Reminders can help you start a session, but too many alerts turn training into another stream of interruptions. Decide which notifications solve a real problem. A calendar reminder or a planned rest timer may be useful. Social comparisons, promotional messages, and repeated prompts to review statistics may not help the work you are trying to complete.
Set notifications before the session rather than adjusting them between every exercise. Keep important personal contacts reachable if needed while reducing unrelated distractions. If you use a timer, understand its role within your program. An alarm is a cue to assess readiness and follow the plan, not a command to rush into the next set regardless of circumstances.
Notice what happens when the phone interrupts you. Do you return directly to the exercise, or lose several minutes to unrelated browsing? Use that observation to change the settings. There is no need for an elaborate productivity system. A few deliberate choices can keep the device useful without allowing it to dictate the pace of the entire workout.
Review the arrangement after a week of ordinary sessions. Keep the alerts that improve preparation and remove those you routinely dismiss. Technology should make the routine easier to carry out. A quieter phone can leave more room for the simple tasks that matter in the gym: setup, controlled movement, recovery, and a clear record of the work.