If you’ve recently purchased an iPhone or changed your old one, setting up iMessage is really crucial. iMessage is Apple’s built-in messaging service that you can set up on your iPhone or any other iOS device to send texts, photos, videos, documents, and more. Wondering if setting up iMessage is difficult?
Don’t worry, in this complete guide, we’ll explore what iMessage is, how to enable it step-by-step, different workarounds to fix common activation problems, and how to make sure it is working properly. Let’s get started!
What is iMessage and Why Should I Use It?
iMessage is Apple’s built-in messaging app that you can easily install on any iOS and macOS devices. It allows you to send text messages, photos, audio notes, documents, and other types of data using the internet instead of regular SMS charges. Now wondering when should I use it? You can use iMessage because it helps you to:
- Send unlimited text messages
- Send photos and videos in high quality
- Send voice notes
- Share location
- Create group chats
- Use stickers, GIFs, and effects
iMessage allows you to send these messages using Wi-Fi or mobile data. Messages sent through iMessage appear in blue bubbles.
How is iMessage Different From Regular Text Messages (SMS)?
Many of you must be wondering how iMessage is different from regular text messages (SMS). There are various parameters on which we can differentiate these messaging tools. This includes:
- Internet Usage: iMessage uses the internet and can send messages even with Wi-Fi or mobile data. SMS needs a proper cellular mobile network signal to send messages.
If you don’t have the internet, iMessage won’t send (unless “Send as SMS” is turned on).
- Message Colour: On your iPhone, you can clearly see that messages sent from iMessage appear in a blue bubble while those from the SMS app appear in a green bubble.
- Device Compatibility: Messages sent from iMessage work only between Apple devices (iPhone, iPad, Mac), while those from SMS work with any phone, including Android.
- Media Quality: iMessage allows you to send media files (including photos and videos) in high quality, while SMS/MMS may reduce photo and video quality. That’s why pictures look clearer in blue messages.
- Cost: As iMessage only uses internet data, it is free to send messages, while SMS may cost per message depending on your mobile plan.
Suggested Read: How to Recover Deleted Contacts on iPhone
How do I Enable iMessage on my iPhone?
Follow the below quick steps to enable iMessage on your iPhone:
- Firstly, open the Settings app on your iPhone.
- Click Messages, then turn ON the iMessage switch

That’s it! Your phone may show “Waiting for activation.” This is normal. It usually activates within a few minutes.
Now, here are different options by which you can enable iMessage on your iPhone:
Method 1: Enable iMessage Using Your Phone Number
To enable iMessage on your iPhone using a phone number, you have to:
- Firstly, ensure your iPhone has a proper SIM card.
- Connect it to Wi-Fi or mobile data.
- Now, go to Settings > Messages, turn ON iMessage.
- Click Send & Receive.
- Make sure your phone number is checked.
Once done, your number will be linked to iMessage. You can also confirm the same by sending text messages using iMessage.
Method 2: Enable iMessage Using an Apple ID
If you were wondering how to enable iMessage using your email (Apple ID), this is the easiest way:
- Go to Settings > Messages.
- Turn ON iMessage, then click Send & Receive.
- Now, sign in using your Apple ID.
- Select your email address.

Once enabled, you can send your iMessages from your email too.
Method 3: Enable iMessage on iPhone without a SIM Card
Wondering if you can set up iMessage on your iPhone without any SIM card? Yes, just follow the below steps:
- Firstly, connect your iPhone to a Wi-Fi network.
- Go to Settings > Messages.
- Turn ON iMessage, then sign in with your Apple ID.
In this case, only your email will work, not your phone number.
Suggested Read: How to Fix No Sound issue on iPhone Live Photo
How to Turn ON iMessage on a New Phone?
If you have a brand new iPhone, follow the below steps to set up iMessage:
- First, complete your iPhone setup, then sign in with your Apple ID.
- Insert your SIM card, then connect your iPhone to Wi-Fi.
- Go to Settings > Messages, then enable iMessage.
It may take a few minutes to activate iMessage on your new phone. If it doesn’t activate quickly, just restart the phone once.
How Do You Enable iMessage If It’s Not Working?
Sometimes you may encounter issues when your iMessage won’t work or fails to activate on your iPhone. If you see “Waiting for activation” for a long time, try this:
- Check Internet Connection: Ensure your device is connected to a stable Wi-Fi or Mobile data.
- Restart iPhone: Turn off your phone and restart it.
- Check Date & Time: Incorrect date and time on your iPhone may prevent it from connecting to iMessage.
- Update Software: Outdated software can be a probable reason for iMessage-related issues. You can go to Settings > General > Software Update to check if any update is available. Install, if any.
Note: If the issue exists even after 24 hours, contact your mobile carrier.
How to Check If iMessage Is Enabled on Your iPhone
To confirm if iMessage is enabled on your iPhone, follow the below steps:
Method 01: Check in Settings
- Open the Settings app, go to Settings > Messages.
- If the iMessage toggle is green, it is enabled.
Method 02: Try Sending Messages
- Launch the Messages app.
- Try sending a text to another iPhone user.
- If the message bubble is blue, iMessage is working.
How to Turn Off iMessage (If Needed)?
Sometimes you may need to disable iMessage on your iPhone. To turn it off:
- Launch the Settings app, tap Messages.
- Turn OFF the iMessage switch.
It is good to turn off iMessage on your iPhone, especially in the following cases:
- You are switching to Android
- You are selling your iPhone to someone else
- You are facing repeated message issues
Final Tips to Avoid iMessage Activation Problems
If you are experiencing an activation issue on your iPhone, follow the below simple tips to avoid it:
- Ensure a SIM is inserted in your device before activation.
- Keep the internet stable
- Use the correct Apple ID password
- Install all software regularly
Suggested Read: Play CS:GO (Counter-Strike: Global Offensive) on Mac
Best Settings to Keep iMessage Working Smoothly
Here are some additional tips that you can consider on your iPhone to ensure the smooth functioning of the iMessage app:
- Turn ON MMS Messaging: Enabling MMS messaging allows you to send pictures to Android users. For this, go to Settings > Messages > Turn on MMS.
- Enable Send as SMS: If your device is not connected to the internet, your message will be sent as SMS.
- Configure Send & Receive Settings: Make sure your phone number is selected and iMessage is properly set up.
Wrapping Up
Enabling iMessage on your iPhone may seem like a challenging task, especially if you are a beginner. But it’s not actually. You can simply go to Settings > Messages > Turn On iMessage to sync iMessage on your iPhone. All you need is a stable internet connection and a SIM card inserted in your iPhone. Within minutes, you’ll be able to send blue bubble messages, share media, and enjoy free messaging with other Apple users.
Frequently Asked Questions (FAQs)
Go to Settings > Messages and turn on iMessage. Make sure you are connected to the internet and signed in with your Apple ID.
There are several reasons, such as poor internet connection, wrong date & time, or SIM issues, which prevent iMessage from activating on your iPhone. In such cases, you can restart your phone and check network settings.
No, iMessage is absolutely free. It only uses Wi-Fi or mobile data.
Yes. You need your Apple ID email and Wi-Fi to enable iMessage without a phone number.