What are the real advantages of a bike computer with a compact and portable design, beyond just looking sleek on your handlebars? Does a smaller device really translate to improved performance, or is it just a marketing gimmick? Can a compact bike computer truly provide the same level of data and functionality as its bulkier counterparts, or are you sacrificing essential features for the sake of portability? Are there any scenarios where a compact bike computer would be a game-changer, such as long-distance touring or racing, and if so, what specific benefits would it provide in those situations?