Ms San Thidar New, from Myanmar, was cleaning on the second floor of the Pro Mansion Apartment at about 1pm when Saranyu Sae Jang, 18, from Chiang Mai, appeared and attacked her, explained police.
Saranyu punched her face several times and robbed her of her gold necklace, her gold bracelet and about B1,000 in cash.
Ms San, face bloodied and bruised, picked herself up off the floor and chased Saranyu as he ran down to the first floor, where he punched and kicked her to the ground before speeding off on his motorbike.
Ms San went to call for help and by chance saw a Wichit Police officer on patrol passing by. She explained her ordeal and gave a description of the motorbike and its licence plate number to the officer, who alerted other police to be on the lookout for Saranyu.
Within two hours police had tracked Saranyu to a house on Soi Prachauthit, where he was placed under arrested.
Police confirmed that Saranyu has been charged for the attack and robbery, and that Ms San was taken to Vachira Phuket Hospital for treatment of injuries sustained in the attack.