A joint statement afterward said that Biden "supports Prime Minister Suga's efforts to hold a safe and secure Olympic and Paralympic Games this summer."
Sources told Reuters on Wednesday that Japan has decided to stage the Games without spectators from abroad due to concerns over the spread of COVID-19.
Japan has so far recorded about 410,000 coronavirus cases and 6,772 deaths, and is racing to get infections under control especially ahead of the Tokyo Olympic Games starting in July.
The robot was developed by the Japanese company industrial giant Kawasaki, while the Japanese Minister of Health inspected the robots and obtained details from experts.