Karon beach is long and narrow, has nice sand and swimable water. It is currently very quiet because of the lack of tourists. The little town around has a few nice cafe and restaurant but actually most are currently closed.
Walkable distance from Karon, this is smaller and quieter again. I personally prefer Karon as it is a bit more lively and has more going on. The sand is nice and there are sun beds available around 100 baht only. It is a good beach option
Longer and wider than the other 2, this is also much busier, although you can find quiet areas.
Lots of sunbeds available usually you can just buy a drink and use them. Also more water activities such as jet-ski or para sail. Unfortunately you will be bothered more on this beach by the hawkers and sellers, quite annoying. Many restaurants, bar, cafe around as this is the busiest park of Phuket.
Tambon Patong, Amphoe Kathu, Chang Wat Phuket 83150