To erase pictures on your iPhone, first open the Photos app and select the picture you want to erase. Tap the red “X” in the top-left corner of the picture, then select Erase from the menu that appears.

Photos can’t be deleted on Android devices with a microSD card. Photos are stored in the internal storage of the device.

There are a few reasons why your photos may be taking up a lot of storage space on your phone or computer. Some photos can be large because they were taken with a high-resolution camera, while others may be large because they’re compressed using a compression algorithm. Additionally, some photos are stored as JPEGs instead of PNGs or other more compression-friendly formats, which can also take up more space.