S1 STC-9909 is a 9-inch Android smart car stereo designed for car infotainment upgrades, wireless phone connection, navigation, rear camera display, and in-car audio enhancement. With a 9-inch IPS HD screen, wireless CarPlay, Android phone connection, dual-band WiFi, Bluetooth 5.0, GPS dual-mode navigation, AHD backup camera support, 32-band EQ, RCA 4.1CH output, and 7388 power amplifier, it provides a complete smart cockpit upgrade solution for daily driving and aftermarket installation.
The product supports multiple memory configurations including 1.5GB+32GB, 2GB+32GB, and 2GB+64GB, making it suitable for different market positioning and project requirements.


| Item | Specification |
| Model | S1 STC-9909 |
| Product Type | 9 Inch Smart Car Stereo |
| System | Android |
| Processor | Allwinner 100 Quad-Core |
| CPU Frequency | 1.5GHz |
| Memory Options | 1.5GB+32GB, 2GB+32GB, 2GB+64GB |
| Screen Size | 9 Inch |
| Screen Type | IPS HD Screen |
| Resolution | 1280×720 |
| WiFi | 2.4GHz + 5GHz Dual-Band WiFi |
| Bluetooth | Bluetooth 5.0 |
| Navigation | GPS+BD / GPS+GLONASS |
| Phone Connection | Wireless CarPlay / Android Phone Connection |
| Rear Camera | 1080P / 720P AHD Backup Camera Support |
| Remote Tracking | Supported Through Third-Party Backend Service |
| Audio Output | RCA 4.1CH Output |
| Audio Channels | FL / FR / RL / RR / SUB |
| EQ | 32-Band EQ |
| Power Amplifier | 7388 |
| FM Radio | Supported |
| Video Output | USB to HDMI / CVBS With Optional Output Box |
S1 STC-9909 features a 9-inch IPS HD screen with 1280×720 resolution, delivering clear visuals for navigation, music, video, phone connection, and rear camera display. The 2.5D tempered glass and multi-touch design provide a smoother operation experience and a more modern dashboard appearance.
The system supports wireless CarPlay and Android phone interconnection, allowing drivers to access maps, music, calls, messages, and voice control directly from the car stereo screen. It reduces cable clutter and makes daily driving more convenient.
With 2.4GHz and 5GHz dual-band WiFi, the device offers faster and more stable wireless connectivity for online navigation, music streaming, app use, and software updates. Bluetooth 5.0 supports hands-free calls, Bluetooth music, and stable mobile connection during driving.
S1 STC-9909 supports GPS+BD or GPS+GLONASS dual-mode positioning, helping improve route guidance stability and positioning accuracy. It supports navigation, real-time driving route use, and optional remote vehicle tracking through third-party backend service.
The product supports 1080P and 720P AHD rear camera input, providing a clearer reverse image for safer parking. It helps drivers see the rear area more easily in parking lots, narrow roads, and low-light reversing scenarios.
S1 STC-9909 supports RCA 4.1CH output including FL, FR, RL, RR, and SUB. With a 7388 power amplifier and 32-band EQ, users can adjust the sound field and create a richer in-car audio experience.


The device supports mobile remote route viewing through third-party backend service. This function is useful for users who need driving route records, vehicle location checking, or basic management of vehicle status.
S1 STC-9909 supports USB to HDMI or CVBS video output, but an extra video output box is required. This function is suitable for projects that need expanded display output, external monitor connection, or customized installation scenarios. :
Built-in FM radio provides convenient access to local radio stations, traffic updates, music programs, and daily entertainment while driving.




