This is an interesting development in TWS sensors, it shows a continuing trend towards sensor integration, primarily to reduce cost but also improve such things as waterproofing. This particular sensor from Azoteq boast touch, wear, docking and force sensing in one component, which usually requires 3 or 4 separate sensors.
SAR Insight’s TWS database shows that Azoteq has already won slots in several TWS devices, with its IQS series of capacitive touch sensors, so it is well placed to push this new integrated sensor concept into TWS designs. It seems more likely to be a play for lower end devices, where cost is most important.
Competitors in this space include Goodix, Cypress and many others.