If you have made a lot of pictures on the iPhone 6 with the camera, then your gallery will be full of photos. But many of them are mostly snapshots that are not needed. If you want to delete these pictures now and you do not know how, then we want to explain how to proceed on the iPhone 6.
Open the photo app on the iPhone 6. If the images are displayed, you want to delete, then tap now at the top right on "Select". You can now select the images that you want to delete from your iPhone 6. If you have made the selection, then just tap at the bottom right to the trash icon to delete all marked images on the iPhone 6.
You know now how to delete on the iPhone 6 images from the internal memory.