Best Digital Door Locks in Singapore 2026: Top Models and Bundle Picks
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The best digital door lock in Singapore depends on your door type, budget, smart-home needs and how your family enters the home every day. For most HDB and condo homeowners who want the strongest all-round smart door lock in 2026, our top pick is the Interlock Mercury X6. You can browse all digital locks in Singapore while you compare the picks below.
The Mercury X6 combines palm vein recognition, facial recognition, fingerprint, PIN, RFID card, app control, mechanical key access, an in-built door viewer and doorbell in one premium main-door lock. For a complete front-entrance upgrade, we also cover the best door-and-gate bundle picks below. Looking for gate-only recommendations? See our dedicated best digital gate lock guide for Singapore homes.
Price disclaimer: Prices listed in this guide were checked on 14 Jun 2026 from the respective product pages. Prices, promotions, bundle configurations, installation scope and availability may change without notice. Please check the individual product pages separately before making a purchase decision.
Quick Verdict: Best Digital Door Locks in Singapore 2026
- Best digital door lock overall: Interlock Mercury X6
- Best digital door lock for HDB: Interlock Mercury X6
- Most affordable digital door lock: Interlock Mercury X2
- Best rental-unit digital door lock: Interlock Mercury X5
- Best smart-home door lock: Aqara A100
- Best door + gate bundle: Interlock Mercury X6 + G3
- Best value door + gate bundle: Interlock Mercury X2 + G3
- Best glass door lock: Interlock Mercury GD1
- Best sliding door lock: Interlock Mercury SD1
Summary: Best Digital Door Locks in Singapore 2026
| Category | Best Pick | Checked Price | Promo Status | Best For | Why It Stands Out |
|---|---|---|---|---|---|
| Best digital door lock overall | Interlock Mercury X6 | $849 | Promo price shown, usual $899 | HDB, condo and landed main doors | Palm vein, 3D facial recognition, fingerprint, PIN, RFID card, app control, built-in viewer and doorbell. |
| Best smart door lock in Singapore | Interlock Mercury X6 | $849 | Promo price shown, usual $899 | Families wanting a complete front-door experience | Combines advanced biometrics with smart visitor viewing and app-based access management. |
| Best digital door lock for HDB | Interlock Mercury X6 | $849 | Promo price shown, usual $899 | HDB homeowners upgrading their main wooden door | Strong daily convenience with face, palm vein, fingerprint, PIN, card, app and key access. |
| Most affordable digital door lock | Interlock Mercury X2 | $549 | Promo price shown, usual $649 | BTOs, simple homes and users who prefer no app | No Wi-Fi, no cloud and no app dependency. Simple fingerprint, PIN, card and key access. |
| Best rental-unit digital door lock | Interlock Mercury X5 | $659 | Promo price shown, usual $799 | Rental units, landlords and temporary access users | Supports online access methods and time-based PIN management at a lower price than X6. |
| Best smart-home door lock | Aqara A100 | $648 | Promo price shown, usual $684 | Apple Home and Apple Home Key users | Strong smart-home integration for users already invested in the Aqara or Apple ecosystem. |
| Door lock honourable mention | Gateman SP122 | $549 | Promo price shown, usual $649 | Users who want a simple Korean PIN and RFID lock | Simple, durable and app-free for homeowners who value long-term basic reliability. |
| Best door + gate bundle | Interlock Mercury X6 + G3 | From $1,299 | Promo price shown, usual from $1,499 | Premium full entrance upgrade | Flagship smart door lock plus dual-camera smart gate lock in one Mercury ecosystem. |
| Best value door + gate bundle | Interlock Mercury X2 + G3 | From $999 | Promo price shown, usual from $1,099 | Practical homeowners who want strong value | Simple, reliable door access paired with a smarter dual-camera gate experience. |
| Bundle honourable mention | Solity GEA1000K + Solity G1 | $1,199 | Promo price shown, usual $1,299 | Solity ecosystem and fire-rated door users | Fire-rated door lock option with Solity smart gate ecosystem and Matter support. |
| Best glass door lock | Interlock Mercury GD1 | $528 | Promo price shown, usual $749 | Residential and light commercial glass doors | Glass-specific lock with face, fingerprint, PIN, card, app and mechanical key access. |
