STMicroelectronics Brings Always-On Vision to Next-Generation Personal Electronics with New Ultralow-Power Image Sensors
29 April 2026 STMicroelectronics, a global semiconductor leader serving customers across the spectrum of electronics applications, has announced it has introduced a new generation of ultralow-power global-shutter image sensors that deliver high-quality, always-on vision to compact devices operating on batteries or harvested energy.
The company says the D55G4 (monochrome) and VD65G4 (RGB colour) sensors, part of the ST BrightSense portfolio, are now available to early adopters, enabling customers to start designing their next generation of smart, ultralow-power vision devices today.
Designed for the next wave of personal electronics and smart devices, the new sensors serve applications including wearables, AR/VR and XR headsets, smart home appliances and medical devices. They are engineered to deliver rich visual context and AI-ready data under tight constraints on power, size, and cost. The sensors combine an ultralow-power detect-and-wake architecture with a very small global-shutter optical format and interfaces optimised for low-power microcontrollers and cost-effective systems on chips (SoCs).
“Alwaysâon vision is becoming essential for the next generation of personal electronics, from smart glasses and AR/VR headsets to intelligent home appliances and medical devices. With VD55G4 and VD65G4, we are bringing this capability to smaller, lighter products that must run for a long time on a tiny battery. These new sensors help our customers create more intuitive and responsive experiences, extend battery life, and bring embedded vision and edge AI into everyday devices,” said Alexandre Balmefrezol, Executive Vice President and General Manager of the Imaging Sub-Group at STMicroelectronics.
From wearables and AR/VR to smart appliances
VD55G4 and VD65G4 bring alwaysâon vision to products that must stay small, light, and extremely powerâefficient. Building on the ST BrightSense family, they add a colour option, faster response for interactive use cases, and simple connectivity to lowâpower microcontrollers, making it easier to add vision to spaceâ and costâconstrained designs.
In wearables, the sensors enable allâday, alwaysâaware features such as glance detection, presence sensing, and contextual alerts, while fitting into very compact designs and working directly with microcontrollerâbased platforms.
For AR/VR and XR headsets, they combine low power and highâquality capture to support accurate tracking and spatial awareness, helping extend battery life without compromising comfort.
In smart home appliances, IoT devices, and medical products, the sensors allow more intelligence to run locally on the device itself, reducing cloud dependence and standby power. Their tiny size and energy efficiency also make them well suited to solarâ or energyâharvestingâpowered vision nodes.
Ultralowâpower design that consumes up to 10x less
Thanks to an optimised sensor architecture and dedicated alwaysâon mode, VD55G4 and VD65G4 can consume up to 10 times less power than conventional globalâshutter sensors. They can watch for changes in a scene and wake up the main processor only when needed, shifting from continuous streaming to eventâdriven operation. This enables allâday, alwaysâon experiences, longer battery life, and practical vision systems powered by small batteries or energy harvesting.
Their very small footprint and integrated image processing can simplify design and reduce system cost, while supporting responsive, AIâready vision features in a wide range of edge devices.