The flagships of 2017

Yeah, the $950 Galaxy Note 8 is technically a closer competitor to the$999 iPhone X because of the Note's higher price tag, but don't overlook the Galaxy S8 ($750) and S8+ ($850).

The Galaxy S8's display is the same size as the iPhone X's, at 5.8 inches, and both screens use OLED technology for eye-popping colors and ultrawide viewing angles. The 6.2-inch Galaxy gives you an even bigger screen than the iPhone X but still costs less dough.
But the iPhone X has some secret weapons of its own, including an all-new design, dual rear cameras, Face ID and a superfast A11 Bionic processor. Which phone is right for you? Read on.

Design:
There's no question that the Galaxy S8 and iPhone X are two of the most beautiful phones of the year. The iPhone X has a near edge-to-edge screen up front and an elegant glass back available in Silver and Space Gray. The stainless-steel band that runs along the outside of the phone really pops while giving the handset a very sturdy feel.

The Galaxy S8's Infinity Display is even sexier, though, as it's curved and doesn't have a notch that interrupts the flow of the front of the phone, which the iPhone X has. Both the S8 and iPhone X are water-resistant, but only Samsung's phone includes a headphone jack and microSD card slot.

Lastly, at 5.5 ounces, the S8 is a little lighter than the 6.1-ounce iPhone X. In fact, the S8+ weighs the same as the iPhone X, even though the S8+ has a bigger, 6.2-inch screen. The S8+ is taller, though, which makes it more of a stretch for one-hand use.

Display:
Samsung has long been the leader in OLED screens for phones, but it's now been leapfrogged. In side-by-side tests, the iPhone X's (2436 x 1125) panel delivered a brighter image, wider viewing angles and better contrast than the displays on the S8 and S8+ (both 2960 x 1440 pixels).

Take this photo of a lake and surrounding mountains. On the Galaxy S8 and S8+, the sky is a deeper blue, but the iPhone X's display delivers a more-vibrant green grass and truer whites in the clouds. The clouds in the S8+'s screen look more magenta.
In addition, the brighter panel on the iPhone X gives it wider viewing angles. Under normal, indoor conditions, the iPhone X hit 574 nits, compared to 543 nits for the S8 and 475 nits for the S8+.

The displays on the S8 and S8+ do cover more of the sRGB color gamut, exceeding 180 percent, versus 123 percent for the iPhone X.

Cameras
Given that the iPhone X has dual rear cameras and the S8 has a single shooter, you would think this wouldn't be a fair fight. But that's not the case. Samsung's phone more than held its own when pitted against Apple's flagship. But I would definitely prefer the camera of the iPhone. Because of its dual sensors. You may check result photos via google.

Battery Life
The iPhone X lasts longer than the Galaxy S8 but not as long as the S8+.

On the Tom's Guide Battery Test, which involves surfing the web on 150 nits of screen brightness, the iPhone X endured for 10 hours and 49 minutes. That's about an hour longer than the smartphone average, and it's in between the run times from the Galaxy S8 (10:39) and S8+ (11:04).

Value
This round is a no-brainer. The Galaxy S8 starts at a much lower $750, or$250 less than the iPhone X. The Galaxy S8+ starts at $850, and the only difference is the larger, 6.2-inch display. You can't order a model with more internal storage, but you can upgrade via a microSD card.

My CHOICE:
Well guys in the end i'd say that I'm an iOS guy. I prefer the iphone, not because I'm an Apple user but definitely because of its high functioning features and the beautiful design.