Digital Lock vs Key Lock: Which Is The Best Choice For Your Home?

Modern technology has introduced many solutions that make daily life more convenient. One example is the digital lock, which provides keyless access and may include additional security and smart features depending on the model.

But if you already have a conventional key lock, you may wonder whether upgrading to a digital lock is necessary. This guide compares digital and key locks based on access methods, security features, durability, installation, convenience, cost and power requirements to help you decide which may suit your home better.

If you have already decided to go digital but are unsure what features to look for, read our guide on how to choose a digital or smart door lock in Singapore.

Also known as conventional locks, key locks are your standard door locks with a simple door handle and a locking mechanism to secure your door. As the name goes, they use physical keys to engage and disengage the lock to ensure your property. Their longevity stems from the fact that they have been in use for a very long time, on top of how easy replacing one is with the help of a professional.

Most doors in Singapore use a mortise lock, which features a durable metal locking mechanism embedded within the door frame. The mortise lock is popular because it provides significant security thanks to its robust locking mechanism and overall construction, making it difficult for anyone to try and pry the lock open. Other common locks you will find include simple door knobs with either an integrated locking mechanism or an external one positioned below the door knob.

While some houses will have doors that share one key, it is common for some homeowners to have multiple keys for different locks around their property.

Digital locks do not require a physical key to engage or disengage the lock (or bolt) but feature multiple access methods, including using your fingerprint pattern and facial features. Many digital locks come with multiple access methods: some are standard, while others are optional add-ons.

● PIN codes.
● Fingerprint scanning.
● Facial recognition.
● Palm recognition.
● Radio-frequency identification (RFID) tags/cards.

A digital lock aims to provide maximum convenience, allowing you to freely enter and exit your home without needing a physical key; the keyless nature of the digital lock makes it so much easier to quickly enter and exit your home without compromising your property’s security. Each digital lock is purpose-built to give you plenty of security assurance thanks to its high-quality construction and security features and various extras that add to their ease of use.

To understand the different lock designs and access options available, see our guide to types of digital door locks.

With that quick primer in mind, comparing the advantages of digital and key locks should help you decide whether to stick with your current lock or opt for a welcome upgrade to improve your property’s security further.

Key locks rely on a mechanical locking system and physical key. Their security depends on factors such as the type of lock, construction, installation quality and how the door itself is secured.

Digital locks add electronic access methods such as PINs, fingerprint scanning or RFID. Depending on the model, they may also include features such as tampering alarms, access notifications, temporary PIN codes or built-in cameras.

However, digital does not automatically mean more secure in every situation. Security features vary significantly between models, so the quality of the lock and its installation remain important considerations.

Learn more about whether digital locks are safe and the security features you can compare before purchasing.

Key locks are primarily made from sturdy metals and other materials and are reasonably durable unless acted on by a significant external force. However, that does not mean they are ineffective since they can still provide a much-needed buffer while you contact the authorities or alert your neighbours for assistance. Even so, this is still not ideal for your property’s safety. Key locks are also vulnerable to rusting because of their primarily metal composition, especially if they are exposed to the elements or not cared for after years of use.

Digital locks are made from a mix of materials and generally have additional features to protect them from the elements. They contain delicate electronic components that are easily damaged, so extra insulation and protection are necessary. While they are still vulnerable to physical force, built-in alarms reduce the chances of intrusions (since the alarm will immediately go off), greatly helping increase their overall durability and longevity.

Installation requirements depend on the existing door, lock type and the model you plan to install.

Replacing one conventional mechanical lock with another may be relatively straightforward if the dimensions and locking mechanism are compatible. Digital locks may require additional work depending on their size, mortise, door thickness and existing cut-outs.

Before purchasing a digital lock, check whether it is compatible with your current door or gate and whether modifications are required. Professional installation can also help ensure that the lock is fitted and aligned correctly.

For more details, see our digital and smart door lock installation guide.

Key locks are not the most convenient door locks, given the odd fumbling with physical keys that can sometimes happen. At best, you only delay yourself by a few seconds; at worst, when you have multiple keys, that can take a few minutes while you frantically look for the right key. Again, you get used to the routine, but sometimes you may rush for time and scramble to find where you placed your keyring. Moreover, a brand-new digital lock’s keyless methods will make that physical key routine redundant (and even minimise headaches, too).

Whether you prefer keying in your PIN code, swiping with an RFID tag, or even facial recognition using the digital lock’s built-in camera, your digital lock’s many features make it a massive time-saver for getting into your property without sacrificing security. Moreover, some models also feature built-in power supplies and emergency charging systems, letting you quickly recharge them on the fly with something as simple as an AA battery or a power bank.

Best of all, digital locks provide unique customisation options that make securing your property more efficient and effective. For instance, specific models may provide one-time passcodes that you can give to family and friends who may be stopping by while you are away. It is also possible for schedule-specific passcodes that only allow access on certain days or dates while rendering them unusable outside of that timeframe. It is also possible to use an app that connects to your digital lock to change your digital lock’s functions on the fly, giving you even more control over what you can do to protect your property.

Conventional key locks generally have a lower upfront cost because they do not include electronic access methods or smart features.
Digital lock prices can vary considerably depending on the brand, access methods, smart connectivity, biometric features, door or gate compatibility and installation requirements.

Rather than comparing price alone, consider whether you will actually use the additional features and what warranty or after-sales support is included.

If you want to compare current options, see our guide to the best digital door locks in Singapore.

A conventional key lock does not require electricity or batteries to operate.

Most digital locks, on the other hand, rely on batteries to power their electronic functions. Battery type, expected lifespan and low-battery warning systems vary depending on the model.

Some digital locks also provide an emergency power option or mechanical backup key if the battery becomes depleted. Check the manufacturer’s instructions for the specific backup method provided with your lock.

Learn more about what happens when a digital door lock battery dies.

If keyless access and additional smart features suit your household, the next step is to compare digital locks based on your door or gate compatibility, preferred access methods, security features and budget.

You can explore Eazea’s range of digital locks in Singapore to compare the available models, or read our complete buying guide before deciding.