“He has lovely, puffy little legs and tufts of reddish hair. He’s really adorable,” a source told PEOPLE magazine.
They added that the three-month-old is a “happy baby.”
When Archie was born on May 6, fans wanted to know whether he had red hair just like Prince Harry.
The world got its first glimpse of the royal tot two days after his birth, during a brief photocall at Windsor Castle, but he was wearing a hat.
When asked who he takes after, Meghan said: “We’re still trying to figure that out.”
Harry added: “Everyone says that babies change so much over two weeks, we're basically monitoring how the changing process happens over this next month really. But his looks are changing every single day, so who knows.”
The duke and duchess are said to want their son to grow up away from the glare of the media, but they have shared a couple of images of him on Instagram, including a picture of his toes and a sepia-toned snap.
The official photos from Archie’s christening in July showed him sleeping in his mother’s arms and then in another, wide awake surrounded by members of the Royal Family.
Fans were already convinced from those photos that Archie bore a resemblance to Harry.
Archie was last seen in public at the King Power Royal Charity Polo on 10 July. Mum Meghan took him along to cheer on Prince Harry and Prince William during the match.
The pair were joined on the sidelines by the Duchess of Cambridge and her three children, Prince George, Princess Charlotte and Prince Louis.
It’s likely the next time Archie will be seen in public, is when he joins his parents on their royal tour of Africa this autumn.