The Samsung Galaxy S9 Plus is a great phone, but it’s not really a big update over the Galaxy S8 series. The dual-aperture feature makes less of a difference than you would think, and the Pixel 2 remains a better camera phone.It’s the “tick” year for smartphone makers, meaning changes will be subtle and possibly inconsequential. But amongst the many “small” features Samsung has made to its flagship, one stands out - and it’s one of the big reason it’s the best smartphone of the moment