How Does the G4 Doorbell Pro Work? (Correct Answer)

How Does the G4 Doorbell Pro Work? (Correct Answer)

The UniFi G4 Doorbell Pro is an advanced smart video doorbell that provides enhanced home security and convenience. It combines cutting-edge hardware with intelligent software to help monitor your home's entryways. In this comprehensive guide, we'll explore how this device operates and its key features.

How Does the G4 Doorbell Pro Work?

How Does the G4 Doorbell Pro Work

The G4 Doorbell Pro uses a high-definition 5MP camera and motion sensor to detect activity at your door. When motion is detected, it records video and sends an alert to your smartphone app. Through the app, you can view a live video feed, communicate with visitors via two-way audio, and store recordings locally or in the cloud. 

It can be installed wired to existing doorbell wiring or wirelessly using its rechargeable battery. Advanced features like person detection, night vision, and customizable motion zones provide enhanced security monitoring for your home's entrances.

Keep Reading: G4 Doorbell Pro Homekit Apple

Let’s Talk About Hardware Overview

At its core, the G4 Doorbell Pro is a powerful security camera equipped with a range of components that work together seamlessly.

1. Camera and Optics

The heart of the G4 Doorbell Pro is its high-quality 5MP camera that captures crystal-clear video. It features a wide 180-degree field of view to cover your entire doorway area. Additionally, the camera has auto-focus capabilities and high dynamic range (HDR) for improved image quality in challenging lighting conditions.

2. Microphone and Speaker

The built-in microphone and speaker enable two-way audio communication, allowing you to converse with visitors through the doorbell. This feature is enhanced by noise-cancellation technology for clearer conversations.

3. Motion Sensor

The G4 Doorbell Pro is equipped with a passive infrared (PIR) motion sensor that detects movement in its field of view. This sensor triggers video recording and alerts, ensuring you never miss a visitor or potential threat.

4. Wi-Fi Antenna

To connect to your home network, the doorbell utilizes a built-in Wi-Fi antenna. This allows it to communicate with the internet and your mobile devices.

5. Power Source

The G4 Doorbell Pro can be powered through existing doorbell wiring or via a rechargeable battery pack, providing flexibility for both wired and wireless installations.

6. Additional Components

Other essential components include a status LED, infrared (IR) LEDs for night vision, and a built-in chime.

Software and Intelligent Features

The G4 Doorbell Pro's software is just as impressive as its hardware, offering a range of smart features that enhance its functionality.

1. Motion Detection and Person Recognition

The doorbell's motion detection capabilities are powered by advanced algorithms that can distinguish between human and non-human movement. This person detection feature reduces false alerts from trees, animals, or other environmental factors.

2. Two-Way Audio

The two-way audio functionality allows you to communicate with visitors through the doorbell's built-in microphone and speaker. You can have real-time conversations or play pre-recorded messages, such as "Please leave the package by the door."

3. Cloud and Local Storage

Video footage captured by the G4 Doorbell Pro can be stored either in the cloud through a subscription-based service or locally on a microSD card. This provides flexibility and ensures you never miss an important event.

3. User Interaction

Interacting with the G4 Doorbell Pro is straightforward and intuitive, thanks to its user-friendly design.

4. Mobile App

The UniFi Protect mobile app serves as the primary interface for controlling and monitoring the doorbell. Through the app, you can view live video streams, configure settings, receive alerts, and access recorded footage.

5. Doorbell Button

Like a traditional doorbell, the G4 Doorbell Pro has a physical button that visitors can press to announce their arrival. This triggers the doorbell's chime and sends a notification to your mobile device.

6. Pre-Recorded Messages

Aside from two-way audio communication, the doorbell also supports pre-recorded messages that can be played automatically when the button is pressed. This feature is handy when you're unavailable to answer the door.

Installation Process

Installing G4 Doorbell Pro is relatively straightforward and can be done in two ways: wired or wireless.

1. Wired Installation

For a wired setup, the doorbell connects to your existing doorbell wiring, eliminating the need for batteries. This process involves identifying the correct wires, connecting them to the appropriate terminals on the doorbell, and restoring power.

2. Wireless Installation

If your home doesn't have pre-existing doorbell wiring or you prefer a wire-free installation, the G4 Doorbell Pro can be set up wirelessly using its rechargeable battery pack. This option provides more flexibility in terms of placement but requires periodic battery recharging.

3. App Setup

Regardless of the installation method, the final step involves pairing the doorbell with the UniFi Protect app on your mobile device. The app walks you through the process, allowing you to configure settings, connect to your Wi-Fi network, and customize the doorbell's behavior.

Troubleshooting Tips

While the G4 Doorbell Pro is designed for hassle-free operation, issues may occasionally arise. Here are some common problems and their solutions:

  • Wi-Fi Connectivity Issues: If the doorbell is having trouble connecting to your Wi-Fi network, try moving it closer to your router, checking for interference, or resetting your network settings.
  • Wiring Problems: For wired installations, ensure the wires are properly connected and that the transformer is providing the correct voltage. Consult the installation manual or seek professional assistance if necessary.
  • False Alerts: If you're receiving too many false alerts, adjust the motion detection sensitivity settings or define specific activity zones within the app to focus on the most relevant areas.
  • Audio Quality: If the two-way audio quality is poor, check for any obstructions near the microphone or speaker and ensure the noise-cancellation feature is enabled.

How is the G4 Doorbell Pro powered?

The G4 Doorbell Pro can be powered in two ways: by connecting it to existing doorbell wiring or using the included rechargeable battery pack for wireless operation.

What resolution does the G4 Doorbell Pro record in?

The G4 Doorbell Pro captures video at a resolution of 2560 x 1920 pixels, providing 5 megapixels (MP) of high-definition footage.

Does the G4 Doorbell Pro have night vision?

Yes, the G4 Doorbell Pro is equipped with infrared (IR) LEDs that enable clear night vision for 24/7 monitoring capabilities.

How do I communicate with visitors using the G4 Doorbell Pro?

You can communicate with visitors in real-time through the two-way audio functionality or play pre-recorded messages when you're unavailable to answer the door.

Can I store video footage locally or is cloud storage required?

The G4 Doorbell Pro offers both local and cloud storage options. You can store footage on a microSD card installed in the doorbell or subscribe to the UniFi Protect cloud service for secure online storage.

How do I set up the G4 Doorbell Pro?

The G4 Doorbell Pro can be set up either through wired installation (using existing doorbell wiring) or wirelessly using the included rechargeable battery pack. The UniFi Protect app guides you through the entire setup process.


The UniFi G4 Doorbell Pro is a versatile and feature-rich smart doorbell that leverages cutting-edge technology to enhance home security and convenience. With its high-quality camera, intelligent motion detection, two-way audio communication, and flexible storage options, it provides a comprehensive solution for monitoring your home's entryways.

Whether you choose a wired or wireless installation, the G4 Doorbell Pro is designed for easy setup and user-friendly operation through the UniFi Protect mobile app. By understanding its hardware components, software capabilities, and installation process, you can maximize the benefits of this powerful security device.

If you're in the market for a reliable and technologically advanced video doorbell, the G4 Doorbell Pro is an excellent choice. Take the time to explore its features and capabilities to make an informed decision that enhances the safety and peace of mind for you and your family.

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