Sunday Robotics' Third Teaser Reveals "In-House" Dual-Gripper and a Wheeled, Non-Humanoid Body

Sunday Robotics has released its third and most revealing teaser in its daily countdown, finally showing the robot's full form factor and a custom end-effector that confirms the company's deep "full-stack" bet.

The new clip, posted by CEO Tony Zhao, shows the robot is not a bipedal humanoid, but a wheeled platform with a central, vertically-moving body. This "Z-axis" shaft allows the robot to adjust its height, moving from countertop level to other tasks. The video also gives the first clear look at the friendly, minimalist "face" from the company's X profile.

In a post accompanying the video, CEO Tony Zhao confirmed the company's philosophy: "Here’s the face reveal of the robot we design, engineer, and build entirely in-house!"

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The "Full Stack" Bet Is a Custom Dual-Gripper

The video's "hero task" is the most compelling evidence yet of this "in-house" strategy.

The robot is seen clearing a dinner table, and in a single, complex motion, it uses a custom-designed dual-gripper to pick up two empty wine glasses at once. A closer analysis, confirmed by re-watching the previous dishwasher-tab video, shows this is a purpose-built, non-humanoid tool. A primary pincer grabs the first glass, while a second, top-mounted pincer simultaneously secures the second.

This is a big reveal for two reasons:

1. It's a "Utility-First" Design: While much of the industry (Figure, 1X, Tesla) is in a race to build a universal, five-fingered, anthropomorphic hand, Sunday has built a custom tool for a specific job. This is a pure utility-first, non-humanoid solution designed for domestic efficiency.

2. It's a Software Flex: The software and control challenge of coordinating two separate grippers on a single arm to perceive, plan, and execute a "double grab" on fragile, overlapping objects is exponentially harder than a simple pickup.

This directly supports CTO Cheng Chi's earlier claim of achieving "mm level precision beyond actuator limits." The company is proving its "full stack" value by designing custom hardware ("in-house" grippers) to solve specific problems, and then developing the highly advanced software to run it.

A Different Bet on the Future

The confirmation of a wheeled base, rather than legs, is another major strategic departure. Sunday is gaining stability, energy efficiency, and (likely) cost, at the expense of being unable to climb stairs.

As the Nov 19 reveal approaches, the company's strategy is in sharp focus. It is not trying to mimic a human. It is betting that a utility-focused, wheeled platform, powered by a "full stack" of custom hardware and a brilliant AI, is the actual "iPhone moment" for robotics.