High‐quality chest compressions are vital for successful cardiopulmonary resuscitation (CPR). Existing manual and mechanical compression methods suffer from unstable quality, lack of real‐time feedback, and insufficient personalized adjustment. Here, we report a large‐area, stretchable accelerometer array with the capability to monitor multi‐point compression depth across the chest and achieve the cross‐sectional chest contour at the peak compression. The proposed accelerometer array features stretchable discrete stiff island design and exhibits good mechanical adaptability to enable conformal contact with the chest region. A chest compression depth estimation algorithm based on triaxial acceleration data is developed to predict the compression depth. Moreover, a peak‐averaging‐based contour construction method is proposed to construct the deformed chest contour. The predicted compression depth and chest contour agree well with experimental measurements in both simple hollow semi‐cylinder and complex adult manikin systems, demonstrating that the accelerometer array exhibits high spatiotemporal resolution in multi‐point chest compression monitoring and dynamic tracking of thoracic deformation patterns. These results offer high spatiotemporal resolution for multi‐point deformation tracking, providing key technical support for advancing the CPR feedback technologies.

Transfer printing based on switchable adhesive that heterogeneously integrates materials is essential to develop novel electronic systems, such as flexible electronics and micro LED displays. Here, we report a robust design of a thermal actuated switchable dry adhesive, which features a stiff sphere embedded in a thermally responsive shape memory polymer (SMP) substrate and encapsulated by an elastomeric membrane. This construct bypasses the unfavorable micro- and nano-fabrication processes and yields an adhesion switchability of over 1000 by combining the peel-rate dependent effect of the elastomeric membrane and the thermal actuation of the sub-surface embedded stiff sphere. Experimental and numerical studies reveal the underlying thermal actuated mechanism and provide insights into the design and operation of the switchable adhesive. Demonstrations of this concept in stamps for transfer printing of fragile objects, such as silicon wafers, silicon chips, and inorganic micro-LED chips, onto challenging non-adhesive surfaces illustrate its potential in heterogeneous material integration applications, such as flexible electronics manufacturing and deterministic assembly.