https://www.techradar.com/news/samsung-galaxy-s10-could-have-a-triple-lens-rear-camera

The dual-lens Samsung Galaxy S9 Plus is one of the best camera phones around, but it’s beaten in some ways – including total number of lenses – by the Huawei P20 Pro. 

However, it looks like the company might be aiming to catch up when it launches the Samsung Galaxy S10.