HarmonyOS 6 debuts "Smart Grip" — Huawei's Yu Chengdong reveals how phones know which hand you're using

What Huawei (华为) announced

Huawei (华为) has built a new interaction into HarmonyOS (鸿蒙) 6 called "Smart Grip" (智感握姿). The feature was unveiled at last November's Mate 80 series and Mate X7 launch, and it moves on-screen controls — for example the accept/decline buttons on incoming calls or video chats — to follow the way you hold the phone. Yu Chengdong (余承东), Huawei's executive director and head of the consumer business group, today published a video explaining the technical principles behind the function for the first time.

How it works — sensor fusion and AI

How does the phone know which hand you're using? Huawei says Smart Grip detects subtle changes in antenna signal and sensor readings when parts of the handset are blocked by a user's grip. Those differences vary by hold and can be fused into a grip pattern. It has been reported that Huawei achieves millisecond-level fusion of multiple sensor streams within HarmonyOS and, combined with its self‑developed AI chip and dedicated algorithms, can determine which hand is holding the device in about one second. Huawei has characterized the capability as an industry first; reportedly the OS-level sensing is what enables the fast, system-wide response.

Apps, rollout and scale

Huawei says the feature is exclusive to HarmonyOS 6 and already open to third‑party apps. More than 100 applications have reportedly integrated Smart Grip, covering incoming calls, likes and favorites, commenting, quick shopping and creating calendar entries. The company confirmed Mate 80 and Mate X7 are initial carriers of the feature and that support will be extended to additional models in the coming months.

Why this matters beyond UX

The technical details matter because they show Huawei doubling down on software and in‑house silicon after years of U.S. export controls that have restricted its access to leading-edge chips. Smart Grip is a small UX feature on the surface. But the combination of low-latency sensor fusion, on-device AI and broad OS-level hooks illustrates how Chinese device makers are investing in software and vertical integration to differentiate products amid geopolitical pressure.