1. Introduction
Welcome to the user manual for your DOOGEE S118 4G Rugged Smartphone. This guide provides essential information to help you set up, operate, and maintain your device. The DOOGEE S118 is designed for durability and high performance, featuring a robust build, powerful battery, and advanced camera system.
2. Product Overview
The DOOGEE S118 is engineered for demanding environments, offering a blend of ruggedness and cutting-edge technology. Key features include:
- Massive Storage & RAM: Up to 20GB RAM (12GB physical + 8GB expansion) and 512GB ROM, expandable up to 2TB via TF card.
- Long-lasting Battery: 10800mAh battery with 33W fast charging and OTG reverse charging support.
- Advanced Camera System: 50MP AI main camera, 12MP night vision camera, 8MP wide-angle & macro camera, and 32MP front camera.
- Vibrant Display: 6.58-inch FHD+ 120Hz DynamicSwitch display (2408x1080P).
- Powerful Processor: MediaTek G99 Octa-core processor (6nm) for smooth performance.
- Operating System: Runs on the latest Android 14 OS.
- Rugged Design: Built to withstand harsh conditions.

Figure 2.1: Front and back view of the DOOGEE S118 Rugged Smartphone, highlighting its robust design and camera module.

Figure 2.2: Visual representation of the DOOGEE S118's core features: 512GB massive storage, 6.58" FHD+ 120Hz IPS display, 10800mAh large battery, Flagship Helio G99 Octa-core Processor, and high-quality dual-speaker performance.
Video 2.1: An official overview of the DOOGEE S118 4G Rugged Smartphone, showcasing its design and key functionalities.
3. Setup
3.1. SIM Card and TF Card Installation
The DOOGEE S118 supports dual 4G SIM cards and a TF card for expanded storage.
- Locate the SIM/TF card tray on the side of the device.
- Use the provided SIM ejector tool to open the tray.
- Carefully place your Nano-SIM cards and/or TF card into the designated slots. Ensure correct orientation.
- Gently push the tray back into the device until it is flush.
3.2. Initial Power On and Setup
To power on your device for the first time:
- Press and hold the Power button (located on the side) until the DOOGEE logo appears.
- Follow the on-screen prompts to select your language, connect to a Wi-Fi network, and set up your Google account.
- Configure security settings, including fingerprint recognition.
4. Operating Instructions
4.1. Navigation and User Interface
The DOOGEE S118 runs on Android 14, offering an intuitive touchscreen interface. Navigate by tapping, swiping, and pinching. The device supports larger font sizes for enhanced readability.
4.2. Customizable Side Button
The smartphone features a customizable side button. You can assign various functions to this button, such as quick access to the flashlight, camera, or other applications, through the device settings.
4.3. Fingerprint Recognition
The side-mounted fingerprint sensor provides secure and quick unlocking. To set up:
- Go to Settings > Security & privacy > Device unlock.
- Select Fingerprint and follow the instructions to register your fingerprint.
5. Camera Features
The DOOGEE S118 is equipped with a versatile camera system for various photography needs.
- 50MP AI Main Camera: Captures high-resolution images with enhanced detail and clarity.
- 12MP Night Vision Camera: Designed for clear photography in low-light or complete darkness.
- 8MP Wide-angle & Macro Camera: Allows for expansive landscape shots and detailed close-ups.
- 32MP Front Camera: Delivers clear and vibrant selfies and video calls.

Figure 5.1: Detailed breakdown of the DOOGEE S118's multi-camera system and their respective specifications.

Figure 5.2: An example image demonstrating the clarity and quality of the 32MP front camera.
6. Battery Management
The DOOGEE S118 features a large 10800mAh battery designed for extended use.
6.1. Charging
Use the provided 33W fast charger for optimal charging speed. The device supports rapid charging, significantly reducing downtime.

Figure 6.1: Visual representation of the 10800mAh battery capacity and estimated usage times for standby, calling, music playback, video watching, and web browsing.

