Design and Build
The phone's compact and lightweight design is one of its most notable characteristics. With dimensions of 86 x 44 x 20 mm and weighing just 80 grams, the Amoi A90B was quite portable and could easily fit into a pocket or small handbag. It utilized a Mini-SIM, a standard for that era. The most distinctive feature is its dual-display design, with a primary CSTN display capable of showing 65K colors and a resolution of 128 x 128 pixels, alongside a secondary external OLED screen with an 80 x 48 pixel resolution. This feature catered to quick access to notifications without the need to flip open the phone.