AI-AITech Emma 405
Emma 405 is a defined version within the existing Emma family. Cloud Climax describes a physical conversation head with ESP32 firmware and voice control, without Android, a screen or apps. This assessment is based on the retailer's documentation.
Retailer offering · stock unconfirmedOur assessment
405 deserves its own version assessment because its controls and electronics differ from 403. It best suits readers who prioritise a simple conversation function. Fewer settings, however, do not document better conversation, fewer faults or a longer lifespan. Physical testing and a version-specific manual are missing.
What makes it interesting
- A specific electronic difference from Emma 403.
- No Android menus or screen to operate.
- A separate language version can be selected.
Important caveats
- Personalisation and further development are not supported, according to the retailer.
- AI service, offline use and subscription remain unclear.
- No verified manufacturer manual for 405.
Functions and specifications
- Family
- Emma; version 405
- Architecture
- ESP32 MCU with firmware; retailer information
- User interface
- Voice; no screen or Android apps
- Connection
- 2.4 GHz Wi-Fi or hotspot
- Language selection
- English, Chinese or Japanese as a separate version
- Head
- Silicone; approximately 49 cm circumference
- Battery access
- Removable battery compartment; runtime not verified
Product images 5 images
Clothed retailer photograph linked to the 405 sales page. The image does not document the internal electronics or a specific body configuration.
What does 405 change compared with 403?
Cloud Climax lists Android 10.1, a rear display under a round cover and 2.4/5 GHz Wi-Fi for 403. Battery access is through the display cover. The retailer also offers personalisation and further development. 405 is therefore a different choice of electronics and controls within the same family; the higher version number does not establish more features.
Clarify conversation before ordering
405 is sold in separate language versions; three options do not automatically mean one head can switch between all three. Danish is not documented. The Wi-Fi information also does not establish where the AI model runs. Clarify continued service access, data processing and any charges before making conversation the deciding factor. A demonstration should show an ordinary conversation with interruptions and connection loss on the exact language version. A general Emma video cannot settle this.
The head is easier to define than the body
The removable battery compartment provides a specific difference in access, but charging time, capacity and the replacement procedure are not established here. The body choices and general measurement tables on the sales page are ambiguous. Obtain written confirmation of the exact body, head connection and complete package.
Movement requires its own documentation
Older Emma pages describe various mechanical features. This information is not transferred to the 405. Neither a specific number of motors, a particular set of movements nor autonomous body movement is verified for this version. Heating and touch sensors are described as optional extras for the silicone body.
Care and service remain open questions
AI-AITech UK itself states that the name is used by Cloud Enterprises, which also operates Cloud Climax. It is therefore the same retailer group, not independent factory verification. A specific cleaning guide, stopping procedure and spare-parts arrangement for the 405 need to be clarified. We have not measured noise, battery life, comfort or conversation quality. Also establish who handles faults in Denmark and whether the complete head must be returned. This affects both costs and time without the product.
Sources and method
Sources checked 15 October 2026.