Kaadas Digital Lock Alternatives: 2025 Guide Using the K20 Pro Max as Benchmark
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Looking for a smart digital lock but curious if something might suit your needs even better than Kaadas? This guide will help you confidently compare top digital door locks in Singapore—all measured against the innovative Kaadas K20 Pro Max Mortise model. The goal: empower every reader to make a well-informed, regret-free choice for their home.
Why Use the Kaadas K20 Pro Max as the Gold Standard?
The K20 Pro Max is Kaadas’ flagship, offering cutting-edge features like facial and fingerprint recognition, a vibrant HD video door viewer, integrated two-way communication, and strong app control. Its high-capacity battery, sleek build, and solid brand reputation make it a natural yardstick for today’s most advanced digital locks. By using this as our baseline, we ensure every alternative is genuinely a worthy option—never a step down.
Top Kaadas K20 Pro Max Alternatives (Digital Door Locks Only)
1. Interlock Mercury X6: Next-Gen Biometrics and Smart Home Excellence
Usual Price: $799
Interlock’s Mercury X6 takes biometric security a step further with palm vein recognition and 3D live facial mapping—technologies that are contactless, extremely accurate, and ideal for hygienic daily use. Alongside fingerprint, PIN, RFID, and mechanical keys, it offers up to eight ways to unlock your door.
This lock also impresses with a vibrant IPS HD touchscreen that replaces the traditional peephole and integrates a real-time video intercom. Built to withstand Singapore’s climate, the thick & strong alloy body, USB-C emergency power option, and Tuya smart home compatibility set it apart for tech-savvy homeowners looking for future-proof convenience. The Mercury X6’s app features detailed visitor logs and remote control options, backed by a strong local support system. It’s slim, elegant, and specifically designed for HDB and condo doors without needing door modifications.
2. Aqara D100 Zigbee: Seamless Smart Home Integration

Usual Price: $869
For those deeply rooted in smart home ecosystems like Apple HomeKit or Zigbee, the Aqara D100 Zigbee is a standout. Supporting nine unlocking methods, including fast fingerprint scanning, NFC, voice control, and app-based remote management, it blends security with convenience.
Its fire-rated construction and tamper alerts cater to safety-conscious users, while Apple HomeKit integration allows effortless voice control via Siri and automations alongside other connected devices. This makes Aqara ideal for renters or homeowners who want a reliable lock fully woven into their smart home fabric.
3. Philips EasyKey 9300: Reliable Simplicity with Smart Features
Usual Price: $1180
Philips brings decades of trusted security with the EasyKey 9300, balancing sophisticated features with user-friendly operation. It supports fingerprint recognition for up to 100 users, PIN codes, RFID cards, and integrates with the Smart Life app for remote control and user management.
This lock prioritises security with dual-authentication options, fake PIN protection, and a system lock after multiple failed attempts. Its push-pull design and fire rating align well with local housing standards, making it a solid choice for families looking for a straightforward, robust solution with good app control.
4. Hafele PP8100 Push-Pull: Layered Protection and Fire Safety

Usual Price: $1099
Hafele’s PP8100 is tailored for users who emphasise layered security and fire safety. With fingerprint, PIN, RFID, and Bluetooth unlocking, it also features tampering, burglary, and heat alarms, and boasts a 60-minute fire rating.
Its optional Z-Wave integration appeals to future-proofing smart homes or office spaces, supporting up to 100 users. This lock is especially suitable for households or businesses that seek stringent security protocols combined with emergency responsiveness.
5. Solity GEA 1000BK: Robust for Busy Homes and Small Businesses

Usual Price: $999
With impressive user capacity—supporting up to 100 fingerprints, 100 cards—and Wi-Fi-based remote unlocking, Solity’s GEA 1000BK caters to busy families and commercial settings alike. It features ultra-fast fingerprint recognition and built-in fire alarms, alongside real-time notifications and one-time access codes.
Its design balances speed, security, and smart features, offering peace of mind when multiple users or frequent access is required—making it an excellent alternative for those who want advanced app features without compromise.
Making an Informed Choice
Why consider these alternatives? Each brings strengths beyond what Kaadas K20 Pro Max offers—from cutting-edge contactless biometrics to richer smart home integration, enhanced fire safety, or expanded user capacity.
Choosing a smart door lock starts with understanding your home’s needs:
- Security and hygiene needs: Locks such as the Interlock Mercury X6 offer hygienic, touchless entry methods perfect for family homes.
- Smart home ecosystem: Aqara D100 Zigbee shines in Apple HomeKit and Zigbee environments.
- User management: Solity and Philips provide excellent multi-user support and app flexibility.
- Fire safety and alarms: Hafele PP8100 emphasises emergency preparedness and layered protection.
How Do These Compare to Kaadas K20 Pro Max?
| Model | Unlock Methods | Smart Home Integration | Battery Type & Life | Unique Strengths | Approx. Price (SGD) |
|---|---|---|---|---|---|
| Kaadas K20 Pro Max | Face, Fingerprint, PIN, RFID card, Mechanical key, Mobile app | Yes (Wi-Fi-enabled, proprietary) | Rechargeable lithium, 6–12 months | HD video door viewer, 2-way communication, loitering alerts | $1,200+ |
| Interlock Mercury X6 | Palm vein (contactless), Face, Fingerprint, PIN, RFID, Key, App | Tuya IoT platform | Rechargeable lithium, USB-C emergency | Contactless palm vein, large HD display, 2-way communication, loitering alerts | $799+ |
| Aqara D100 Zigbee | Fingerprint, PIN, RFID, NFC, Voice, App, Mechanical key | Apple HomeKit, Google Assistant, Zigbee | Rechargeable USB-C, up to 12 months | Ultra-fast fingerprint, 9 unlock methods, deep ecosystem integration | $869+ |
| Philips EasyKey 9300 | Fingerprint, PIN, RFID, Mechanical key, Bluetooth, Wi-Fi, App | Smart Life ecosystem | AA batteries, ~12 months | Fast fingerprint, dual verification, practical app | $1,180+ |
| Hafele PP8100 | Fingerprint, PIN, RFID, Mechanical key, Bluetooth | Optional Z-Wave smart home integration | AA batteries, ~12 months | Fire-rated, multiple alarms, privacy mode | $1099+ |
| Solity GEA 1000BK | Fingerprint, PIN, RFID, Mechanical key, Wi-Fi App | Built-in Wi-Fi | Rechargeable lithium, 6–12 months | Supports 100 fingerprints, real-time alerts | $999+ |
| Xeno Alexi Pro Max | Face, Palm vein, Fingerprint, PIN, RFID, App, Mechanical key | Smart home compatible (multiple) | Rechargeable lithium, USB-C emergency | Fire-rated, two-way sync, video intercom | $1,180+ |
Final Thoughts: Your Decision, Made Clear
The Kaadas K20 Pro Max is a premium leader, but today’s best alternatives (led by Interlock Mercury X6) bring user value through touchless biometrics, seamless smart home integration, and modern, user-friendly designs. Begin with your home’s needs: does family safety, automation, or ease-of-use drive your choice? Use this guide as a trusted step towards the most practical and future-ready digital door lock for your home.