Best Smart Lock Models in Singapore 2026: Door, Gate & Bundle Picks

The best smart lock in Singapore depends on your door type, gate clearance, 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.

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 full front-entrance upgrade, our best overall door-and-gate bundle is the Interlock Mercury X6 + Mercury G3 bundle, pairing a flagship smart door lock with a dual-camera smart gate lock designed for Singapore homes.

Jump to:

| Summary Table | Best Overall | Best HDB Door Lock | Affordable Door Lock | Rental Unit | Door Honourable Mentions | Best HDB Gate Lock | Most Secure Gate Lock | Affordable Gate Lock | Best Bundle | By Household Type | How to Choose | Compatibility | FAQ |

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Summary: Best Smart Locks in Singapore 2026

The table below gives a quick comparison of our 2026 expert picks by category, price, promo status and best-use case. This is designed to help homeowners compare quickly before reading the detailed sections below.

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Best Digital Lock in Singapore Overall: Interlock Mercury X6

The Interlock Mercury X6 is our pick for the best digital lock in Singapore overall because it gives homeowners the strongest all-round balance of convenience, security features, smart access and daily usability.

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.

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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.

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Best Digital Lock for HDB Door: Interlock Mercury X6

The best digital 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 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.

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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.

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.

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Best Digital Lock for Rental Unit: Interlock Mercury X5

The Interlock Mercury X5 is our recommended digital lock for rental units because it gives landlords and property owners smarter access management at a lower price than the Mercury X6.

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.

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Honourable Mentions for Smart 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.

The A100 is a good fit for homeowners who want the digital 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.

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.

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Best Digital Lock for HDB Gate: Interlock Mercury G3

The Interlock Mercury G3 is our pick for the best digital lock for HDB gates because it is designed around real Singapore gate needs: visitor visibility, parcel awareness, smart access and gate-level security.

The G3 stands out because of its dual-camera design. A normal gate lock focuses mainly on unlocking. The Mercury G3 adds visual awareness by helping homeowners see visitors and low-angle activity such as parcel placement near the floor.

This makes it useful for families who receive deliveries, live along common corridors, or want better entrance visibility without relying only on a separate CCTV system.

Consider another model if: your top priority is mechanical key redundancy from both sides of the gate. In that case, the Mercury G4 may be more suitable.

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Most Secure Digital Lock for HDB Gate: Interlock Mercury G4

The Interlock Mercury G4 is our pick for the most secure digital lock for HDB gates because of its DualKey design, which provides mechanical key access from both indoor and outdoor sides.

Many smart gate locks focus heavily on convenience. The Mercury G4 is positioned differently: it is for homeowners who still value physical fallback security and want a more dependable emergency access design.

This makes it suitable for families who worry about lockouts, elderly households where backup access matters, or homeowners who prefer a security-first gate lock instead of a purely camera-focused model.

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Most Affordable Digital Gate Lock: Interlock Mercury G2

The Interlock Mercury G2 is our pick for the most affordable digital gate lock because it gives homeowners advanced gate features at a lower price point than the G3 and G4.

The G2 is suitable for homeowners who want a smart gate lock with modern access methods, but do not need the G3’s dual-camera setup or the G4’s DualKey positioning.

For many households, it delivers the important everyday benefits: keyless gate access, face recognition, palm vein, app control, PIN, card and mechanical backup.

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Honourable Mention for Gate Lock: Aqara U500 Smart Gate Lock

The Aqara U500 Smart Gate Lock is an honourable mention for smart-home users who want Matter over Thread, Apple Home Key and a more ecosystem-driven gate lock.

The U500 is a strong option for homeowners already building around Apple Home, Matter and Thread. However, for homeowners who care more about Singapore gate-specific visual monitoring, the Mercury G3 remains our stronger everyday gate recommendation.

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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.

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.

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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.

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.

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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.

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.

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Best Digital Lock for Face Recognition and Palm Vein: Interlock Mercury X6

The best digital 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.

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Best No-WiFi Digital Lock: Interlock Mercury X2

The best no-WiFi digital 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.

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Best Digital Lock for Elderly Parents: Mercury X2 or Mercury X6

The best digital lock for elderly parents depends on whether they prefer simplicity or contactless unlocking.

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.

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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.

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.

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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.

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.

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Best Smart 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 smart lock to your household type.

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How to Choose the Best Smart Lock in Singapore

Choosing the best smart lock in Singapore starts with your door or gate type, then your household’s daily habits. Do not choose based on the longest feature list alone.

1. Start with the door or gate type

A wooden main door, metal gate, 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, Aqara A100 or selected smart gate locks.

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, gate gap, door-and-gate distance, handlebar clearance and frame alignment can affect installation.

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Installation and Compatibility Checklist

Before buying a digital 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 or gate.

Many digital lock problems are not actually product problems. They come from unsuitable door conditions, poor alignment, tight gate clearance or mismatched expectations. A proper fit check before purchase is one of the most important steps.

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Accessibility: Which Smart Lock Is Easier for Kids, Elderly Users and Helpers?

A good smart 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.

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FAQ: Best Smart Locks in Singapore

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Final Recommendation

If you want the best overall smart 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, Aqara models such as the A100 or U500 may be worth considering.

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 or gate photos for a free compatibility check.