A sensor system , comprising - at least one analyte sensor configured for at least partial implementation into a body tissue of a user; - at least one flexible electronics patch , the flexible electronics patch comprising o at least one flexible circuit board having a flexible substrate and a plurality of conductive paths on the flexible substrate ; ∘ at least one electronics component for performing at least one analyte measurement using the analyte sensor , the electronics component being one or both of attached to or integrated into the flexible circuit board ; ∘ at least one flexible protective layer , the protective layer at least partially covering an upper side of the flexible circuit board ; and ∘ at least one first adhesive layer on a lower side of the flexible electronics patch , configured for adhering the flexible electronics patch to the skin of the user; - at least one applicator unit for applying the flexible electronics patch to the skin of the user; and - at least one second adhesive layer for adhering the flexible electronics patch to the applicator unit before applying the flexible electronics patch to the skin of the user, wherein an adhesive force of the second adhesive layer is lower than an adhesive force of the first adhesive layer , such that when the flexible electronics patch is pressed onto the skin by the applicator unit and the applicator unit is removed, the flexible electronics patch is separated from the applicator unit and adheres to the skin . - at least one analyte sensor configured for at least partial implementation into a body tissue of a user; - at least one flexible electronics patch , the flexible electronics patch comprising o at least one flexible circuit board having a flexible substrate and a plurality of conductive paths on the flexible substrate ; ∘ at least one electronics component for performing at least one analyte measurement using the analyte sensor , the electronics component being one or both of attached to or integrated into the flexible circuit board ; ∘ at least one flexible protective layer , the protective layer at least partially covering an upper side of the flexible circuit board ; and ∘ at least one first adhesive layer on a lower side of the flexible electronics patch , configured for adhering the flexible electronics patch to the skin of the user; o at least one flexible circuit board having a flexible substrate and a plurality of conductive paths on the flexible substrate ; ∘ at least one electronics component for performing at least one analyte measurement using the analyte sensor , the electronics component being one or both of attached to or integrated into the flexible circuit board ; ∘ at least one flexible protective layer , the protective layer at least partially covering an upper side of the flexible circuit board ; and ∘ at least one first adhesive layer on a lower side of the flexible electronics patch , configured for adhering the flexible electronics patch to the skin of the user; - at least one applicator unit for applying the flexible electronics patch to the skin of the user; and - at least one second adhesive layer for adhering the flexible electronics patch to the applicator unit before applying the flexible electronics patch to the skin of the user, wherein an adhesive force of the second adhesive layer is lower than an adhesive force of the first adhesive layer , such that when the flexible electronics patch is pressed onto the skin by the applicator unit and the applicator unit is removed, the flexible electronics patch is separated from the applicator unit and adheres to the skin . <EOS>