| Best sliding door lock | Interlock Mercury SD1 | $528 | Promo price shown, usual $749 | Sliding balcony, patio and room doors | Dedicated sliding-door design with face, fingerprint, PIN, card, app and key access. |
Jump to Section
- Best Digital Door Lock Overall: Mercury X6
- Best Smart Door Lock: Mercury X6
- Best Digital Door Lock for HDB: Mercury X6
- Most Affordable Digital Door Lock: Mercury X2
- Best Digital Door Lock for Rental Unit: Mercury X5
- Honourable Mentions: Aqara A100, Gateman SP122
- Best Door + Gate Bundle: Mercury X6 + G3
- Best Value Door + Gate Bundle: Mercury X2 + G3
- Bundle Honourable Mention: Solity GEA1000K + G1
- Best for Face Recognition and Palm Vein
- Best No-WiFi Digital Door Lock
- Best Digital Door Lock for Elderly Parents
- Best Glass Door Lock: Mercury GD1
- Best Sliding Door Lock: Mercury SD1
- Best Digital Door Lock by Household Type
- How to Choose the Best Digital Door Lock in Singapore
- Installation and Compatibility Checklist
- Accessibility: Kids, Elderly Users and Helpers
- FAQ: Best Digital Door Locks in Singapore
- Final Recommendation
Best Digital Door Lock Overall: Interlock Mercury X6
The Interlock Mercury X6 is our pick for the best digital door lock in Singapore overall because it gives homeowners the strongest all-round balance of convenience, security features, smart access and daily usability.
Checked price: $849 promo price, usual $899.
Best for: HDB, condo and landed homeowners who want a premium all-in-one smart door lock.
Main access methods: Palm vein, facial recognition, fingerprint, PIN, RFID card, app control and mechanical key.
What makes the Mercury X6 stand out is that it is not just a digital lock. It also works as a smarter front-door access system with an in-built door viewer, doorbell and app-based visitor features. For families, this means different users can unlock naturally: face or palm vein for hands-free access, fingerprint for daily use, PIN for backup, RFID card for children or helpers, and mechanical key access when needed.
The X6 is also a strong choice for multi-generation homes. Elderly users who struggle with dry fingerprints can use face or palm vein recognition, while children can use card or PIN access depending on age and household preference.
Consider another model if: you prefer a simple offline lock without app, camera or rechargeable battery maintenance. In that case, the Interlock Mercury X2 may be a better fit.
Best Smart Door Lock in Singapore: Interlock Mercury X6
The Interlock Mercury X6 is also our best smart door lock pick because it combines modern biometric access with useful entrance features such as app access, visitor viewing, doorbell function and access records.
For homeowners comparing "smart lock" versus "digital lock," the X6 is closer to a full smart entrance device. It supports app-based access management and visitor features while still keeping important backup methods such as PIN, RFID card and mechanical key access.
This makes it suitable for families who do not just want to remove keys, but also want a more convenient and visible front-door experience.
Best Digital Door Lock for HDB: Interlock Mercury X6
The best digital door lock for most HDB main doors is the Interlock Mercury X6 because it provides a strong mix of convenience, advanced biometrics and visitor awareness while remaining suitable for common Singapore main-door use cases when compatibility is confirmed.
For HDB homes, the main door is often used by multiple family members, helpers, children, elderly parents and guests. A good HDB digital door lock should therefore offer more than one way to unlock. The Mercury X6 works well here because it supports contactless access, fingerprint access, PIN, RFID card, app access and mechanical key backup.
However, final suitability still depends on the actual door condition, previous lock cut-out, handlebar clearance, door thickness and frame alignment. Before purchasing, homeowners should send clear photos for compatibility checking instead of choosing based on features alone.
Most Affordable Digital Door Lock: Interlock Mercury X2
The Interlock Mercury X2 is our pick for the most affordable digital door lock because it focuses on the essentials: fingerprint, PIN, RFID card and mechanical key access without requiring Wi-Fi, cloud accounts or app setup.
Checked price: $549 promo price, usual $649.
Best for: BTO owners, simple households, elderly-friendly homes and users who prefer no app.
Main access methods: Fingerprint, PIN, RFID card and mechanical key.