Figure 6.2: Illustration of the 33W fast charging feature, indicating quick charge times.
6.2. OTG Reverse Charging
The DOOGEE S118 can act as a power bank for other devices via OTG (On-The-Go) reverse charging. Connect compatible devices using an OTG cable to charge them directly from your smartphone.
7. Connectivity
The DOOGEE S118 offers comprehensive connectivity options:
- Dual 4G Global Network: Supports GSM, WCDMA, and LTE for broad network compatibility.
- Wi-Fi: Connect to wireless networks for internet access.
- Bluetooth: Pair with wireless headphones, speakers, and other Bluetooth-enabled devices.
- NFC: For contactless payments and quick data sharing.
- GPS: Integrated GPS for accurate navigation and location services.
8. Digital Toolkit
The DOOGEE S118 includes a suite of useful tools for various outdoor and professional applications:
- Compass
- Sound Meter
- Gradienter
- Height Measure
- Magnifier
- Protractor
- Plumb Bob
- Alarm Bell
- Mirror
- Pedometer
- Torch
9. Maintenance
To ensure the longevity and optimal performance of your DOOGEE S118:
- Cleaning: Wipe the device with a soft, damp cloth. Avoid harsh chemicals or abrasive materials.
- Ruggedness: While designed to be rugged (IP68/IP69K/MIL-STD-810H certified), avoid intentional drops or extreme impacts. Ensure all port covers are securely closed when exposed to water or dust.
- Software Updates: Regularly check for and install system updates to benefit from the latest features, security patches, and performance improvements.
- Storage Management: Periodically clear unnecessary files and apps to maintain optimal performance. Utilize the 2TB expansion slot for large media files.
10. Troubleshooting
This section addresses common issues you might encounter with your DOOGEE S118.
| Problem | Possible Solution |
|---|---|
| Device won't turn on | Ensure the battery is charged. Connect to the charger for at least 15 minutes, then try powering on again. If unresponsive, perform a forced restart by holding the Power button for 10-15 seconds. |
| Poor network signal | Check SIM card insertion. Move to an area with better network coverage. Restart the device. Verify carrier compatibility (Note: Not compatible with AT&T, Cricket, or CDMA carriers like Straight Talk, U.S. Cellular, Boost, Sprint, Verizon, Net 10). |
| Battery drains quickly | Close background apps. Reduce screen brightness. Disable unused features like Wi-Fi, Bluetooth, GPS when not needed. Check for app updates. |
| Apps crashing or freezing | Clear app cache/data (Settings > Apps > [App Name] > Storage). Update the app to the latest version. Restart the device. |
| Fingerprint sensor not working | Ensure your finger is clean and dry. Re-register your fingerprint in settings. |
If issues persist, please contact customer support.
11. Specifications
Detailed technical specifications for the DOOGEE S118:
| Feature | Specification |
|---|---|
| Model Name | DOOGEE S118 |
| Operating System | Android 14 |
| RAM | 8 GB (expandable to 20GB) |
| Memory Storage Capacity | 512 GB (expandable to 2TB) |
| Screen Size | 6.58 Inches |
| Resolution | 2408 x 1080 (FHD+) |
| Refresh Rate | 120 Hz |
| Battery Capacity | 10800 Milliamp Hours |
| Fast Charging | 33W |
| Rear Camera | 50MP Main, 12MP Night Vision, 8MP Wide-angle & Macro |
| Front Camera | 32MP |
| Product Dimensions | 7.03 x 3.27 x 0.7 inches |
| Item Weight | 13.2 ounces (374 Grams) |
| Connectivity | Cellular (4G), NFC, Bluetooth, Wi-Fi, USB |
| Special Features | Dual SIM, GPS, OTG Reverse Charging |
| Manufacturer | DOOGEE |
12. Warranty and Support
Your DOOGEE S118 Rugged Smartphone comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use.
For technical support, warranty claims, or any questions regarding your device, please contact the seller or DOOGEE customer service through their official channels. Please have your purchase receipt and product model number ready when contacting support.
For more information, visit the official DOOGEE website or refer to the contact information provided with your purchase.