The design of the WA-7 droid was typical of the era, consisting of streamlined contours, elliptical shapes and whimsical embellishments. The droid was propelled by an effective unipod wheel supported by gyro-balance circuitry. The unipod's drive impellers generated enough power for quick bursts of speed ideal for use within confined spaces such as the floor of a dining establishment. In addition, the droid's design was embellished with a metallic skirt and matching head fins.
The droid was fitted with more practical features, however, including a built-in order transmitter whose range could easily cover the interior of any diner or restaurant, and a vocoder allowing the droid to interact socially with patrons. Facial-recognition software enabled WA-7 units to recall customers' likenesses, and thus identify "regulars". The droid also sported a built-in comlink which could contact local authorities in some cases.[source?]
WA-7 units remained in use throughout the Mondeo Modernist period and beyond, even into the era of the Clone Wars. By this point, although many still operated as waitresses, some WA-7 units took odd jobs such as courier work, and private collectors even entered a WA-7 team into the nuna-ball league. The WA-7 players defeated Serv-O-Droid's RIC droid team in a match in 22 BBY. Another notable unit was the WA-7 nicknamed "FLO", who operated in Dex's Diner in the last decades of the Republic.
- LEGO Star Wars: The Video Game (Non-canonical appearance)
- LEGO Star Wars: The Complete Saga (Non-canonical appearance)
- Star Wars: Episode II Attack of the Clones
- Star Wars Episode II: Attack of the Clones comic (First appearance)
- Star Wars Episode II: Attack of the Clones junior novel
- Star Wars: Galactic Battlegrounds: Clone Campaigns
- The Clone Wars: Decide Your Destiny: Crisis on Coruscant
- Star Wars: The Clone Wars – "Brothers"
- Republic 78: Loyalties
- The Last of the Jedi: A Tangled Web
- The Last of the Jedi: Secret Weapon
- Star Tours: The Adventures Continue
- The Jewel of Yavin
- Oh!! Jawajawa
- The Official Star Wars Fact File 64 (WAI1-2, WA-7 Waitress Droid)
- The New Essential Guide to Droids
- The Complete Star Wars Encyclopedia