Design and Build
The O2 XDA Guide is a very compact device with dimensions measuring 102 x 53.5 x 14.5 mm and weighing just 102 grams. At just over 4 inches tall and weighing roughly the equivalent of a deck of cards, it was highly portable and convenient to carry. Constructed to accommodate a mini-SIM card, it features a robust but simple design that adheres to the understated aesthetics of its time. The device's screen-to-body ratio of approximately 44.5% reflects the focus on functionality over modern edge-to-edge displays.