The Nokia 9000 Communicator was the first product in Nokia's Communicator series, announced at CeBIT 1996 and introduced into the market on 15 August 1996. The phone weighed 397 grams (14.0 oz), was powered by an Intel 24 MHz i386 CPU, and had 8 MB of memory. The memory was divided between applications (4 MB), program memory (2 MB) and user data (2 MB). The operating system was PEN/GEOS 3.0. The Communicator was one of the earliest smartphones on the market, after the IBM Simon in 1994 and the HP OmniGo 700LX, a DOS-based palmtop PC with integrated cradle for the Nokia 2110 cellular mobile phone, announced in late 1995 and shipped in March 1996.

The Nokia Communicator is a brand name for a series of business-optimized mobile phones marketed by Nokia Corporation, all of which appear as normal phones on the outside, and open in clamshell format to access a QWERTY keyboard and an LCD screen nearly the size of the device footprint.