Galaxy S21 Series Reaches End of Life
Samsung has officially removed the Galaxy S21 series from its software update roadmap as part of the February 2026 patch schedule, marking the end of support for the 2021 flagship lineup.
What This Means
Affected Devices
| Device | Release Date | Final Update |
|---|---|---|
| Galaxy S21 | January 2021 | January 2026 |
| Galaxy S21+ | January 2021 | January 2026 |
| Galaxy S21 Ultra | January 2021 | January 2026 |
| Galaxy S21 FE | January 2022 | January 2026 |
Support Timeline Completed
The Galaxy S21 series received:
- 4 years of OS updates (Android 11 → Android 15)
- 5 years of security patches
- Regular monthly security updates until January 2026
Security Implications
Risks of Running Unsupported Devices
Without security updates, Galaxy S21 devices face:
┌─────────────────────────────────────┐
│ Unsupported Device Risks │
├─────────────────────────────────────┤
│ ⚠ Unpatched vulnerabilities │
│ ⚠ No protection against new CVEs │
│ ⚠ Banking apps may stop working │
│ ⚠ Enterprise MDM compliance issues │
│ ⚠ Potential data breach exposure │
└─────────────────────────────────────┘
Recommendations for S21 Owners
- Consider upgrading to a supported device
- Increase security awareness - Be cautious with downloads
- Use additional protection - Consider mobile security apps
- Backup regularly - Prepare for potential issues
- Monitor app compatibility - Some apps may stop working
Galaxy S22 Moves to Quarterly Updates
As part of the same announcement, Samsung confirmed that the Galaxy S22 series will now receive updates on a quarterly basis rather than monthly.
| Device Series | Update Frequency |
|---|---|
| Galaxy S24, S25 | Monthly |
| Galaxy S23 | Monthly |
| Galaxy S22 | Quarterly |
| Galaxy S21 | End of Support |
Samsung's Update Policy Evolution
Current Commitment (2024+ Flagships)
Samsung now offers for flagship devices:
- 7 years of OS updates
- 7 years of security patches
Historical Comparison
| Era | OS Updates | Security Updates |
|---|---|---|
| Pre-2020 | 2 years | 3 years |
| 2020-2021 | 3 years | 4 years |
| 2022-2023 | 4 years | 5 years |
| 2024+ | 7 years | 7 years |
Alternative Options
For Users Needing Extended Support
If you must continue using an S21:
## Security Hardening Checklist
- [ ] Enable Google Play Protect
- [ ] Use a reputable mobile security app
- [ ] Avoid sideloading APKs
- [ ] Use strong, unique passwords
- [ ] Enable 2FA on all accounts
- [ ] Be cautious with public Wi-Fi
- [ ] Review app permissions regularly
- [ ] Consider using a VPNUpgrade Recommendations
| Budget | Recommendation | Support Until |
|---|---|---|
| Premium | Galaxy S25 Ultra | 2032 |
| Mid-Range | Galaxy S24 FE | 2031 |
| Budget | Galaxy A55 | 2028 |
Enterprise Considerations
MDM and Compliance
Organizations using Galaxy S21 devices should:
- Audit device inventory - Identify all S21 devices
- Plan replacement timeline - Budget for upgrades
- Update security policies - Address unsupported devices
- Consider BYOD implications - Personal devices in corporate use
Knox Platform Impact
Samsung Knox features will continue to function, but:
- No new security patches
- Potential vulnerability exposure
- May affect compliance certifications
What's Next for Samsung
February 2026 Update Highlights
Samsung's February patch includes:
- Security fixes for Galaxy S22-S25 series
- One UI improvements
- Bug fixes and performance enhancements
- New features for supported devices
Upcoming Devices
- Galaxy S25 series - Available now
- Galaxy Z Fold 7 - Expected August 2026
- Galaxy A56 - Expected March 2026
Related Articles
- Mobile Device Security Best Practices
- Enterprise Mobile Device Management