The X2 is ideal for homeowners who want keyless convenience but do not need facial recognition, app control, camera features or remote unlocking. Because access data is stored locally and the lock is designed to operate without cloud dependency, it is a practical option for privacy-conscious and less tech-savvy users.
It is also easy to explain to family members: register fingerprint, set PIN, use RFID card if needed, and keep the mechanical key as backup. For many homes, that is enough.
Consider another model if: you need remote access management, temporary online PINs or app-controlled user removal. For rental units, the Mercury X5 may be a better choice.
Best Digital Door Lock for Rental Unit: Interlock Mercury X5
The Interlock Mercury X5 is our recommended digital door lock for rental units because it gives landlords and property owners smarter access management at a lower price than the Mercury X6.
Checked price: $659 promo price, usual $799.
Best for: Rental units, landlords, temporary access users and homeowners who want smart access without paying for the X6 tier.
Main access methods: Facial recognition, palm vein, fingerprint, PIN, RFID card, Tuya app and mechanical key.
For rental homes, the key requirement is not always the most premium hardware. It is the ability to create access for tenants, guests or service providers, and remove that access when they no longer need entry. This is where the Mercury X5 makes sense: it supports smarter access methods and app-based management while remaining cheaper than the Mercury X6.
The X5 is also useful for owners who want strong biometric convenience but do not necessarily need the full flagship front-door experience of the X6. It gives a good balance of cost, control and convenience for rental or temporary-access situations.
Consider another model if: the unit is for elderly users who dislike app-based setup. In that case, the simpler Mercury X2 may be easier to use daily.
Honourable Mentions for Digital Door Locks
Honourable Mention 1: Aqara A100
The Aqara A100 is our honourable mention for homeowners who prioritise smart-home integration, especially Apple Home and Apple Home Key.
Checked price: $648 promo price, usual $684.
Best for: Apple Home, Aqara ecosystem and smart-home users.
The A100 is a good fit for homeowners who want the digital door lock to work inside a broader smart-home setup. It supports fingerprint, PIN, NFC, app functions, mechanical key access and Apple ecosystem features, subject to proper setup requirements.
Why it is not our overall winner: it is excellent for smart-home users, but not every household wants or needs Apple Home, hubs or ecosystem setup. For a more all-round front-door experience with palm vein and face recognition, the Mercury X6 remains our top pick.
Honourable Mention 2: Gateman SP122
The Gateman SP122 is an honourable mention for users who want a simple, durable, app-free Korean digital lock with PIN and RFID card access.
Checked price: $549 promo price, usual $649.
Best for: Users who value simplicity and long-term basic reliability.
This is a practical choice for homeowners who do not care about facial recognition, palm vein, app control or smart-home integration. It is not the most feature-rich option, but for some households, fewer features also means less confusion.
Best Door + Gate Bundle: Interlock Mercury X6 + G3
The best door-and-gate digital lock bundle for most Singapore homeowners is the Interlock Mercury X6 + Mercury G3. It pairs the Mercury flagship smart door lock with the Mercury dual-camera smart gate lock in one ecosystem.
Checked bundle price: From $1,299 promo price, usual from $1,499. Final price may vary by selected bundle variant.
Best for: HDB and condo homes that want a premium full-entrance upgrade.
The main advantage of choosing a matched door-and-gate bundle is consistency. User setup, access methods, support and daily unlocking behaviour are easier to manage when both locks are from the same ecosystem.
For busy families, the X6 + G3 setup gives a strong combination: premium main-door biometrics and visitor features on the door, plus dual-camera gate awareness for visitors and parcels.
For a deeper look at the gate lock side of this bundle, see our dedicated best digital gate lock guide.
Best Value Door + Gate Bundle: Interlock Mercury X2 + G3
The best value door-and-gate bundle is the Interlock Mercury X2 + Mercury G3 because it pairs a simple, reliable door lock with a smarter dual-camera gate lock.
Checked price: Please check the live Mercury bundle variant for the final X2 + G3 price.
Best for: Homeowners who want a strong gate experience but prefer a simpler and more affordable main-door lock.
This setup makes sense when the gate is the area where you want more intelligence, such as camera viewing, visitor awareness and parcel monitoring, while the main wooden door only needs simple daily keyless entry.
