flexible wrist

基本解释

The article introduces the modular robot and design of some modules including multiple degree of freedom arm, automatic centering wrist and flexible hand.
本文引入了模块机器人的概念，并介绍了多自由度手臂、自动对中手腕及柔性手的设计要点。
Relax your arm (the whole body, actually), keep your wrist flexible, lift the hand from 5 to 20 cm above the keys (the shorter distance in the beginning), and let gravity drop your hand.
手臂放松（事实上是整个身体都要放松），保持手腕柔软，然后将手抬高离开键盘5至20公分（开始时用较短的距离），让手自然放下。
Reflective armband & wrist supply:Reflective armband is flexible iron surface, a reflective material packet, products free bending loop, wearing arm, wrist.
品名：反光臂章反光臂章是具有弹性的弹片外包有反光晶格，产品可自由弯曲成圈，扣于手臂、手腕。
product.ch.gongchang.com

The filing also suggests that the device could house an end-detection sensor, allowing the wearable to configure itself to each user, regardless of differing wrist measurements, and deactivate sections of the flexible display that aren't on show.
ENGADGET