How to Increase the Screen Resolution of the Galaxy S9
Galaxy S9 and S9 + have a maximum screen resolution of 2960 × 1440, but phones default to a lower value, 2220 × 1080. Let’s fix that.
Samsung uses lower settings by default to conserve battery power, and smartphone displays still look great, but they can look even better if you don’t mind sacrificing a little battery life to get there. (And if you can’t see the difference between the two, just select the bottom one.)
To increase the screen resolution of your Galaxy S9 or S9 +, go to the device’s Settings menu, tap Display, then tap Screen Resolution. From there, you just need to drag the marker to your desired screen resolution – rotate it to 2960×1440 (WQHD +) if you’re adventurous. If you still need a little more battery life during the day, you can also reduce it to 1480 × 720 (HD +), sacrificing image quality in favor of energy.
I’ve tried all three and honestly I find it hard to tell the difference between them in most of my regular activities. Things like email, web surfing, and texting look great in all three modes, so if you’re worried about battery power and only use your smartphone for basic activities, you can simply go back to the HD + setting from the gate.
If you watch a lot of movies and videos on YouTube (or elsewhere), then WQHD + lets you enjoy 1440p video – we’ll stick with that. This is where higher screen resolution matters, and in some cases you might not even see that a high resolution stream is available for the video you are watching unless you have configured this setting.