How to Set a Reminder on Your Smartphone (2025 Guide)

Modern life is busy. Doctor’s appointments, birthdays, lunch dates, even simple things like taking out the trash. It can be overwhelming keeping it all straight, even if you’re a sticky-note master. 

That’s where your smartphone can step in and be a real lifesaver. Setting a reminder on your phone takes just seconds, and it can keep your days running smoothly while unloading some of the weight of having to rely on memory (or sticky notes) alone.

In this quick 2025 guide, we’ll walk you through exactly how to set a reminder on your smartphone. Whether you use an iPhone or an Android device, you’ll learn the easiest ways to use your phone’s Reminders, Clock or Google Assistant apps to help you stay on track.

How to Set a Reminder on iPhone (2025 Update)

Apple’s built-in Reminders app is the easiest way to create reminders on your iPhone for specific times, days, locations and even priorities.

Using the Reminders App on iPhone

1. Open the Reminders app (it looks like a white notepad with colored dots)
2. Tap New Reminder or choose a list like Today or Scheduled
3. Type your reminder title—something like “Pick up prescription” or “Call Mary” (you can also add any corresponding notes below the title)
4. Tap Details to turn on Date, Time, Location or Priority (this is optional)
5. Tap Add and your reminder is ready to go

Pro Tip: If you have Siri enabled, you can skip the reminder setup and ask Siri to create the reminder for you. Just say, “Hey Siri, remind me to water the plants at 7 p.m.”

Using the Clock App on iPhone for Simple, Time-Based Alerts

If you just need a quick alert—say, to remind you when to take something out of the oven—the Clock app is another go-to iPhone reminder option.

1. Open the Clock app
2. Tap the Alarms icon at the bottom
3. Tap the + in the top right corner
4. Set your time and choose Repeat, Label, Sound and Snooze options
5. Tap Save

That’s it. Your phone will chime right on schedule.

Pro Tip: Same as with the Reminders app, if you have Siri enabled, you can ask Siri to create the alarm for you. You can also sync reminders across your Apple devices via iCloud, so any reminder you make on your iPhone will also show up on your iPad or Mac automatically.

How to Set a Reminder on Android (2025 Update)

Android offers a few quick and easy ways to set reminders, whether through the Google Assistant, Google Tasks or the Clock app. Let’s run through all three.

Using Google Assistant on Android to Set a Reminder

1. Say “Hey Google, remind me to [task] at [time]” (like, “Hey Google, remind me to check the oven at 6 p.m.”)
2. Your Google Assistant will confirm the details and save it
3. You’ll get a notification when it’s time

Pro Tip: Google Assistant reminders can sync with your Google Tasks list, so you can view and manage all your reminders in one place.

Using the Google Tasks App on Android for Reminders Like To-Do Lists & Repeating Tasks

1. Open the Google Tasks app (free from the Play Store)
2. Tap the + icon to add a new task
3. Give it a title 
4. Tap Add date/time to set a reminder
5. Choose whether it should repeat daily, weekly, monthly or custom
6. Tap Save

Your reminder will appear in your Google Tasks list, and you’ll get an alert right when you need it.

Using the Clock App on Android for Quick Alerts

1. Open the Clock app on your Android phone
2. Tap the Alarm tab
3. Hit the + icon to create a new alarm
4. Set your desired time and choose your days, label and tone
5. Tap Save

Using the Clock App on Android is simple, reliable and perfect for short-term reminders.

10 Helpful Smartphone Reminder Ideas

Here are a 10 reminders you can add on your smartphone that can help you free up some of your own internal memory:

1. Take daily medications
2. Call family or friends
3. Pay monthly bills
4. Move your car for alternate side parking or on street-sweeping day
5. Water plants or feed pets
6. Prep for your upcoming road trip
7. Remember appointments, birthdays and anniversaries
8. Take out the trash and recycling
9. Schedule when and where to vote
10. Attend work or personal meetings

FAQs: Setting Reminders on Your Smartphone

Can I set location-based reminders on my phone?
Yes! On iPhone, choose “Add Location” in the Reminders app. On Android, say “Remind me to [task] when I get to [place]” with Google Assistant, and it’ll alert you when you arrive.

Can I sync reminders across devices?
Absolutely. iPhone users can sync through iCloud, while Android users can use Google Tasks or Google Calendar to access reminders across all their devices.

Why didn’t my reminder go off?
Double-check that notifications are turned on for Reminders or Google Tasks in your phone’s settings. Also confirm that the app has background permissions enabled.

Can I set recurring reminders on my phone?
Yes. Both iPhone and Android let you repeat reminders daily, weekly, monthly or on custom schedules.

Which is better to use—Reminders or Clock?
Use Reminders for tasks with context (like errands or appointments) and Clock for quick time-based alerts (like timers or alarms).

Set One Final Reminder: Check Out Consumer Cellular

Reminders are one of the simplest but most powerful tools your smartphone offers. Whether you’re an iPhone or Android user, setting phone reminders makes it easy to stay organized, on time and in control of your day.

And here’s one final reminder: If you’re ready to make your wireless experience even more valuable, stop by your local Consumer Cellular store or visit us online to explore our affordable plans, easy-to-use devices and award-winning, 100% U.S. based support. 

Because at Consumer Cellular, we always put you first. No reminder required.