit. If you're new to connected home devices, our no-jargon smart home starting guide provides helpful context for thinking about your first purchase.
Work through each group below before you shop. The goal isn't to make the decision harder — it's to make sure the lock you choose actually fits your door, your household, and your life.
Measuring tape
Used to measure door thickness and deadbolt backset before verifying compatibility with a smart lock.
Screwdriver set
Required to remove the existing deadbolt hardware and install the new smart lock mechanism.
Smart home hub or bridge device
May be needed to enable remote access and integrate your lock with a broader smart home ecosystem.
Password manager
Helps you create and store a strong, unique password for the lock's companion app account.
The Pre-Purchase Checklist
The items below cover five key areas: physical compatibility, power resilience, connectivity, security, and household practicalities. Pay particular attention to the must items — these are the points most likely to cause problems if overlooked.
Door & Hardware Compatibility
Power & Backup Access
Connectivity & Smart Home Integration
Security & Privacy Considerations
Practical & Household Factors
Renters: Get Permission First
Installing a smart lock typically involves removing your existing deadbolt, which may constitute a lease violation in many rental agreements. Always get explicit written permission from your landlord before starting. Some landlords are open to it — especially if you offer to restore the original hardware when you move out.
Keyless-Only Locks Carry Real Risk
Some smart locks have no physical key cylinder at all. If the battery dies, the app fails, or the Wi-Fi goes down simultaneously, you may be unable to enter your home. Consider whether a hybrid model with a traditional key backup better suits your household's needs.
Once your lock is installed, security doesn't stop at setup day. Our guide to keeping smart home devices secure over time covers the ongoing habits worth building into your routine.
Your Lock Is Only as Secure as Your Account
A smart lock connects your front door to a digital account. If that account is compromised — through a weak password or a phishing attack — someone could unlock your door remotely. Use a strong, unique password, enable two-factor authentication, and review your broader digital security practices regularly. Our online security audit checklist is a useful companion resource.