1. Overview
The GameSir G8 Plus is a versatile mobile gaming controller designed to deliver a console-like experience across multiple platforms. It features advanced Hall Effect joysticks and triggers for precise control, wide compatibility with various devices, and customizable options to enhance your gameplay.
2. Setup
2.1 Package Contents
Before beginning, ensure all items are present in the package:
- GameSir G8 Plus Mobile Controller
- USB-C Cable
- Interchangeable Thumbstick Caps (various heights)
- Interchangeable Magnetic A, B, X, Y Buttons
- User Manual

Image: Contents of the GameSir G8 Plus package.
2.2 Device Compatibility
The GameSir G8 Plus is compatible with devices ranging from 4.7 to 8.4 inches (120-215mm) in length. It supports Nintendo Switch, iOS, Android, Tablets, and PC. The controller features a silicone-coated grip to securely hold your device and prevent slipping.
2.3 Connecting the Controller
The controller supports Bluetooth 5.3 for mobile devices. For PC, a 2.4G receiver (sold separately) or a wired connection can be used. To connect via Bluetooth:
- Ensure your mobile device's Bluetooth is enabled.
- Press the pairing button on the controller (usually located at the bottom).
- Select 'GameSir G8 Plus' from the list of available Bluetooth devices on your phone or tablet.
- The controller will indicate a successful connection.
2.4 Charging
The GameSir G8 Plus features internal 500mAh batteries on each side. It supports pass-through charging, allowing you to charge your device while gaming. Connect a USB-C cable to the Type-C port at the bottom of the controller.
3. Operating Instructions
3.1 Basic Controls
The controller features standard gaming buttons including A, B, X, Y face buttons, a D-pad, Hall Effect joysticks, and shoulder buttons (L1/R1, L2/R2). It also includes plus (+) and minus (-) buttons which function as select/start.
3.2 Switching Modes
The G8 Plus supports multiple operating modes for different platforms. To switch modes, press the corresponding key combination while the controller is in working status:

Image: Connection methods and compatible platforms for various modes.
- Android Mode: For Android 8.0 or later versions.
- DS4 Mode: For iOS devices.
- Switch Mode: For Nintendo Switch.
- G-Touch Mode: For GameSir App functionality.
3.3 Motion Sensing
A built-in 6-axis gyroscope enhances motion control, providing an immersive experience, especially for compatible Switch games and motion-sensitive gameplay.

Image: Motion control capabilities of the GameSir G8 Plus.
3.4 GameSir App
The GameSir app (Android exclusive) allows for real-time customization and boosts performance. It enables button mapping for games that do not natively support controllers and provides additional configuration options.
Video: An overview of the GameSir GameHub App, demonstrating its interface and features for managing games and controller settings.
4. Key Features
4.1 Hall Effect Joysticks and Triggers
The controller is equipped with Hall Effect joysticks, providing 360° precision control and eliminating stick drift. The optimized Hall Effect triggers offer smooth and quick response, ideal for various game genres, including FPS games.

Image: Detailed view of GameSir Hall Effect sticks, emphasizing durability and anti-drift.
The triggers can be toggled between Analog Trigger Mode (for racing games) and Hair Trigger Mode (for FPS games) to suit different gameplay styles.

Image: Illustration of togglable trigger modes for different game types.
4.2 Customizable Components
The G8 Plus allows for personalization with interchangeable magnetic A, B, X, Y buttons and three thumbstick caps of varying heights. This enables users to configure the controller to their preference.

Image: Customization options with interchangeable buttons and stick caps.
4.3 Ergonomics and Build Quality
Designed for comfort during extended gaming sessions, the controller features console-grade ergonomics with a firm and comfortable grip, suitable even for users with larger hands. The silicone-coated grip ensures secure handling.

Image: Ergonomic design for comfortable, console-grade gaming.
4.4 Advanced Features
- Magnetic Faceplates: Easily removable and interchangeable faceplates for aesthetic customization.
- Remapping on the Fly: Two additional back buttons (L4/R4) allow for instant button mapping.
- Anti-slip Textured Surface: Enhanced grip for secure handling.
- Broad Compatibility: Designed to accommodate devices with larger camera modules.




4.5 Broad Game Compatibility
The GameSir G8 Plus is compatible with a wide range of gaming platforms and services, including Xbox Game Pass, Switch, Steam, PC, Zenless Zone Zero, Cloud Gaming, and Moonlight. This ensures a versatile gaming experience across your preferred titles.
Video: Demonstrates the GameSir G8 Plus Bluetooth controller's features and compatibility with various games and platforms.
5. Maintenance
5.1 Cleaning
To clean the controller, use a soft, dry cloth. For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive materials, as these can damage the surface and internal components.
5.2 Storage
Store the controller in a cool, dry place away from direct sunlight and extreme temperatures. When not in use for extended periods, ensure the controller is fully charged before storage to maintain battery health.
6. Troubleshooting
6.1 Connectivity Issues
- Controller not pairing: Ensure the controller is in the correct mode for your device (Android, DS4, Switch, G-Touch). Check that Bluetooth is enabled on your device and the controller is in pairing mode.
- Intermittent connection: Ensure no other devices are interfering with the Bluetooth signal. Try moving closer to your device.
6.2 Button/Joystick Unresponsiveness
- Buttons not responding: Check if the controller's battery is low. Recharge the controller if necessary.
- Joystick drift: The Hall Effect joysticks are designed to prevent drift. If you experience issues, ensure the GameSir app (Android) is updated and check for any calibration options.
6.3 Device Not Fitting
The controller supports devices between 120-215mm (4.7-8.4 inches). If your device is within this range but doesn't fit, ensure it is properly aligned with the silicone grips. The design accommodates devices with larger camera modules.
7. Specifications
| Model Number | G8 Plus |
| Brand | GameSir |
| Connectivity | Bluetooth 5.3, 2.4G (receiver sold separately), Wired |
| Compatible Devices | Nintendo Switch, iOS, Android, Tablets, PC |
| Device Size Range | 4.7 to 8.4 inches (120-215mm) |
| Joysticks | Hall Effect |
| Triggers | Hall Effect (Analog/Hair Trigger modes) |
| Motion Control | Built-in 6-axis gyroscope |
| Battery | Internal 500mAh per side (total 1000mAh) |
| Pass-through Charging | Supported via USB-C |
| Item Weight | 1.37 pounds (approx. 621g) |
| Package Dimensions | 10.75 x 7.95 x 2.91 inches |
8. Warranty and Support
8.1 Warranty Information
GameSir provides a 12-month replacement service for this product. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any issues or inquiries regarding your GameSir G8 Plus controller, please contact customer support through the Amazon messaging system. Our support team aims to respond within 24 hours.