8-Inch vs 10-Inch 4G Android Desk Phone: HA03 vs HA04

When selecting a 4G Android desk phone, screen size affects more than the appearance of the device. It influences how much information users can view, how comfortably they can operate applications and how the phone fits into the available workspace.

The KAER HA03 and HA04 are both fixed Android communication terminals with 4G connectivity, touchscreens, cameras, wired networking and PSTN support. The main difference is how each model fits into the user’s daily workflow.

The 8-inch HA03 is designed for compact, communication-focused workstations. The 10-inch HA04 provides additional screen space and a higher-resolution camera for applications and visual communication.

Key Takeaways

• Choose the HA03 when desk space is limited and calling is the main task.

• Consider the HA04 when users need a larger application interface or use video communication regularly.

• Both models support 4G connectivity, PSTN calling, Ethernet, Wi-Fi and Bluetooth.

• The best choice depends on the application, installation space and daily workflow rather than screen size alone.

HA03 and HA04 at a Glance

The two models share the same basic product concept, but the HA04 is not simply a larger HA03. Camera resolution, memory options, physical dimensions and interface layout also differ.

What Do the HA03 and HA04 Have in Common?

Both models combine a touchscreen, handset, camera, speaker and Android applications in a fixed desktop terminal.

They support 4G LTE connectivity, allowing voice and data services through a SIM card. This can be useful in locations where a fixed communication line is unavailable or where cellular connectivity is part of the deployment plan.

Both models also include a PSTN interface for connection to a traditional telephone line. Businesses can therefore retain existing wired telephone services while adding an Android touchscreen and application interface to the workstation.

For local network access, the HA03 and HA04 support Ethernet and Wi-Fi based on the 802.11a/b/g/n/ac standards. Each model also provides a PC network port, allowing a nearby computer to share the wired connection. Bluetooth 5.0 is available for compatible peripherals.

With these core capabilities shared, the choice usually comes down to three practical questions:

• How much desk space is available?

• How much information does the application display?

• How often will users rely on video or visual interaction?

When Is the HA03 8-Inch Android Desk Phone a Better Fit?

The HA03 8-inch Android desk phone is a practical starting point when users need a fixed communication terminal without a large application interface.

Its 8-inch display provides enough space for calling controls, contacts, notifications and simple service menus. The smaller body is also easier to position beside a computer, printer or other desk equipment.

The HA03 can suit individual offices, hotel guest rooms, department communication points and compact reception counters. It is particularly relevant when daily tasks mainly involve making and receiving calls, selecting contacts, checking notifications and operating a small number of approved applications.

The model is available with either 2GB RAM and 16GB storage or 4GB RAM and 64GB storage. A basic configuration may be sufficient for communication and lightweight applications, while the higher configuration provides more room for additional software and local data.

At approximately 0.9kg, the HA03 is also the lighter of the two models.

When Does the HA04 10-Inch Android Desk Phone Make More Sense?

The HA04 10-inch Android desk phone becomes more relevant when users regularly interact with applications or need a larger visual area during communication.

A hotel front desk, restaurant service point, hospital workstation or shared reception desk may need to display customer details, reservations, service requests, orders or task information while handling calls. The 10-inch screen provides more room for these interface elements and can reduce repeated switching between pages.

The HA04 also uses a 13MP camera, compared with the 5MP camera on the HA03. This makes it a stronger starting point for workstations that regularly use compatible video applications or other forms of visual communication.

The larger display may also be easier to operate when several employees share the same terminal. More visible controls and information can help users access applications and service functions across different shifts.

The HA04 measures 303 × 186 × 32mm and weighs approximately 1.2kg, so the available desk or counter space should be considered before selection.

Which Model Fits Common Project Scenarios?

A project does not necessarily need to use one model in every location. A hotel, for example, could deploy HA03 phones in guest rooms and HA04 terminals at the front desk.

What Should Be Checked Before Selection?

Screen size should be considered together with the application and installation environment. Buyers who also need to compare network, software and deployment requirements can refer to our Android desk phone buying guide.

A simple calling or service interface may work well on an 8-inch display, while an application containing multiple information fields or workflow steps may benefit from the larger HA04 screen. The intended application should be tested for Android version, screen resolution, memory requirements and access to functions such as the camera and microphone.

For 4G deployment, confirm that the device frequency bands match the target country and operator. SIM card configuration, local network coverage and VoLTE availability may vary between markets.

The actual installation space should also be measured. Handset placement, cable routing, viewing distance and surrounding equipment can affect how comfortably the phone fits into the workstation.

Testing a sample in the intended network and application environment is usually the most reliable way to confirm the final configuration.

FAQ

Is an 8-inch or 10-inch Android desk phone better?

Neither size is automatically better. An 8-inch Android desk phone is usually more suitable for compact workstations and communication-focused use. A 10-inch model provides more room for detailed applications, shared operation and regular visual communication.

Can the HA03 and HA04 use a traditional telephone line?

Yes. Both the HA03 and HA04 include a PSTN interface for connection to a traditional telephone line. The available telephone line and installation environment should be checked during sample testing.

Which model is more suitable for hotels?

The HA03 can suit guest rooms and compact service points where calling and simple guest services are the main tasks. The HA04 may be more suitable for front desks and shared service stations that need a larger application interface.

Should the application be tested before bulk deployment?

Yes. The intended application should be tested on the selected device to confirm screen layout, Android compatibility, memory requirements and access to functions such as the camera and microphone.

Conclusion

The HA03 and HA04 address similar communication needs in two different formats.

The 8-inch HA03 is better suited to compact workstations and communication-focused use. It provides the main functions required for calls, contacts and simple Android applications without taking up unnecessary desk space.

The 10-inch HA04 provides more room for detailed information, shared operation and regular visual communication. Its larger display and 13MP camera make it more suitable for front desks, service stations and application-focused workstations.

The right choice is not automatically the larger model. It is the one that gives users enough screen space and hardware capability for the work they need to complete.

For project evaluation, buyers can share the intended application, target operator and installation location before selecting an HA03 or HA04 configuration for sample testing.