Samsung Galaxy S9+: To the nines

An attendee holds a Samsung Electronics Co. Galaxy S9+ smartphone during the company's media event in San Francisco, California, U.S., on Friday, Feb. 16, 2018. The South Korea-based technology giant is banking on new features such as augmented reality-based emojis, camera upgrades, and stereo speakers in a form-factor similar to last year's model in order to take on Apple Inc.'s iPhone X. Photographer: David Paul Morris/Bloomberg

Superior cameras and speakers headline the functions of Samsung’s feature-packed flagships, the Galaxy S9 and S9+.

From the time our cavemen ­ancestors took a stab at graffiti – parietal art if you want to get ­technical – we have loved leaving messages with pictures.