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A Nuki smart lock is a retrofit device that mounts over your existing euro-cylinder lock and turns the key for you, adding app control, auto-unlock and remote access without replacing the whole lock or drilling the door. It is a popular choice among Singapore homeowners with European-style cylinder doors — common on some condos and landed homes — who want to keep their existing keys while gaining phone and voice control. This guide covers the Nuki lineup available to Singapore buyers and how to tell whether Nuki is the right fit for your door.
Because Nuki is designed around the euro-cylinder standard rather than the mortise locks on most HDB flats, we have been honest about where it fits and where a local mortise digital lock makes more sense. We focused on the Nuki range you can realistically source and run in Singapore, with an alternative for doors Nuki cannot fit, so you can decide with clear eyes and a realistic SGD budget.
What to look for in Singapore
- Check your door has a euro-profile cylinder with a thumb-turn or a key left inside — Nuki mounts over this, so it will not fit a typical HDB mortise lock or a knob cylinder.
- For Singapore Wi-Fi and remote access, confirm whether you need the Pro model (Wi-Fi built in) or a separate Bridge, as this affects remote unlocking and cost.
- Consider the Nuki Keypad if you want PIN or fingerprint entry for family and helpers who do not use the app.
- Think about power — battery-powered Nuki units are convenient but need recharging or replacement, so check the expected life and low-battery alerts.
- Verify smart-home compatibility (Matter, Apple Home, Google Home, Alexa) if you want the lock to join your wider setup and voice assistants.
- Factor in Singapore’s humidity for any outdoor-facing components, and keep the retrofit mechanism clean so it turns the cylinder smoothly over time.
- Because Nuki is often a grey/parallel import here, confirm local warranty, support and firmware updates before buying, and buy from a reputable seller.
- If your door is a standard HDB mortise type, be realistic — a local mortise digital lock will fit better and come with proper installation and service.
At a glance
| Model | Best for | Key spec | Indicative price | Rating |
|---|---|---|---|---|
| Nuki Smart Lock Pro | Overall (Wi-Fi built in) | Retrofit, Wi-Fi, Matter, auto-unlock | $400–$650 | ★★★★½ |
| Nuki Smart Lock (latest gen) | Value retrofit | Retrofit, Bluetooth, Bridge optional | $300–$500 | ★★★★ |
| Nuki Smart Lock Go | Simple app-only entry | Lightweight retrofit, no auto-unlock | $250–$400 | ★★★★ |
| Nuki Keypad 2.0 | PIN/fingerprint add-on | Adds code + fingerprint entry | $100–$200 | ★★★★ |
| Local mortise digital lock (Kaadas/Yale) | HDB mortise doors | Fingerprint + PIN + card, installed | $400–$900 | ★★★★½ |
The picks
Editor’s Choice
Nuki Smart Lock Pro
The Nuki Smart Lock Pro is the pick of the range for Singapore homes with a euro-cylinder door, thanks to built-in Wi-Fi for remote unlocking and status, Matter support and reliable auto-unlock as you approach. It keeps your existing keys while adding full app and voice control. Confirm your cylinder is compatible and buy from a reputable seller, as local support for Nuki here can be limited.
Pros
- Built-in Wi-Fi for remote access
- Keeps existing keys, no door damage
- Matter and voice-assistant support
Cons
- Only fits euro-cylinder doors, not HDB mortise
- Local warranty/support can be limited
Best Value
Nuki Smart Lock (Latest Gen)
The standard latest-generation Nuki Smart Lock gives you the same retrofit convenience — app unlock, auto-unlock and access sharing — at a lower price, using Bluetooth with an optional Bridge or the Pro upgrade for remote Wi-Fi. It is a sensible choice if you are mostly at home and want app control without paying for the Pro. Again, a euro-cylinder door is essential.
Pros
- Lower cost than the Pro
- Retrofit convenience, keeps your keys
- Optional Bridge for remote access
Cons
- Remote access needs Bridge or Pro
- Euro-cylinder doors only
Best for X
Nuki Keypad 2.0
The Nuki Keypad 2.0 is the accessory that makes a Nuki setup family-friendly, adding PIN codes and fingerprint entry so children, helpers or guests can get in without the app or a phone. It pairs with any Nuki Smart Lock and mounts beside the door. A near-essential add-on if not everyone in the household will use app-based access.
Pros
- Adds PIN and fingerprint entry
- Great for family and helpers
- Simple pairing with any Nuki lock
Cons
- An add-on cost on top of the lock
- Needs a compatible Nuki Smart Lock
Best for X
Local Mortise Digital Lock (Kaadas / Yale)
If your door is a standard HDB mortise type, Nuki simply will not fit — and a local mortise digital lock from Kaadas or Yale is the honest better choice. You get fingerprint, PIN, card and app entry, proper local installation and island-wide warranty, all designed for Singapore doors. Consider this the sensible alternative when a euro-cylinder retrofit is not an option.
Pros
- Designed for HDB/condo mortise doors
- Proper local installation and warranty
- Full biometric and PIN entry
Cons
- Not a retrofit — replaces the lock
- Not the Nuki experience if you wanted it specifically
The verdict
For a Singapore home with a euro-cylinder door, the Nuki Smart Lock Pro is the best pick thanks to built-in Wi-Fi, auto-unlock and Matter support — add the Keypad for family entry; but if you have a standard HDB mortise door, a locally installed Kaadas or Yale digital lock is the honest better choice.
Frequently asked questions
Does Nuki smart lock work on HDB doors in Singapore?
Usually not, because Nuki is designed to mount over a euro-profile cylinder lock, while most HDB flats use mortise locks that Nuki cannot fit. Nuki suits condos or landed homes with euro-cylinder doors; if you have a standard HDB mortise door, a local digital lock from Kaadas, Yale or Philips is the appropriate choice.
Can I get remote access with a Nuki lock in Singapore?
Yes — the Nuki Smart Lock Pro has Wi-Fi built in for remote unlocking and status from anywhere, and the standard model can achieve the same with a separate Bridge. Without Wi-Fi, control is Bluetooth-range only, so choose the Pro or add a Bridge if you want to unlock the door while away.
Is Nuki available with local warranty in Singapore?
Nuki is often sold here through parallel or grey-import channels, so local warranty and support can be limited compared with mainstream digital lock brands. Buy from a reputable seller, confirm what warranty and firmware support you get, and weigh that against a locally supported mortise lock before deciding.
How does Nuki auto-unlock work, and is it safe?
Auto-unlock uses your phone’s location and Bluetooth to detect you approaching and turns the cylinder as you reach the door, so you walk straight in. It is convenient, but you can disable it if you prefer to unlock manually, and Nuki uses encrypted connections; as with any smart lock, keep firmware updated and use strong app security.
Do I keep my existing keys with a Nuki lock?
Yes — that is one of Nuki’s main advantages. It mounts over your existing cylinder from the inside and turns the key for you, so your normal keys still work as a backup and you avoid drilling or replacing the lock. This makes it appealing for renters or anyone who wants a reversible upgrade.
Related guides
- More Smart Home guides
- Best Aqara Smart Lock D200i in Singapore
- Best Igloohome Smart Lock in Singapore
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