A useful paperweight.
A desk object that could show CO₂, temperature and humidity at a glance. The display made the idea easy to explain.
From a paperweight
to Unwearable.
A product in development by Xube. Follow the decisions behind its form, sensors and app.
The design changed
with the conversation.
Unwearable began as a desk paperweight with a display. As we talked through how people would use it at home, the brief became clearer: measure the room, keep the device small, and put the detail on the phone.
A smaller display.
We explored a compact display and a smaller product direction. The detailed sensor packaging study was still 88 × 84 × 88 mm. It showed what needed to change.
The phone becomes the display.
A 50 mm envelope, softened edges and one glowing “u”. Removing the display gives the device a simpler role: stay in the room and measure it.
Concept renders and CAD studies document design decisions. They are not photographs of completed devices.
Even the small details
change the product.
The glowing “u” became the power indicator. Then came the practical question: how does room air reach the sensors without interrupting the form?
A disc on the back.
A flush sintered-steel vent gave the gas and humidity sensors an air path. It kept the front clean, with the vent above USB-C.
Move it underneath.
Small rubber feet suggested a cleaner solution: tuck the disc below the device. Three support points reduce rocking and leave an air gap. The screws sit underneath the rubber feet, keeping them out of sight. Body and feet together stay within 50 mm.
The next step is to measure diffusion, response time and temperature bias in that position. A sintered disc can obstruct particles, so particulate sensing needs a separate, validated sampling or optical path.
The app is part
of the product.
The screen did not just disappear. Its job moved to a phone interface: room selection, individual measurements and history in one place.
Try switching rooms, choosing a measurement and opening History. Tap + to walk through device discovery, Wi-Fi setup and room naming. This browser prototype lets us review the interaction before committing to device firmware or a native app.
Open the app preview ↗Interactive design prototype · example data · no device connection
The current form, in 3D.
The 50 × 50 × 50 mm envelope includes the rubber feet. All shell edges are rounded, with an 11 mm radius. Rotate the CAD to see the underside vent and rear USB-C opening.
Form study. The metal disc and rubber feet are supplier-part placeholders. Electronics, retention, airflow and physical fit are not yet validated. Drag to rotate; arrow keys rotate; +/− zoom.
From design to a working device.
The larger SEN66 module is not retained in this 50 mm design. We are evaluating a compact CO₂ sensor, the required SHT45 temperature/humidity sensor, VOC and pressure sensing, and a separate miniature particulate sensor.
Planet V2 remains the prototype controller. Bluetooth access, standalone Wi-Fi, sensor isolation, vent response and backup power need hardware validation. The polished form is a design target; it is not a claim that the electronics are complete.