There could be several reasons why your iPhone is not sending pictures to an Android device. Here are some common issues and their potential solutions:
iMessage vs. SMS/MMS: If you're sending pictures through iMessage, which is Apple's messaging platform, they may not be compatible with Android devices. iMessage uses a different protocol than standard SMS/MMS, so make sure you're sending the pictures as regular text messages (green bubbles) rather than iMessages (blue bubbles).
Mobile data or Wi-Fi connectivity: Ensure that you have a stable internet connection, whether it's through mobile data or Wi-Fi. Poor connectivity can prevent your iPhone from sending pictures. Try toggling your Wi-Fi or mobile data off and on, or connecting to a different network, to see if that resolves the issue.
File size or resolution: Large picture files or high-resolution images may not send or be received properly on certain devices. Try reducing the file size or resolution of the pictures before sending them. You can do this by using the built-in Photos app on your iPhone or by using a third-party app to compress the images.
Software or compatibility issues: Ensure that both your iPhone and the Android device are running the latest software updates. Outdated software can sometimes cause compatibility issues between devices. Check for updates and install any available software updates on both devices.
Messaging app limitations: Different messaging apps may have limitations on the size or type of files they can send. If you're using a third-party messaging app, check its settings or documentation to ensure there are no restrictions on sending pictures.
Restart or reset: Try restarting both your iPhone and the Android device. If the issue persists, you can also try resetting the network settings on your iPhone. This will remove any saved Wi-Fi passwords and other network settings, so make sure you have them handy to reconnect afterwards.