April 2013 Sales and shipping. The S4 was made available in late April 2013 on 327 carriers in 155 countries. It became Samsung's fastest selling smartphone and eventually Samsung's best-selling smartphone with 20 million sold worldwide in the first two months, and 40 million in the first six months.

First go to settings. Okay now in settings. Slide down and if we go in display. So you can see light and dark this is the light mode. And this is the dark mode. If we tap here it will go in dark mode.

but the weirdest thing is is that there's still a lot of features within the Galaxy S4. that still hold up decently well in this day and age you would never think that a phone like the Galaxy S4. had features or still has features that a lot of phones nowadays don't have.

The Galaxy S4 is a very good phone in most respects - it has a stellar camera and solid battery life, blistering performance and an impressively useful complement of software features. It's a technological achievement - there's no question about that.

Samsung 2022 TVs feature EyeComfort Mode, which automatically adjusts the screen's brightness and tone based on a built-in light sensor and sunset/sunrise information. If you watch TV at night with EyeComfort Mode enabled, the blue light level will be reduced, and your images will appear warmer.

And here you find accessibility. And select high contrast option interface will switch as you can see dark background and gray text with white highlights.

Older Samsung Galaxy phones such as the Galaxy S4 and earlier won't work anymore in 2022 and beyond.

The core of its success in the competitive consumer electronics category has come from its investments in technology, innovation, design and user experience, Roll believes.

If you watch TV at night with EyeComfort Mode enabled, the blue light level will be reduced, and your images will appear warmer. This can help reduce eye strain but still provide crystal clear images.

Please Note: Night Mode is available on Galaxy S23 Ultra, S23+, S23, S22 Ultra, S22+, S22, S21 Ultra, S21 FE, S21+, S21, S20 FE, S20, S10, Z Fold5, Z Fold4, Z Fold3, Z Fold2, Z Fold, Z Flip5, Z Flip4, Z Flip3, Z Flip, Note20, Note10, A54, A34, A14, A72, A53, A52s, A52, A42, A33, A32, A23 series phones.

Night mode is a new feature on your Samsung Galaxy S10 that allows you to darken your device's menu for better viewing in low-light areas. To turn it on, swipe down twice from the top. Then swipe left. You can tap Night mode to quickly use it. Or touch and hold to set a custom schedule.

Update & verify software From the device home screen, press the Menu key and tap Settings. From the More tab, tap About device. Tap Software update > Check for updates. Follow the on-screen prompts to download and install the update.