Upgrading from an Apple Silicon M1 Mac to a newer M4 Mac is one of the smoothest platform transitions Apple offers. Because both machines run on Apple Silicon and macOS, compatibility issues are minimal, performance gains are immediate, and migration tools are mature and reliable.
This article walks you through planning, migrating, and optimizing your setup when moving from an M1 Mac to an M4 Mac.
1. Understand What Changes (and What Doesn’t)
Before migrating, it helps to know what’s different—and what’s not.
What stays the same
- Apple Silicon architecture (ARM-based)
- macOS ecosystem
- Universal apps (no Rosetta dependency for most users)
- Migration Assistant compatibility
What improves on M4
- Significantly faster CPU, GPU, and Neural Engine
- Better battery efficiency
- Improved AI/ML performance
- Support for newer macOS features
- Higher memory ceilings and faster SSDs
👉 The key takeaway: this is an upgrade, not a platform change.
2. Prepare Your M1 Mac for Migration
Good preparation ensures a fast and error-free migration.
Update macOS
- Update your M1 Mac to the latest macOS version supported
- This reduces migration bugs and compatibility issues
Clean Up Your System
- Delete unused apps
- Remove old installers and downloads
- Empty the Trash
- Uninstall obsolete system extensions or VPNs
Check Storage Usage
- Go to System Settings → General → Storage
- Ensure you have enough space on the new Mac to receive all data
Back Up (Highly Recommended)
Even if you plan to use Migration Assistant, always create a backup:
- Time Machine (preferred)
- External SSD
- Network backup
3. Choose a Migration Method
Apple offers three main ways to migrate data.
Option 1: Migration Assistant (Recommended)
Best for most users.
You can migrate:
- Apps
- User accounts
- Files
- System settings
Supported transfer methods:
- Thunderbolt cable (fastest)
- Wi-Fi
- Ethernet
- Time Machine backup
Option 2: Time Machine Restore
Ideal if:
- You want a full system replica
- Your M1 Mac is no longer available
Option 3: Manual Migration
Best for advanced users or clean installs:
- Manually copy files
- Reinstall apps
- Reconfigure settings
4. Migrate Using Migration Assistant (Step-by-Step)
On Your M4 Mac
- Power on and begin setup
- When prompted, choose “Transfer from a Mac”
- Open Migration Assistant if already set up
On Your M1 Mac
- Open Migration Assistant
- Select “To another Mac”
- Authenticate and confirm the transfer
During Migration
- Select what to transfer (apps, files, settings)
- Wait for completion (time depends on data size and connection)
💡 Tip: Use a Thunderbolt cable for large data transfers—it’s dramatically faster.
5. Post-Migration Checks and Fixes
After migration, verify everything works as expected.
Check Applications
- Most apps will run natively
- Reinstall any app that:
- Fails to open
- Uses deprecated kernel extensions
- Requires license reactivation
Update Third-Party Software
- Creative tools (Adobe, Final Cut, Logic)
- Developer tools (Xcode, Docker, Homebrew)
- VPNs and security software
Sign Back Into Services
- iCloud
- Apple ID
- Password managers
- Banking or enterprise apps
6. Optimize for the M4 Chip
To fully benefit from the M4’s capabilities:
Enable Native Versions
- Replace Intel-only apps with Apple Silicon-native versions
- Remove Rosetta-dependent software if no longer needed
Adjust Performance Settings
- Enable high-performance modes (if available)
- Review battery and background process settings
Take Advantage of New Features
- AI-powered macOS features
- Enhanced media engines
- Faster ML workflows
- Improved external display support
7. Common Issues and How to Avoid Them
App Compatibility Problems
- Check developer websites for M4/macOS support
- Avoid outdated drivers or kernel extensions
License Limits
- Deactivate licenses on your M1 Mac before migration
- Especially important for Adobe, JetBrains, and audio plugins
iCloud Sync Conflicts
- Let migration finish fully before re-enabling heavy sync workloads
8. When to Keep the M1 Mac Around
Consider keeping your M1 Mac temporarily if:
- You rely on legacy software
- You need a fallback during the transition
- You plan to repurpose it as a test or backup machine
Once confident, you can:
- Wipe it and sell
- Trade it in
- Convert it into a secondary or family Mac
Conclusion
Migrating from an M1 Mac to an M4 Mac is a smooth, low-risk process thanks to Apple Silicon continuity and macOS migration tools. With proper preparation and a short post-migration check, you’ll gain immediate performance, efficiency, and longevity benefits—often with zero disruption to your workflow.
If you approach the upgrade methodically, your new M4 Mac will feel instantly familiar—just significantly faster.