It is especially practical for homeowners who do not need face recognition or palm vein on the door, but still want a more advanced gate lock.
For gate lock comparisons including the Mercury G3, see our best digital gate lock guide for Singapore.
Honourable Mention Bundle: Solity GEA1000K + Solity G1
The Solity GEA1000K + Solity G1 bundle is an honourable mention for homeowners who prefer the Solity ecosystem, push-pull style and fire-rated door lock positioning.
Checked price: $1,199 promo price, usual $1,299.
Best for: Solity users, fire-rated main-door needs and Matter-focused smart-home households.
This is a strong alternative for users who prefer a Korean push-pull lock ecosystem and want the GEA1000K door lock paired with the Solity G1 gate lock.
Best Digital Door Lock for Face Recognition and Palm Vein: Interlock Mercury X6
The best digital door lock for face recognition and palm vein access is the Interlock Mercury X6. It is especially suitable for households where fingerprint recognition may not be ideal for every user.
Face recognition and palm vein access are useful for children, elderly users, people carrying groceries, or family members who prefer touchless unlocking. Instead of relying only on fingerprints, the X6 gives users multiple biometric options.
This is one reason the X6 is our best overall smart door lock pick for Singapore homes in 2026.
Best No-WiFi Digital Door Lock: Interlock Mercury X2
The best no-WiFi digital door lock is the Interlock Mercury X2 because it operates without app setup, cloud accounts or Wi-Fi dependency.
This makes it ideal for homeowners who want a digital lock but do not want another app, another account, or another smart-home device to manage. It is also suitable for elderly-friendly households where simple operation matters more than advanced smart features.
For many users, the X2's four access methods — fingerprint, PIN, RFID card and mechanical key — are enough for daily use.
Best Digital Door Lock for Elderly Parents: Mercury X2 or Mercury X6
The best digital door lock for elderly parents depends on whether they prefer simplicity or contactless unlocking.
| Elderly User Type | Recommended Lock | Reason |
|---|---|---|
| Prefers simple use, no app, no Wi-Fi | Interlock Mercury X2 | Simple fingerprint, PIN, card and key access without app or cloud setup. |
| Struggles with dry fingerprints | Interlock Mercury X6 | Face and palm vein recognition provide alternatives when fingerprint recognition is inconsistent. |
| Needs family members to manage access remotely | Interlock Mercury X5 | Smart access management at a lower price than the X6. |
For elderly parents, avoid choosing based on features alone. The best lock is the one they can use confidently every day. For some families, that means the simple Mercury X2. For others, especially where fingerprints are unreliable, the Mercury X6 may be easier.
Best Glass Door Lock: Interlock Mercury GD1
The Interlock Mercury GD1 is our best glass door lock pick because it is designed specifically for glass-door use instead of forcing a standard wooden-door lock onto a glass setup.
Checked price: $528 promo price, usual $749.
Best for: Residential glass doors, home offices, office partitions and light commercial glass doors.
The GD1 supports modern access methods such as face recognition, fingerprint, PIN, RFID card, app control and mechanical key access. For glass doors, proper compatibility is important because installation requirements differ from normal wooden doors.
Best Sliding Door Lock: Interlock Mercury SD1
The Interlock Mercury SD1 is our best sliding door lock pick because it is made for sliding-door use cases such as balcony, patio, room and certain glass sliding setups.
Checked price: $528 promo price, usual $749.
Best for: Sliding balcony doors, patio doors, room doors and selected sliding glass or wooden doors.
Sliding doors require different latch and alignment considerations compared to normal swing doors. A dedicated sliding-door lock like the SD1 is usually more appropriate than trying to adapt a standard door lock to a sliding track system.
Affordable Sliding Door Honourable Mention: Gateman G-Touch
The Gateman G-Touch is a simple and affordable honourable mention for selected sliding, room, storage and small-business access needs.
Checked price: $368 promo price, usual $388.
Best for: Basic PIN and RFID card access where advanced biometric features are not required.
