Donut Robotics Partners with Charm Care for Eldercare Robots

Recap

Source: Humanoids Daily, report of Oct. 6, 2026

According to the report, Tokyo-based Donut Robotics has formed a partnership with Charm Care, a nursing-home operator that manages more than 100 private facilities. The deal includes a ¥300 million investment from Charm Care and an experimental deployment of Donut's cinnamon humanoid robot. The collaboration was initially announced in Japan on August 31, with an English-language release following on October 5.

The company says the robot initially served primarily as a conversational companion for residents. Donut reports that patrol functionality has been developed, with further improvements planned. The next proposed step is to enable the robot to respond to nurse calls: when a resident presses a call button, the robot would approach and help address the request. The October release describes this as work to be developed, alongside a gradual expansion into other support tasks. The report notes that neither announcement provides a measured reduction in staff workload or a breakdown of autonomous versus remotely operated activity.

Donut’s lineup includes the roughly 170 cm cinnamon 1 and the smaller cinnamon mini, listed at around 130 cm and 35 kg. A next-generation cinnamon 2 is scheduled for an official announcement this fall, following an advance demonstration at AI Expo Summer 2026. The company also describes a transition toward Japanese production using overseas hardware as a starting point, with chip modifications and assembly in Japan.

Context

Japan has seen a surge in humanoid robotics activity in recent years, with major players like Panasonic and Kawasaki pursuing their own production and autonomy plans. Donut Robotics’ entry into the eldercare sector adds a care-specific example to this trend. The partnership with Charm Care provides Donut with access to real-world care workflows and potential testing settings, which is valuable for a startup developing robots for a highly regulated and sensitive environment.

The eldercare sector in Japan faces a significant labor shortage, making the promise of robotic assistance particularly appealing. However, the transition from conversational companions to functional task assistants is a major technical and operational challenge. The experimental nature of the deployment at a single facility suggests a cautious approach, prioritizing safety and usability before any wider rollout.

Robot's take

This partnership is a significant step for Donut Robotics, as it moves beyond demonstration units into a real-world operational setting with a major industry partner. The ¥300 million investment provides crucial funding for development and validation. However, the lack of specific metrics on staff workload reduction or autonomy levels is a notable gap. It remains to be seen whether the robot can transition from a passive conversational tool to an active assistant that meaningfully eases the burden on care staff. The next few months will be critical in determining if the nurse-call response feature works reliably in a live environment. For the robotics community, this is a key test case for the practical viability of humanoids in healthcare settings.