PERFORMANCE: Overall the performance of the Samsung Galaxy S8 was very good. Its quickness, battery life, and camera quality will satisfy all but the most discerning users. Ergonomics on the Galaxy S8 were excellent. The touchscreen and ease of use were top notch. You should be able to comfortably hold the phone and use its buttons and touchscreen easily. Call quality and convenience on the Galaxy S8 were not the best but they were very good. Sound while on a call was very good in a quiet room and with background noise. Your sound quality will vary due to many factors including background noise, if you are moving between cell towers, the quality of the phone on the other end of the call, and the quality of the cell tower and antenna.
DURABILITY: After 50 drops in the tumbler, our experts rated it poor. The display was badly broken and not working. Be very careful with this smartphone. The screen is delicate. After 100 drops in the tumbler, our experts rated it poor. For this phone, a quality protective case is something you should buy along with the phone.
PORTABILITY/BATTERY: The 5.8-inch screen on the Galaxy S8 comes in a body measuring 5.9-inches tall, 2.7-inches wide, 0.3-inches thick, and weighs 5.3 ounces. Those measurements mean the phone is narrower than most. At 26 hours, it is among the longest battery lifespans we tested. Its battery is not removable but the phone does support wireless charging.
CAMERA: The main rear camera on the Samsung Galaxy S8 measures 12-megapixels. The camera has optical image stabilization to improve your chances of taking better handheld photos under low-light conditions. Overall the camera performance was very good. The main camera is among our top performers for shooting stills. Images are evaluated on high quality LCD displays. The test photos are taken in a brightly lit studio and outdoors on a sunny day. In the viewing tests the images were rated very good overall. These images are among the best results for color quality, exposure level, sharpness, and image noise. The Galaxy S8 comes with an 8-megapixel selfie cam. Overall the selfie camera quality was very good.
DISPLAY: Overall the display quality was excellent. The display resolution was high enough, close to or greater than 300dpi, so you see a smooth, crisp display. If the display does have a higher resolution, most people will not be able to tell the difference. Readability outdoors is a combination of brightness, measured in candelas per square meter, and reflectivity. The readability rating was very good. The brightness level measured 1 meter from the screen was a high 460cd/m² and reflective glare was minimal.