What is aneSIM, and How to Activate It on Your Smartphone?

In the ever-evolving world of mobile technology, the eSIM (embedded SIM) is revolutionising the way we connect our devices to cellular networks. If you’re considering buying a prepaid SIM in Chennai, you might wonder if an eSIM is a better option. In this guide, we’ll explore what an eSIM is, its advantages, and how to activate an eSIM on your smartphone.

Understanding eSIM Technology

An eSIM is a digital, programmable version of the traditional physical SIM card. It serves the same purpose as a physical SIM—authenticating your identity with your mobile network—but without the need for a SIM slot or manual card swapping.

Key Features of eSIM

Feature	eSIM	Physical SIM
Form Factor	Embedded, soldered onto the motherboard	Removable card
Activation	Remote (QR code/app/activation code)	Manual insertion
Switching Carriers	Instant, no hardware change required	Requires card swap
SIM Slot Required	No	Yes
Multiple Profiles	Yes (can store and switch easily)	No (1 per card)

Advantages of eSIM

• No need for a physical SIM card or tray, enabling slimmer device designs.
• Switch carriers or plans instantly—ideal for frequent travellers or users managing multiple numbers.
• Supports multiple profiles, allowing easy switching between work and personal lines or local and international plans.

How to Activate an eSIM on Your Smartphone

Here is a step-by-step guide to activating an eSIM on your phone:

1. Initiate eSIM Request via Airtel Thanks App

• Open the app and log in using the number you want to convert.
• Tap Upgrade to eSIM under Shortcuts.
• Select your device (“this device” or “another device”) and enter its 32-digit EID.
• Submit the request.

2. Verify via OTP and Call

• You’ll get an OTP—enter that in the app.
• Within ~10 minutes, Airtel will call to confirm your request.

3. Download and Activate eSIM Profile

• After 2 h, download and activate the new eSIM profile, remove your physical SIM, and restart your device.

Advantages of Airtel eSIM

• Seamless dual-SIM use.
• No physical SIM hassle—eco-friendly and convenient.
• Instant activation and easy profile switching.

Buying a Prepaid eSIM in Chennai

If you’re looking to buy a prepaid SIM in Chennai and activate an eSIM, here’s what you need to do:

1. Visit a local retailer or carrier store, such as Airtel. Alternatively, use their online platforms.
2. Request a prepaid eSIM plan. Ensure your device is eSIM-compatible and bring it with you.
3. Complete the Know Your Customer (KYC) process by providing valid government-issued ID and address proof.
4. The carrier will either issue a physical prepaid SIM (which you can later convert to eSIM) or directly provision an eSIM by sending you an OTP via SMS.
5. Follow the activation steps outlined earlier to activate your eSIM profile.

With its convenience, flexibility, and growing support across devices, it’s no wonder more and more users are opting for eSIMs over traditional physical SIM cards.

If you’re considering buying a prepaid SIM in Chennai, an eSIM might be the perfect choice for you. Major carriers such as Airtel offer a wide range of prepaid plans tailored to different needs and budgets. With Airtel prepaid plans, you can enjoy benefits like high-speed data, unlimited calling, complimentary OTT subscriptions, and more, all while experiencing the convenience of an eSIM.

So why wait? Embrace the future of mobile connectivity and explore the world of eSIMs today!