The Google Pixel lacks a flash for the front camera. There are many phones that feature a front-facing LED flash which some say that is a must have when taking selfie shots because it makes your face stand out when shooting in very dark areas. The Huawei Honor 7, Sony Xperia XA Ultra, Motorola Mot X Pure Edition, HTC Desire Eye, Sony Xperia C4, Sony Xperia C5 Ultra, Asus Zenfone Selfie, Samsung Galaxy J7, Sony Xperia C3, Samsung Galaxy J5, Blu Selfie and others - all have a soft front LED flash to help illuminate and make the best out of your selfie images.
Every phone that put emphasize on selfie shooting comes with a front LED flash, even the Blue Selfie that costs under $200 come with one. I can't think of a reason why Google didn't opt to include one in its premium phone. I don't need to convince you that many people enjoy shooting portrait shots of themselves using the front-facing camera and love sharing photos of themselves with their friends. Having a front LED flash can really help in providing the needed illumination and soften face shadows that can make the difference between a beautiful selfie images than a bad looking selfie image.
The front flash gives your face a nice glow and help in brightening your face when shooting in a backlit scene. It's especially important in dark scenes where your face might turn up completely black, it just helps to take better nighttime selfies.
There are some alternatives. For example, you can purchase a clip-on flash like the Cyxus Round Spotlight (costs around $40 on amazon) and you can use it in conjunction with your flash camera to produce well-lit selfies. This gadget provides a soft diffused light like the one that comes from a lighting soft box and helps in eliminating harsh shadows around the nose, eyes, and chicks and gives a smoother more even look to your face.
This is why, at least when it comes to selfies, the Google Pixel fails. A premium phone should have a front flash and I hope the next generation Pixel phones will have one.