Does Samsung Galaxy S21 work with Android 15?
Quick compatibility check between Samsung Galaxy S21 and Android 15.
Confirmed compatible
Samsung Galaxy S21 received Android 15 via the One UI 7 update.
This compatibility check covers Android 15 (major version 15). Minor version updates (e.g., Android 15.1) may have different compatibility characteristics.
High confidence · Updated May 2026
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Samsung Galaxy S21 + Android 14 →
Works
Yes
Confidence
High
Known issues
None
Workaround
Not needed
What works & limitations
- All Android 15 core features
- One UI 7 interface improvements
- Enhanced privacy controls
- Predictive back gesture
- Health Connect improvements
- Samsung included Galaxy S21 series in the Android 15/One UI 7 rollout
- Update availability may vary by region and carrier
- Factory reset protection and privacy improvements carry over from Android 14
Results are based on publicly available data and aggregated user reports.
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