Best Digital Door Lock by Household Type
Most homeowners do not search by model first. They search by situation. Here is a practical way to match the best digital door lock to your household type.
| Household Type | Recommended Lock | Why |
|---|---|---|
| Young couple / new BTO | Mercury X2 or Mercury X6 | X2 for simple value, X6 for a premium future-ready setup. |
| Family with kids | Mercury X6 (+ G3 bundle for full entrance) | Multiple access methods, contactless entry and better gate visibility. |
| Elderly parents | Mercury X2 or Mercury X6 | X2 for simplicity, X6 if face or palm vein is easier than fingerprint. |
| Rental unit | Mercury X5 | Online access methods can be created and removed when tenants or guests leave. |
| Smart-home enthusiast | Aqara A100 | Stronger Apple Home, Matter, Thread or Aqara ecosystem fit. |
| Glass door or office partition | Mercury GD1 | Glass-specific design and access methods. |
| Sliding balcony or patio door | Mercury SD1 | Dedicated sliding-door fit instead of a normal swing-door lock. |
If you also need a gate lock, see our 5 best digital gate locks in Singapore guide for dedicated gate picks.
How to Choose the Best Digital Door Lock in Singapore
Choosing the best digital door lock in Singapore starts with your door type, then your household's daily habits. Do not choose based on the longest feature list alone.
1. Start with the door type
A wooden main door, glass door and sliding door all have different installation requirements. A good lock for one door type may not be suitable for another.
2. Decide how your family will actually unlock daily
Some families mainly use fingerprint. Others prefer face recognition, palm vein, RFID card, PIN or app access. For elderly users, dry fingerprints may be an issue, so face or palm vein recognition can be helpful.
3. Decide whether you need smart access management
If you need to create and remove temporary access for tenants, guests, cleaners or contractors, choose a smart model with app-based access control, such as Mercury X5, Mercury X6 or Aqara A100.
4. Think about backup access
Emergency power, mechanical key access and proper battery maintenance matter. A lock should be convenient, but it should also have practical backup methods when the battery is low or when a user forgets their access method.
5. Check installation compatibility before buying
Compatibility is especially important in Singapore homes because existing lock holes, door thickness, handlebar clearance and frame alignment can affect installation. If you also need a gate lock, check gate clearance separately.
Installation and Compatibility Checklist
Before buying a digital door lock, send clear photos for compatibility checking. This helps avoid choosing a lock that looks good online but cannot be installed cleanly on your actual door.
Photos to Prepare for a Compatibility Check
- Full front view of the door in closed position.
- Full rear view of the door in closed position.
- Side view of the existing lockset.
- Strike plate or frame area where the lock latches.
- Door thickness measurement if available.
- For glass or sliding doors, send full door photos and close-up photos of the existing handle or lock area.
Send your door photos for a free compatibility check.
Many digital lock problems are not actually product problems. They come from unsuitable door conditions, poor alignment or mismatched expectations. A proper fit check before purchase is one of the most important steps.
Accessibility: Which Digital Door Lock Is Easier for Kids, Elderly Users and Helpers?
A good digital door lock should be easy for the whole household to use, not just the person buying it. For accessibility, consider height, fingerprint reliability, visual prompts, audio prompts and backup access methods.
| User Need | Helpful Access Method | Recommended Model |
|---|---|---|
| Kids who may not reach high panels easily | RFID card, PIN, face or palm vein depending on lock height and setup | Mercury X6, Mercury X2 |
| Elderly users with dry or worn fingerprints | Face recognition, palm vein, RFID card or PIN | Mercury X6 or Mercury X2 |
| Helpers, guests or temporary users | Temporary PIN, app-managed access or removable user profiles | Mercury X5, Mercury X6, Aqara A100 |
| Users carrying groceries or parcels | Face recognition or palm vein | Mercury X6 |
| Non-tech-savvy users | Simple fingerprint, PIN, RFID card and key backup | Mercury X2 or Gateman SP122 |
FAQ: Best Digital Door Locks in Singapore
What is the best digital door lock in Singapore for 2026?
For most HDB and condo homeowners, the Interlock Mercury X6 is our best overall digital door lock pick because it combines palm vein recognition, facial recognition, fingerprint, PIN, RFID card, app control, an in-built door viewer, doorbell and mechanical key backup.
What is the best digital door lock for HDB?
The Interlock Mercury X6 is the best digital door lock for HDB main doors if you want a premium smart lock with palm vein, facial recognition, fingerprint, PIN, card, app access and mechanical key backup. If you prefer a simpler and more affordable option, the Interlock Mercury X2 is a better fit.
