A smart-watch comprising: a wristband; a base coupled to the wristband and including: a housing, a processor, a wireless transceiver in communication with the processor, the wireless transceiver configured to connect to a wireless network; a battery coupled to the housing and in communication with the processor; a first auxiliary component located on a first side of the base and separate from the base, the first auxiliary component including a first touchpad in communication with the processor and configured to provide tactile interaction between a user and the smart-watch; and a second auxiliary component located on a second side of the base opposite the first side and separate from the base, the second auxiliary component including a second touchpad in communication with the processor and configured to provide tactile interaction between the user and the smart-watch, the processor being configured to provide a coordinated output based on a tactile-based user input to the first touchpad relative to a tactile-based user input to the second touchpad, the coordinated output including at least one of a pinch function, a stretch function and a tap up or down function, wherein the first auxiliary component and the second auxiliary component are provided as a link in the wristband, and wherein the first auxiliary component forms a first modular component removably connected to the wristband and the second auxiliary component forms a second modular component removably connected to the wristband to provide a modular system for adding or removing auxiliary components from the smart-watch. a wristband; a base coupled to the wristband and including: a housing, a processor, a wireless transceiver in communication with the processor, the wireless transceiver configured to connect to a wireless network; a housing, a processor, a wireless transceiver in communication with the processor, the wireless transceiver configured to connect to a wireless network; a battery coupled to the housing and in communication with the processor; a first auxiliary component located on a first side of the base and separate from the base, the first auxiliary component including a first touchpad in communication with the processor and configured to provide tactile interaction between a user and the smart-watch; and a second auxiliary component located on a second side of the base opposite the first side and separate from the base, the second auxiliary component including a second touchpad in communication with the processor and configured to provide tactile interaction between the user and the smart-watch, the processor being configured to provide a coordinated output based on a tactile-based user input to the first touchpad relative to a tactile-based user input to the second touchpad, the coordinated output including at least one of a pinch function, a stretch function and a tap up or down function, wherein the first auxiliary component and the second auxiliary component are provided as a link in the wristband, and wherein the first auxiliary component forms a first modular component removably connected to the wristband and the second auxiliary component forms a second modular component removably connected to the wristband to provide a modular system for adding or removing auxiliary components from the smart-watch.