Smart Door Locks Singapore

Q1. What is a smart door lock?

A smart door lock is an electronic door lock that allows keyless access using methods such as fingerprint, PIN, RFID card, face recognition or palm vein recognition.

Selected smart locks also include connected features such as mobile app control, remote access, temporary passwords, access records, smart-home integration or built-in cameras.

Many modern smart door locks still include emergency access options such as external emergency power and a mechanical key backup.

Q2. What is the difference between a smart lock and a digital lock?

A digital lock generally refers to an electronic lock that replaces or reduces traditional key access using methods such as PIN, fingerprint or RFID card.

A smart lock is usually a digital lock with additional connected or advanced features such as mobile app access, remote management, temporary passwords, notifications or smart-home integration.

The terms are often used interchangeably today because many modern digital door locks combine both keyless access and smart features.

Q3. Can a smart door lock be installed on an HDB or condo door?

Most HDB and condo main doors can support selected digital or smart door locks, but compatibility depends on the actual door.

Door thickness, the existing lock position, mortise cut-out, door frame, handle clearance and surrounding space can all affect whether a particular model can be installed properly.

If your home also has a metal gate, the distance between the gate and main door should also be checked.

Interlock can assess your door before purchase using photos and measurements to narrow down suitable models.

Q4. How is a smart door lock installed?

Most smart door locks are professionally installed at the time of purchase.

Depending on the existing door and lock, installation may involve removing the old lock, preparing or modifying the mortise opening, fitting the new lock body, aligning the door and strike area and configuring the electronic functions.

The technician should also help set up fingerprints, PIN codes or cards and explain everyday operation and emergency access.

Interlock provides professional digital lock installation using our in-house team and has specialised in digital locks in Singapore since 2008.

Q5. What happens if my smart door lock battery runs out?

Most digital door locks provide an external emergency-power method that allows temporary power to be supplied from outside the home.

The exact method depends on the lock. Some models use USB-C emergency power, while other digital locks use external 9V battery contacts.

Many locks also include a mechanical key override.

Because emergency-access methods vary between models, check the specific lock you are purchasing and make sure household members know how to use its backup method.

Q6. Do smart door locks work with Apple Home, Google Home or other smart-home systems?

Selected smart door locks can integrate with smart-home platforms, but compatibility varies considerably between brands and models.

Some locks operate primarily through their manufacturer's mobile application, while others support ecosystems such as Apple Home, Google Home or other compatible smart-home platforms.

If smart-home integration is important to you, choose the lock based on the ecosystem you already use rather than assuming every smart lock supports every platform.

Q7. Is a smart door lock worth it?

A smart door lock can be a worthwhile upgrade for households that value convenient keyless entry.

Instead of carrying a traditional key for everyday access, household members can use fingerprint, PIN, RFID card, face recognition or other supported methods.

Connected models can add features such as remote access, temporary passwords, activity records, notifications or app management.

However, not every household needs every smart feature. A simpler digital lock may be a better choice if fingerprint, PIN and card access already cover your needs.

Q8. What is the best smart door lock in Singapore?

There is no single best smart door lock for every Singapore home.

The best option depends on your door type, budget, preferred unlock methods, smart-home requirements and whether you also need a digital gate lock.

For homeowners looking for an advanced all-in-one option, the Interlock Mercury X6 combines fingerprint, face recognition, palm vein recognition and a built-in door viewer with connected smart features.

Aqara models may be particularly relevant to homeowners who prioritise Apple smart-home integration, while simpler digital locks from brands such as Gateman may be more suitable if you mainly need PIN and RFID card access.

The best approach is to check door compatibility first and then compare the features your household will actually use.

For a wider comparison, explore our Best Digital Locks in Singapore guide.

Q9. What are the disadvantages of smart door locks?

Smart door locks require battery maintenance, and connected functions may depend on Wi-Fi, Bluetooth, an app or another smart-home connection depending on the model.

More advanced smart locks can also contain additional electronic components, cameras and biometric sensors compared with simpler digital locks.

This does not mean that more advanced locks are unsuitable. It simply makes it important to choose the level of technology you actually need and maintain the lock according to the manufacturer's recommendations.

Homeowners should also consider installation quality, weather exposure, battery maintenance and long-term after-sales support when selecting a lock.

Q10. Should I choose fingerprint, face recognition or palm vein recognition?

Fingerprint unlocking is fast, widely available and convenient for most users.

Face recognition provides contactless unlocking and can be especially convenient when entering the home without needing to touch the lock.

Palm vein recognition is another contactless biometric method available on selected advanced smart locks.

Different biometric methods can perform differently between users, which is why having alternative access methods is useful.

For most households, choosing a lock that also includes PIN or RFID card access provides additional flexibility and backup options.

Q11. Can children and elderly family members use a smart door lock?

Yes, but the best access method can differ between household members.

Some users may find fingerprint access convenient, while others may prefer face recognition, palm vein recognition, PIN or RFID card access.

For households with children, elderly family members or domestic helpers, choosing a lock with several different access methods can make everyday use easier.

Rather than assuming one biometric method will work best for everyone, consider how each person in the household is likely to enter the home.

Q12. Do I need Wi-Fi for a smart door lock?

Not necessarily.

Many digital door locks can perform core functions such as fingerprint, PIN or RFID card unlocking locally without an active Wi-Fi connection.

Wi-Fi or another form of connectivity is typically required for connected features such as remote access, notifications, activity records or certain app functions.

If you do not need remote features, a simpler offline digital lock may be sufficient.

Q13. Can I install a smart lock on both my HDB door and gate?

Yes, provided suitable models are selected for both the main door and metal gate.

Door locks and gate locks have different installation requirements, so compatibility should be checked for both before purchase.

Selected Interlock door and gate combinations can also support synchronised unlocking, allowing the two locks to work together when entering the home.

If you plan to secure both your door and gate, choosing them as a compatible pair can provide a smoother experience than selecting two unrelated locks separately.

Q14. How much does a smart door lock cost in Singapore?

Smart door lock prices vary depending on the brand, locking mechanism and features included.

Simpler digital locks with PIN, RFID card or fingerprint access generally cost less than models with advanced features such as face recognition, palm vein recognition, built-in cameras, remote connectivity or smart-home integration.

When comparing prices, also consider whether installation is included, the suitability of the lock for your door, warranty coverage and after-sales support.

Interlock carries options across different price and feature levels so homeowners can choose based on their actual requirements rather than buying features they may not use.

Q15. What smart door lock brands are available in Singapore?

Interlock carries smart and digital door locks from brands including Interlock Mercury, Aqara, Gateman, Lockin, Solity and Samsung Zigbang.

These brands differ in design, locking mechanisms, biometric features, mobile applications, smart-home compatibility and price.

Instead of choosing based only on the brand name, compare the specific model against your door compatibility and the features your household requires.