Final answer:
To adjust the iPhone alarm volume, access 'Settings', tap 'Sounds & Haptics', and adjust the 'Ringer and Alerts' slider. Alternatively, set the volume through the Clock app's alarm sound settings and use the side buttons. Ensure 'Change with Buttons' is enabled if you wish to use the volume buttons for alarm adjustments.
Step-by-step explanation:
Adjusting your iPhone's alarm volume is a straightforward process. To make changes to the alarm volume, you will need to access your iPhone's Settings. Once there, scroll down and tap on Sounds & Haptics or just Sounds depending on your iOS version. Here, you'll find the Ringer and Alerts slider, which controls the volume for ringtones, alerts, and alarms. To adjust your alarm volume, simply drag the slider to your desired volume level. It's important to note that your iPhone's side switch must not be set to silent, or the alarm will only vibrate.
If you are using iOS 11 or later, there is an alternative way to set your alarm volume directly through the Clock app. When creating a new alarm or editing an existing one, you have the option to choose a Sound for your alarm. After selecting a sound, you can use the volume keys on the side of your iPhone to set the alarm volume while the preview of the alarm sound is playing. This will set the volume for alarms without affecting other alert volumes on your device.
To summarize, adjusting alarm volume on an iPhone involves using the Settings app to navigate to Sounds & Haptics and adjusting the Ringer and Alerts slider or, for newer iOS versions, directly setting the volume through the Clock app by editing an alarm's sound and using the volume buttons during the preview. Remember to ensure the Change with Buttons option is on if you want to use the physical volume buttons to adjust your alarm volume at any time.