The glass back lets you charge the phone wirelessly and also perform contactless payments through Samsung Pay. However, it’s a major fingerprint magnet. It doesn’t take much to get a lot of smudges on the back. The display is a bit more resilient. Both phones have the same display sizes and resolutions as their predecessors. You get a 5.8-inch display on the Galaxy S9, and a 6.2-inch display on the Galaxy S9+. Both are Super AMOLED panels with an 18.5:9 aspect ratio and a native resolution of 1440×2960 (Quad HD+).
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