Xiamen, China – Aug 20, 2025 – Akuvox today announced the launch of the S535, a versatile 5-inch facial recognition door phone featuring a modular design that adapts seamlessly to a wide array of applications. With thoughtful hardware innovation and scenario-based expandability, the S535 addresses the evolving demands of residential and commercial access control while meeting evolving user and environmental demands.

Modular Design for Diverse Scenarios

The S535’s modular architecture supports optional LTE, fingerprint, and induction loop modules, providing a customizable solution for diverse application scenarios. Particularly valuable for upgrading legacy intercom systems, the LTE module streamlines retrofitting by removing the need for extensive rewiring — installers can avoid replacing or adding complex cabling by leveraging wireless cellular connectivity. This innovation dramatically reduces deployment time, labor costs, and user disruption during system modernization.

Beyond technical convenience, the S535 prioritizes inclusivity. Its induction loop module enables seamless communication with the hearing-impaired by transmitting audio signals directly to compatible hearing aids. This direct audio delivery significantly enhances communication clarity and independence for users requiring assistive listening devices, demonstrating Akuvox’s commitment to accessibility.

Versatile and Secure Bluetooth Low Energy (BLE) Access

The S535 supports multiple BLE-based unlocking methods alongside facial recognition, fingerprint (fingerprint module required), PIN codes, RFID cards, QR codes, and mobile app credentials. BLE features include the Akuvox Bkey hardware token and intuitive options like tap-to-go, shake-to-unlock, and contactless entry via the Akuvox SmartPlus app.

In today’s security environment, BLE access addresses the growing demand for contactless and flexible authentication. Unlike traditional credentials, BLE combines low power consumption with short-range proximity detection, offering convenience and enhanced protection against unauthorized access. 

Installation-Optimized Modular Connectivity

A key advantage of the S535 lies in its streamlined, installation-friendly modular design. To further reduce installation complexity, S535 modules connect via a single dedicated interface on the base unit, eliminating the need for separate cabling for power and data. “Traditional door phones require additional wiring for the add-on module,” explained Zhitao Lu, Senior Product Manager at Akuvox. “In contrast, the S535 centralizes connectivity through one interface, significantly reducing wiring complexity, installation time, and potential failure points.”

Built for Challenging Environments

The S535 is engineered to perform reliably in diverse and harsh environments. With IP66-rated weatherproofing and IK08 impact resistance, it withstands dust, water, and physical impacts effectively. Its operational temperature range from -40°C to +55°C ensures stable function in extreme climates — whether installed in cold outdoor entrances or scorching industrial settings.

Conclusion

The Akuvox S535 delivers tailored functionality that accommodates modern access challenges—from legacy system upgrades and multi-modal verification to enhanced communication accessibility and environmental resilience. S535 empowers integrators and end-users alike with a smarter, simpler, and more inclusive video door phone solution.

For more information, visit https://www.akuvox.com/productsDisp?pid=113.

About Akuvox

Akuvox is a global leading provider of smart intercom and smart home products and solutions. It is committed to unleashing the power of technologies to improve people's lives with better communication, greater security, and more convenience. Encompassing artificial intelligence, SIP, Android, cloud, security, and other advanced technologies, Akuvox continuously drives breakthrough changes in the industry and creatively delivers an unrivaled portfolio of smart intercom and smart home products and solutions. It has been deployed and used daily in more than 110 countries and regions, meeting customer needs in various vertical markets that range from residential to commercial, from healthcare to public safety.

Media Contact

Jennifer Cai

press@akuvox.com