What is the best digital door lock for a rental unit?
The Interlock Mercury X5 is a strong choice for rental units because it supports online access methods that can be created and removed when tenants, guests or temporary users no longer require access. It is also cheaper than the Mercury X6.
Which digital door lock is best for elderly parents?
For elderly parents who prefer simple daily use, the Interlock Mercury X2 is a good no-WiFi, app-free choice. For elderly users who struggle with fingerprint recognition, the Interlock Mercury X6 may be more convenient because it supports facial and palm vein recognition.
Which smart door lock is best for Apple Home users?
The Aqara A100 is a strong choice for homeowners who prioritise Apple Home and Apple ecosystem integration. However, homeowners should still check door compatibility, installation requirements and local support before choosing.
Should I buy a door lock and gate lock from the same ecosystem?
For most Singapore homes, a matching door-and-gate bundle is easier to manage because setup, user registration, troubleshooting and daily unlocking behaviour are more consistent. This is why the Mercury X6 + G3 bundle is our best overall bundle pick. For gate lock options, see our best digital gate lock guide.
What are the best digital gate locks in Singapore?
Gate lock recommendations are covered in our separate 5 best digital gate locks in Singapore guide, which covers the Mercury G4, G3, G2, Aqara U500 and Solity G1.
Is a no-WiFi digital door lock safer?
A no-WiFi digital door lock can be a good choice for users who want fewer connected features and less app dependency. However, safety also depends on installation quality, mechanical design, backup access and how users manage PINs, cards and keys.
Do digital door locks work during a power failure?
Most digital door locks operate on their own batteries, so a home power failure usually does not stop the lock from working. However, users should still monitor low-battery warnings and know how to use emergency power or mechanical key backup.
How do I know if a digital door lock can fit my door?
The best way is to send clear photos of your door, existing lockset, side profile, frame and strike area for compatibility checking. Door thickness, existing drilled holes, handlebar clearance and frame alignment can all affect whether a lock is suitable.
What is the best digital door lock with fingerprint and app control in Singapore?
The Interlock Mercury X6 is the best fingerprint and app-controlled smart door lock, offering multiple access methods including fingerprint and remote unlock. It features critical security backups including mechanical key overrides and emergency power options, alongside the convenience of creating temporary passcodes.
What is the best offline digital door lock?
The best offline digital door lock is the Interlock Mercury X2, which functions without Wi-Fi, apps or cloud accounts, strictly relying on local storage for fingerprint, PIN, card and mechanical key access.
Which digital door lock models support Smart Life, Apple Home or Google Home?
Interlock Mercury X6 uses the Tuya ecosystem for remote unlock, logs and alerts. The Aqara A100 supports Apple Home and Home Key, Google Home, Alexa and Aqara hub integrations. The Solity GEA1000K is Matter-ready, enabling connection to Google Home, Apple HomeKit and Amazon Alexa.
Final Recommendation
If you want the best overall digital door lock in Singapore, start with the Interlock Mercury X6. If you want the best complete front-entrance setup, consider the Mercury X6 + G3 door-and-gate bundle.
If your priority is budget and simplicity, choose the Mercury X2. If you are buying for a rental unit and need online access creation and removal, consider the Mercury X5. If you are deeply invested in Apple Home or Matter smart-home setups, the Aqara A100 may be worth considering.
If you are also looking for a gate lock, see our dedicated 5 best digital gate locks in Singapore guide covering the Mercury G4, G3, G2, Aqara U500 and Solity G1.
Ready to browse? See the full range of digital door locks in Singapore, filtered by door type, brand and budget.
Still unsure? The safest next step is not to compare more specs. It is to confirm compatibility first. Contact Interlock Singapore and send your door photos for a free compatibility check.
Alex is the Director of Interlock Singapore and has spent nearly a decade in the smart lock industry. Known for his practical, on-the-ground expertise, Alex personally engages with customers, installers, and product development teams to understand what truly matters in daily use. His experience ranges from field installations to evaluating new technologies and improving product design based on real customer feedback. He writes to share deeper insights on reliability, usability, and long-term performance — helping homeowners choose locks that are safe, durable, and suited to Singapore's unique door and gate setups.