Which feature can help prevent distractions during work or study hours on iPhones?

The feature that effectively helps prevent distractions during work or study hours on iPhones is Do Not Disturb. When activated, Do Not Disturb silences incoming calls, alerts, and notifications while the device is locked, allowing users to focus on their tasks without interruptions from messages or calls. This is particularly useful during work or study sessions, as it creates a focused environment free from potential distractions.

While other options also serve specific purposes, they do not specifically target the issue of distraction in the context of work or study. Airplane Mode, for example, disables all wireless communication but is typically used when traveling or in locations where wireless devices must be turned off. Screentime Management helps users track and limit their app usage, promoting healthy device habits but does not actively block notifications. Low Power Mode conserves battery life by reducing background activity and visual effects but does not inherently prevent distractions.