1. Product Overview
The Spigen EZ Fit Tempered Glass Screen Protector provides robust protection for your Samsung Galaxy S21 screen. Engineered with 9H hardness, it offers superior resistance against scratches and impacts. The innovative EZ Fit installation tray ensures a precise, bubble-free application every time, making the process simple and efficient.
2. Compatibility
This screen protector is specifically designed for the Samsung Galaxy S21 (6.2-inch model). It is not compatible with the Samsung Galaxy S21 Ultra or Samsung Galaxy S21+.

Image: Compatibility chart indicating the Spigen EZ Fit screen protector is only compatible with the 6.2-inch Samsung Galaxy S21.
The screen protector is also designed to be compatible with all Spigen cases, ensuring full device protection without interference.

Image: Illustration of the screen protector's compatibility with various Spigen cases.
3. Package Contents
Your Spigen EZ Fit Tempered Glass Screen Protector package typically includes:
- 2x Spigen Tempered Glass Screen Protectors
- 1x EZ Fit Installation Tray
- 1x Cleaning Kit (including wet wipes, microfiber cloth, and dust removal stickers)
- 1x Squeegee (for smoothing)
4. Installation Guide
Follow these steps for a flawless, bubble-free installation:
- Prepare Your Workspace: Choose a clean, dust-free environment, such as a bathroom after a hot shower, to minimize airborne dust.
- Remove Existing Protectors: Important: Ensure you remove any pre-installed plastic film or screen protector from your Samsung Galaxy S21. Some phones come with a factory-installed film that needs to be peeled off.
- Clean the Screen: Use the provided wet wipe to thoroughly clean your phone's screen. Follow with the microfiber cloth to dry and polish. Use the dust removal sticker to pick up any remaining dust particles. Ensure the screen is perfectly clean and dry.
- Position the EZ Fit Tray: Place your Samsung Galaxy S21 into the EZ Fit installation tray. Ensure it sits snugly and correctly.
- Apply the Screen Protector: Peel off the backing film from the tempered glass screen protector. Carefully align the screen protector with the top edge of the EZ Fit tray and gently lower it onto your phone's screen. The tray will guide it into the correct position.
- Secure Adhesion: Once the protector is in place, firmly rub your finger or the provided squeegee along the center of the screen protector for approximately 30 seconds to ensure proper adhesion.
- Remove Tray and Top Film: Carefully peel off the top film from the screen protector (if present) and then unclip the EZ Fit tray from your phone.
- Final Touches: Use the microfiber cloth to gently wipe down the newly installed screen protector, removing any smudges.

Image: Exploded view of the EZ Fit installation system, highlighting the tray, alignment film, and tempered glass.
Fingerprint Sensor Calibration
After installing the screen protector, it is highly recommended to re-register your fingerprints on your Samsung Galaxy S21. This ensures optimal performance of the in-display fingerprint scanner. Go to your phone's settings, navigate to Biometrics and security, then Fingerprints, and follow the instructions to add new fingerprints.

Image: Visual representation of Spigen's fingerprint compatible screen protector versus a non-compatible one.
5. Operating Instructions
Once installed, the Spigen EZ Fit Tempered Glass Screen Protector operates seamlessly with your Samsung Galaxy S21. It provides a clear, responsive touch surface while protecting against daily wear and tear. No special operating procedures are required beyond normal phone usage.

Image: The screen protector offers crystal clarity with 9H hardness.

Image: The screen protector keeps the screen protected throughout daily use.
6. Care and Maintenance
To maintain the clarity and effectiveness of your screen protector:
- Wipe the screen regularly with a soft, lint-free cloth (like the one provided in the kit).
- For stubborn smudges, lightly dampen the cloth with water or a screen-cleaning solution. Avoid harsh chemicals.
- Do not use abrasive materials or excessive force when cleaning, as this may damage the oleophobic coating.
7. Troubleshooting
Fingerprint Scanner Issues
If you experience difficulties with the fingerprint scanner after installation:
- Re-register Fingerprints: This is the most common solution. Delete all existing fingerprints and re-register them with the screen protector applied. Ensure your finger is clean and dry during registration.
- Increase Touch Sensitivity: Some phone models allow you to increase touch sensitivity for screen protectors. Check your phone's display settings for this option.
- Ensure Proper Adhesion: Make sure the screen protector is fully adhered to the screen, especially around the fingerprint sensor area. Press firmly on that area.
- Remove Factory Film: Double-check that you removed any thin, pre-installed plastic film from your phone's screen before applying the Spigen protector. This is a common oversight that can affect sensor performance.
Bubbles After Installation
While the EZ Fit tray minimizes bubbles, some small ones might appear:
- Small Bubbles: Minor bubbles often disappear on their own within 24-48 hours.
- Large Bubbles/Dust: If a large bubble persists or is caused by a dust particle, gently lift the nearest edge of the screen protector with a dust removal sticker (or a piece of tape) to remove the dust, then re-apply. Be cautious to avoid damaging the adhesive.
- Squeegee Use: Use the provided squeegee to push bubbles towards the nearest edge.
8. Product Specifications
| Brand | Spigen |
| Model Number | AGL02550 |
| Compatible Devices | Samsung Galaxy S21 (6.2-inch) |
| Screen Size | 6.2 Inches |
| Special Features | 9H Surface Hardness, Scratch Resistant, EZ Fit Installation |
| Material | Tempered Glass |
| Quantity | 2 Pieces |
9. Warranty & Support
Spigen products are designed for quality and durability. For specific warranty information and customer support, please visit the official Spigen website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
You can find more information and contact details on the Spigen Brand Store on Amazon.