1. Product Overview
The Spigen Tough Armor case is designed to provide robust protection for your Samsung Galaxy S21+ 5G. It features a dual-layer construction of Thermoplastic Polyurethane (TPU) and Polycarbonate (PC), integrated Air Cushion Technology for impact absorption, and a reinforced kickstand for hands-free viewing.

Image 1.1: Spigen Tough Armor Case (Black) for Samsung Galaxy S21+ 5G.
2. Compatibility
This case is specifically designed for the Samsung Galaxy S21+ 5G (6.7-inch screen). It is not compatible with the Samsung Galaxy S21 (6.2-inch) or the Samsung Galaxy S21 Ultra (6.8-inch).

Image 2.1: Compatibility chart indicating the case is only compatible with the 6.7-inch Galaxy S21+ 5G.
3. Setup and Installation
Follow these steps to properly install the Spigen Tough Armor case on your Samsung Galaxy S21+ 5G:
- Prepare your device: Ensure your Samsung Galaxy S21+ 5G is clean and free of dust or debris.
- Separate the case components: The Tough Armor case consists of two main parts: a soft TPU inner layer and a rigid PC outer shell. Gently separate these two layers.
- Install the inner layer: First, carefully place your Samsung Galaxy S21+ 5G into the flexible TPU inner layer, ensuring all edges and corners are properly seated.
- Attach the outer shell: Once the phone is securely in the TPU layer, align the rigid PC outer shell over the TPU layer and snap it into place. Ensure all clips engage correctly for a secure fit.

Image 3.1: Illustration of the dual-layer design and how the phone fits into the case.
4. Operating Features
4.1. Kickstand Functionality
The integrated kickstand allows for convenient hands-free viewing of media. To use the kickstand, locate the small tab on the back of the case and gently pull it out until it locks into position. To retract, push the kickstand back into its recess until it sits flush with the case.

Image 4.1: The case with its kickstand extended, demonstrating hands-free viewing.
4.2. Wireless Charging Compatibility
The Spigen Tough Armor case is designed to be compatible with wireless charging. You do not need to remove the case to charge your Samsung Galaxy S21+ 5G wirelessly.
5. Maintenance and Care
To ensure the longevity and appearance of your Spigen Tough Armor case, follow these maintenance guidelines:
- Cleaning: Use a soft, damp cloth to wipe down the case. For stubborn dirt, a mild soap solution can be used. Avoid harsh chemicals or abrasive cleaners, as these may damage the material.
- Storage: When not in use, store the case in a cool, dry place away from direct sunlight to prevent material degradation.
- Inspection: Periodically inspect the case for any signs of wear or damage, especially around the corners and edges, to ensure continued protection.
6. Troubleshooting
6.1. Case Does Not Fit Properly
Ensure you have the correct model of the Spigen Tough Armor case for your device. This specific case is designed for the Samsung Galaxy S21+ 5G (6.7-inch). Refer to the compatibility section (Section 2) to verify your phone model.
6.2. Reduced Button Responsiveness
If buttons feel less responsive, ensure the case is installed correctly and fully seated around the phone. Remove and re-install the case, making sure the button covers align perfectly with your phone's buttons.
6.3. Kickstand Issues
If the kickstand does not extend or retract smoothly, check for any debris or obstructions in the mechanism. Avoid forcing the kickstand, as this may cause damage.

Image 6.1: Visual representation of Air Cushion Technology in the case corners, designed to absorb shock from impacts.

Image 6.2: Detailed view of precise cutouts for ports and responsive button covers.

Image 6.3: Raised bezels around the screen and camera area for enhanced protection against flat surface contact.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Spigen |
| Model Name | Tough Armor |
| Model Number | ACS02390 |
| Compatible Phone Models | Samsung Galaxy S21+ 5G |
| Material | Polycarbonate, Thermoplastic Polyurethane |
| Color | Black |
| Product Features | Air-cushion technology, Hybrid Material, Kickstand, Shock-Absorbent, Wireless Charging Compatible |
| Item Dimensions (L x W x H) | 16.8 x 8.2 x 1.2 Centimeters |
| Item Weight | 53 Grams |
| Box Contents | Basic case |
8. Warranty and Support
This Spigen product comes with a 1 Year Warranty Against Manufacturing Defects Only.
For warranty claims or technical support, please contact Spigen customer service:
- Email: spigen.support@spigen.com
Please retain your proof of purchase for warranty validation.
