Samsung Rolls Out Android 15-Based One UI 7 Update for Galaxy S21 Series in Canada

Naveen Thakur
16 May, 2025

Samsung Pushes Android 15-Based One UI 7 Update for Galaxy S21 Series in Canada

Samsung has officially rolled out the Android 15-based One UI 7 update to the Galaxy S21 series in Canada, marking a major milestone for the 2021 flagship lineup. This update, which has already made its way to other regions such as India, the United States, and parts of Europe, is now available for Canadian users of the Galaxy S21, S21+, and S21 Ultra.

Samsung Galaxy S21 Android 15 One UI 7 Update in Canada
Android 15-Based One UI 7 Rolls Out to Galaxy S21 Series in Canada

This software release represents the final major Android OS update for the Galaxy S21 series, completing Samsung’s promise of four generations of Android updates for these devices. The phones originally launched with Android 11 and are now concluding their major OS upgrade journey with Android 15.

Let’s dive deeper into what this new update brings to the table, which features you can expect, the build numbers, update size, how to install it, and what the future holds for Galaxy S21 users.

📲 Eligible Models and Firmware Details in Canada

The One UI 7 update, based on Android 15, is currently rolling out to the following Galaxy S21 models in Canada:

  • Galaxy S21 (SM-G991W): Build number G991WVLUEHYDA

  • Galaxy S21+ (SM-G996W): Build number G996WVLUEHYDA

  • Galaxy S21 Ultra (SM-G998W): Build number G998WVLUEHYDA

The update package weighs approximately 3.6GB, so users are advised to connect to a stable Wi-Fi network and ensure their phone has sufficient storage and battery before downloading and installing the update.

 Canada Joins the Global Rollout

Samsung has been systematically rolling out the One UI 7 update for the Galaxy S21 lineup across multiple regions. The deployment started in countries like:

  • India

  • United States

  • Germany

  • France

  • South Korea

  • United Kingdom

Now, Canada joins the list, ensuring that users across North America enjoy the latest innovations and performance enhancements delivered by One UI 7 and Android 15.

📦 What's New in One UI 7 for Galaxy S21?

The One UI 7 update brings a refreshed user interface, productivity tools, privacy enhancements, and several new visual elements. Here’s a look at the most exciting changes and upgrades included in the Canadian release:

1. 🔄 Vertical Scrolling App Drawer

A long-awaited feature, the vertical scrolling app drawer replaces the horizontal swipe interface. This layout provides faster access to apps and a more organized view, especially for users with many installed applications.

2. 🎨 Redesigned App Icons

Samsung has completely redesigned the app icons with a more uniform and modern aesthetic. The new icon pack offers a softer color palette and smoother curves, aligning better with Android 15's visual identity.

3. 🗂️ Bigger Home Screen Folders

The folder design has been enhanced with a larger layout to make it easier to identify and access apps. You can now see more apps in a single folder view, reducing the need for additional taps or swipes.

4. 🧩 Better Widget Customization

Widgets get a major overhaul in One UI 7. You can resize widgets with greater flexibility, stack them for better home screen efficiency, and enjoy new transparency levels and interaction features. This update makes personalization easier and more powerful than ever.

5. 🌟 Updated App Designs

Samsung has refined the system apps such as Messages, Contacts, Phone, Gallery, and more. These updates are not just cosmetic—improved navigation, smoother animations, and intuitive layouts improve usability significantly.

6. 🛡️ April 2025 Security Patch

This update includes the April 2025 Android security patch, which addresses multiple system vulnerabilities and improves the overall stability and performance of your Galaxy S21 device.

⚙️ How to Check and Install the Update

If you're a Galaxy S21, S21+, or S21 Ultra user in Canada, here’s how you can manually check for the update:

  1. Open the Settings app.

  2. Scroll down and tap on Software update.

  3. Select Download and install.

  4. If the update is available, follow the on-screen instructions to complete the installation.

💡 Tip: Make sure your phone is connected to Wi-Fi, has at least 50% battery, and enough storage space before you begin the update process.

📉 Final Major Android Update – What This Means

Samsung’s update policy guarantees four years of major Android updates and five years of security updates for flagship models like the Galaxy S21 series. This Android 15-based One UI 7 release completes the four promised upgrades:

  • Android 11 (Launched with)

  • Android 12

  • Android 13

  • Android 14

  • Android 15 (Final OS Update) ✅

While the Galaxy S21 series will not receive Android 16, Samsung will continue to provide security patches and critical fixes at regular intervals until 2026. This ensures your device stays safe and functional even without a new OS version.

💡 Performance and Battery Improvements

Apart from visual enhancements and new features, many users have reported improved performance metrics after installing One UI 7:

  • Faster app launches

  • Improved RAM management

  • Reduced background activity

  • Better battery efficiency

These improvements are especially valuable for aging devices like the Galaxy S21 series, helping prolong their usability.

🔐 Enhanced Privacy and Security Controls

Android 15 introduces new privacy tools, and Samsung complements them with its Knox security framework. Some of the enhancements include:

  • Improved permission management

  • Advanced app access control

  • Secure Photo Picker

  • Granular microphone and camera usage logs

Samsung’s One UI 7 places a stronger emphasis on giving users more visibility into how apps use their data and more control over system-level permissions.

🌍 Impact on the Samsung Ecosystem

The One UI 7 update also improves cross-device connectivity, especially for users in the Samsung ecosystem. With better integration between:

  • Galaxy tablets and smartphones

  • Galaxy Buds and Galaxy Watch

  • Samsung Smart TVs and SmartThings

...users can expect smoother handoffs, synchronized notifications, and smarter automation across devices.

📝 User Feedback from Canada

Early adopters of the update in Canada have shared positive impressions:

  • “The new app drawer is so much better—feels natural.”

  • “Phone is definitely faster and animations are smoother.”

  • “Love the widget stacking. Makes my home screen so clean.”

  • “Sad that it’s the last big update, but Samsung did a great job.”

These testimonials suggest that Samsung’s final major OS update for the Galaxy S21 is both well-received and well-optimized for Canadian networks.

📅 What’s Next for Galaxy S21 Users?

Although the Galaxy S21 series won’t be receiving Android 16, the devices are still supported with:

  • Monthly or quarterly security updates

  • Bug fixes and stability patches

  • Samsung app updates via Galaxy Store

Samsung may also push One UI 7.1 or minor feature updates, so keep your eyes on future changelogs even if the major upgrade path has ended.

📌 Final Thoughts

The Android 15-based One UI 7 update is a significant and polished release for the Galaxy S21 series. With a revamped user interface, improved customization options, better performance, and enhanced security, this update ensures that Galaxy S21 users in Canada enjoy a refreshed experience even as the device reaches the end of its major update cycle.

Samsung continues to prove its commitment to long-term support and feature-rich updates, even for devices approaching the end of their upgrade lifecycle.

If you're a Galaxy S21 series owner in Canada, make sure to check for the One UI 7 update today and enjoy the latest innovations before the curtains close on major OS upgrades for your device.


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