According to blogTO, the tables are of a ….
…Design by ODAMI and MiiM (that) incorporates innovative tabletop cubbies with heavy, spill-proof lids designed to stow your phone at the beginning of the meal. Servers remove the lid at the end to remind you to return to your phone, and emerge from the period of serenity Sara offers diners.
Nice restaurant, great idea. For more on it, see: Sara – blogTO – Toronto