eSimGuide
2026 Guide

Does the Samsung Galaxy S21+ Ultra 5G Support eSIM?

Find out if your Samsung Samsung Galaxy S21+ Ultra 5G supports eSIM technology and learn how to set it up.

eSIM Supported
EG
eSIM Guide Team
Updated January 2026

Yes, the Samsung Galaxy S21+ Ultra 5G fully supports eSIM, providing you with the convenience of activating cellular plans digitally without a physical SIM card. This powerful Samsung smartphone allows for dual SIM functionality, enabling you to seamlessly manage two different numbers or plans using both an eSIM and a traditional physical SIM simultaneously.

Yes, the Samsung Galaxy S21+ Ultra 5G fully embraces the convenience of eSIM technology, offering users a flexible and modern approach to connectivity. This flagship device supports dual SIM functionality, allowing users to utilize both a physical nano-SIM card and an eSIM simultaneously. This means you can manage two separate phone numbers or data plans on a single device, ideal for separating work and personal contacts, or for frequent travelers who benefit from local data plans without the hassle of physical SIM card swaps. The integration of eSIM on the Samsung Galaxy S21+ Ultra 5G provides a streamlined experience, eliminating the need to physically open the SIM tray when changing carriers or plans.

Activating an eSIM on your Samsung Galaxy S21+ Ultra 5G is a straightforward process.

  • First, navigate to Settings on your device.
  • From there, tap on Connections, then select SIM card manager.
  • You'll see an option to Add mobile plan; tap this to begin the eSIM activation.
  • Your device will then prompt you to either scan a QR code provided by your carrier or manually enter activation information. Most carriers provide a QR code, which simplifies the setup considerably.
  • Once the scan is complete and the plan is downloaded, you can set your preferred SIM for calls, messages, and mobile data within the SIM card manager. This seamless integration ensures that you can switch between cellular plans with ease, even labeling them for quick identification.

The benefits of eSIM on the Samsung Galaxy S21+ Ultra 5G are particularly pronounced for international travelers in 2025. With eSIM, you can quickly and easily purchase local data plans from carriers in your destination country, often at significantly lower rates than international roaming charges, all without needing to find a physical SIM card vendor. This eliminates the stress of searching for local kiosks upon arrival and avoids the risk of misplacing your primary SIM card. Furthermore, the dual SIM capability ensures you can maintain your home number for important calls while leveraging a local plan for data and local communication, providing unparalleled flexibility and cost-effectiveness.

Managing multiple eSIM profiles on your Samsung Galaxy S21+ Ultra 5G is designed to be intuitive. Within the SIM card manager, you can easily view all your active and stored eSIM profiles. You have the flexibility to switch between these profiles as needed, rename them for better organization (e.g., "Work," "Travel USA," "Home"), and even delete profiles that are no longer in use. For optimal performance, it's recommended to only keep active the eSIM profiles you're currently utilizing. This robust eSIM support makes the Samsung Galaxy S21+ Ultra 5G a highly versatile device for users who require dynamic and adaptable connectivity solutions.

Samsung Galaxy S21+ Ultra 5G eSIM FAQ

Yes, the Samsung Galaxy S21+ Ultra 5G does support eSIM functionality. This allows you to use a digital SIM profile instead of a physical nano-SIM card for your mobile service on this device, providing more flexibility.

Yes, the Samsung Galaxy S21+ Ultra 5G supports dual SIM capabilities. You can typically use one physical nano-SIM card alongside one eSIM, or in some configurations, two active eSIMs simultaneously. This is great for managing separate work and personal lines or for international travel.

Activating an eSIM on your Samsung Galaxy S21+ Ultra 5G is a straightforward process. You'll typically need an activation code or QR code from your mobile carrier. Here's a general guide:

  • Go to Settings > Connections > SIM card manager.
  • Tap Add eSIM or Add mobile plan.
  • Follow the on-screen prompts to scan the QR code provided by your carrier or manually enter the activation details.
  • Once added, you can manage your eSIM profile within the SIM card manager.

Using an eSIM on your Samsung Galaxy S21+ Ultra 5G offers several advantages. It allows for easier switching between carriers, simplifies international travel by enabling local plans without physical SIM swaps, and enhances device security as an eSIM cannot be physically removed if your phone is lost or stolen. It also frees up the physical SIM slot for another purpose.

Other Samsung Phones with eSIM

The Samsung Galaxy S21+ Ultra 5G, released in 2025, fully embraces the convenience of eSIM technology. This means you can effortlessly manage multiple cellular plans without the need for physical SIM cards, offering unparalleled flexibility whether you're a frequent traveler or simply want to separate work and personal lines.

Maximize your mobile experience by exploring the benefits of eSIM today.

  • Discover eSIM plans: Check with your current carrier or explore third-party eSIM providers to find plans that suit your needs.
  • Activate with ease: Enjoy quick and simple activation processes, often achievable directly from your device settings.
  • Simplify your connectivity: Experience a more streamlined and efficient way to stay connected, both at home and abroad.