Hey Notty, we appreciate your honest feedback on Apple iPhone 15. We are really sorry to hear that the speaker of the device is unsatisfactory for you, and we can imagine how frustrating and disappointing it must be when the phone does not work as expected, especially if you rely on the speaker function. We assure that we are here to troubleshoot this issue and if needed we can help you explore options, feel free to reach out to us. Meanwhile, you can try this troubleshooting steps and see if it makes any changes for your device speaker:

1.Check Silent Mode: Ensure the Ring/Silent switch is not set to silent mode. If it is, toggle it to the Ring position.
2.Adjust Volume: Use the volume buttons or Control Center to increase the sound level.
3.Do Not Disturb: Swipe down from the top-right corner to open Control Center and ensure Do Not Disturb is off.
4.Bluetooth: Disconnect any Bluetooth devices that might be routing audio away from the internal speakers.
5.Clean Speaker: Use a soft brush or cloth to clean the speaker opening to remove any dust or lint.
6.Restart: Restart your iPhone to clear temporary software glitches.
7.Software Update: Check for and install any available iOS software updates.
8.Reset Settings: If issues persist, reset all settings to default.