A modern smart lock does not open just one way — it offers a whole toolkit of entry options, and the best lock for you is the one whose mix matches how your household lives. Understanding the different smart lock access methods — fingerprint, face recognition, PIN, NFC, RFID, Bluetooth, Wi-Fi and the mechanical key — is the key to buying wisely. This guide breaks down each method, what it is best for, and how to choose the right combination.
The smart lock access methods at a glance
Here is the quick map of smart lock access methods and what each is best for:
- Fingerprint — everyday family access
- Face recognition — hands-free entry
- PIN / password — visitors and family without biometrics
- NFC — smartphone and card tap access
- RFID card — hotels, offices and shared spaces
- Bluetooth — nearby phone access
- Wi-Fi — remote access from anywhere
- Mechanical key — emergency backup
Biometric access methods
Fingerprint
The workhorse of smart lock access methods: fast, personal and impossible to forget at home. Ideal as the primary method for the whole family, with support for multiple fingerprints per user.
Face recognition
True hands-free entry — perfect when your arms are full. Best on premium locks with 3D/infrared sensing and liveness detection for reliability and anti-spoofing.
Code and card access methods
PIN / password
A shareable code for guests, children and domestic help who do not want to enrol biometrics. Temporary, time-limited PINs are especially useful for visitors and services.
NFC
Tap your phone or an NFC tag to enter. Convenient for smartphone users and a nice backup to biometrics.
RFID card
A physical tap card, familiar from hotels and offices. Great for shared or commercial spaces and for elderly family members who prefer a simple card.
Connectivity access methods: Bluetooth vs Wi-Fi
These two smart lock access methods are often confused, but they serve different needs:
Bluetooth
Connects your phone to the lock locally, within about 10 metres. Simple, low-power and works without internet — ideal for app unlocking when you are near the door.
Wi-Fi
Connects the lock to the internet for remote access, alerts and management from anywhere. Worth it if you travel, receive deliveries or manage access remotely — at the cost of more battery use. Our Wi-Fi vs Bluetooth smart lock guide compares them in depth.
The one method you must never skip
Mechanical key
Every serious lock keeps a concealed physical keyhole as the ultimate fail-safe. Whatever mix of smart lock access methods you choose, a mechanical key backup (and ideally USB-C emergency power) is non-negotiable.
How to choose the right combination
- Family home: fingerprint + face for members, PIN for guests, mechanical key backup.
- Apartment/rental: fingerprint + PIN + temporary codes, app over Bluetooth.
- Villa/large home: add face recognition and Wi-Fi remote access.
- Office/hotel: RFID cards + PIN + app management and access logs.
- Frequent travellers: Wi-Fi remote access and alerts on top of biometrics.
The best locks give you most or all of these smart lock access methods together, so every person and situation is covered. See our smart door lock buying guide to match features to your home.
Where Covlor fits in
Covlor® builds Smart Door Locks that bring these access methods together in one dependable device. Models such as the CR L45, CR L51, CR L88 and CR L99 combine fingerprint, face recognition, PIN, RFID/NFC card, app (Bluetooth/Wi-Fi) access and a mechanical key backup — so families, guests, staff and travellers each get the right method. Every lock is made to order and tested before shipping, backed by a 2-year warranty and a digital warranty card you can verify online. Browse the range in the Covlor store, and read why quality comes first in Covlor’s manufacturing approach.
Frequently asked questions
What are the main smart lock access methods?
Fingerprint, face recognition, PIN/password, NFC, RFID card, Bluetooth app, Wi-Fi remote access and a mechanical key. The best locks offer several so you can match the method to each person and situation.
Which access method is most secure?
Quality biometrics (fingerprint and 3D face with liveness detection) are very secure for daily use, backed by encrypted PIN and card options. Security depends on build quality, and a mechanical key backup is essential.
Do I need Wi-Fi, or is Bluetooth enough?
Bluetooth is enough for local, near-door app access. Choose Wi-Fi only if you want remote unlocking, alerts and management while away from home.
Find a lock with the right mix in the Covlor Smart Door Lock store, and read next about smart locks for rentals and Airbnb.
