The incident happened on Saturday morning as the musician was about to board his car at the Moi International Airport.
Speaking to the Nation, the fan, who said she was “deeply disappointed by the artiste’s action,” wondered why Brown, a renowned singer, grabbed her phone and threw it away, landing on the floor.
“I was with my friends and was trying to take a selfie when he grabbed the phone from the back. I was shocked.
“I have a ticket for the show but I won’t attend it. Brown should know that we like his songs but he has to respect his fans,” she said.
“I bought my iPhone 6 last month at Sh90,000 and seeing it being tossed off like a mulika mwizi (a cheap feature phone) was bad.
“Although it is only the screen protector and back cover that broke, I cannot imagine how I would have felt had it been damaged,” added the fan, who said she did not want her name mentioned.
The singer is in the coastal city to perform in a concert dubbed Mombasa Rocks which goes down on Saturday night at the Mombasa Golf Club.
The concert has been organized by Wale Wasee promoters and will see other artistes performing including Nigeria’s Wizkid and Tanzania’s Ali Kiba also performing.
The American singer who is infamous for his run-ins with the authorities was just weeks ago released from a Los Angeles county jail on $250,000 bail after being arrested on suspicion of assault with a deadly weapon.