A device for curling hair, and/or styling hair includes a handle, a first arm and a second arm. The first and second arms are arranged side-by-side and parallel to one another and extend substantially along a longitudinal axis of the device. The device includes at least one heating element for heating the first and/or second arm. At least the first arm includes a fixed hemi-arm that is solid with the handle and fixed in orientation and a mobile hemi-arm elastically supported by and movable relative to said fixed hemi-arm.