If you want to delete photos from your iPhone 4s, there are a few different ways to go about it. The first way is to use the Photos app. Open the Photos app and select the photos you want to delete. Tap on the photo and then tap on the trash can icon in the bottom right corner of the screen. This will take you to a menu where you can choose to delete the photo permanently or just remove it from your album. The second way is to use iTunes. Open iTunes and connect your iPhone 4s to your computer. Click on your iPhone in the left column of iTunes and select Photos from the drop-down menu. Select all of the photos that you want to delete and then click on Delete Selected Photos from Album in the top right corner of iTunes. This will take you back out to the main Photos window where you can now choose whether or not to delete each photo permanently or just remove it from your album. The final way is to use iCloud Photo Library if you have enabled it on your iPhone 4s. Open Settings on your iPhone 4s and scroll down until you see iCloud Photo Library under Storage & Backup. If iCloud Photo Library is not enabled, enable it by clicking on Enable and then entering your Apple ID password when prompted. Under iCloud Photo Library, select all of the photos that you want to delete and then click on Delete Selected Photos from Album in the top right corner of iCloud Photo Library. This will take you back out to the main Photos window where you can now choose whether or not to delete each photo permanently or just remove it from your album ..