Google has quietly discontinued the Pixel’s Soli radar chip, a motion-sensing feature first introduced in the Pixel 4 that allowed users to control their phone with gestures like waving or reaching. The technology, which used miniature radar to detect fine hand movements, is no longer present in recent Pixel models, marking the end of an experimental era in smartphone interaction. Though innovative, Soli failed to gain widespread adoption due to limited app support and privacy concerns, leading Google to phase it out silently over the past two years. The Soli chip was designed to enable touchless interactions, such as skipping songs with a wave or silencing alarms by reaching toward the device. Despite its futuristic promise, real-world usage remained niche, with few developers integrating the Motion Sense API into their apps. Google’s own implementation was inconsistent, often requiring precise positioning and lighting conditions to work reliably.
Over time, the company shifted focus to software-based alternatives like Face Unlock and improved voice controls, which offered broader usability without relying on specialized hardware. Why Did Google Abandon Radar Gestures? The decision to drop Soli stemmed from a combination of technical limitations and low user engagement. Internal metrics showed that less than 5% of Pixel 4 users actively used gesture controls after the first month. Regulatory hurdles in certain regions also complicated deployment, as radar frequencies required local approvals. Additionally, the sensor consumed noticeable battery power and added complexity to the phone’s internal design. Google concluded that the trade-offs no longer justified the feature’s minimal impact on daily user experience. Is This the End of Touchless Phone Controls? While Soli is gone, Google hasn’t entirely abandoned the idea of touchless interaction.
The company continues to explore camera-based gesture detection through software updates, leveraging the Pixel’s front-facing camera for simple motions like waving to dismiss alarms or answer calls. These alternatives are less power-intensive and work across more devices, though they lack the precision of radar. Industry analysts suggest that future advancements in AI and sensor fusion could revive touchless controls in a more practical form, possibly integrated into wearables or smart home devices rather than smartphones. Frequently Asked Questions What exactly did the Soli chip do in Pixel phones? The Soli chip used miniature radar to detect subtle hand movements near the phone, enabling features like skipping tracks, silencing alarms, or unlocking the device with gestures. It was designed to work without touching the screen or waking the phone fully.
Why did Google remove Soli from newer Pixel models? Google discontinued Soli due to low user adoption, limited developer support, regulatory challenges in some countries, and battery drain concerns. The feature was used by a small fraction of owners and didn’t justify the hardware cost or complexity.
Are there any alternatives to Soli in current Pixel phones? Yes, current Pixel devices use the front-facing camera for basic gesture controls, such as waving to silence alarms or answer calls. These software-based solutions are less precise but more widely compatible and energy-efficient than radar sensing.