1. Introduction
This manual provides essential information for the safe and efficient operation of your Ulefone Power Armor 18T Ultra 5G Rugged Phone. Please read it thoroughly before using your device to ensure optimal performance and longevity. Keep this manual for future reference.
2. Product Overview
The Ulefone Power Armor 18T Ultra is a robust 5G smartphone designed for demanding environments, featuring advanced thermal imaging, a high-resolution camera system, and a durable build.
Key Features:
- Thermal Imaging Camera: Integrated FLIR Lepton 3.5 for advanced thermal detection.
- High-Resolution Photography: 108MP main camera, 5MP microlens with 60x super magnification, and a 32MP front camera.
- Powerful Performance: MediaTek Dimensity 7050 5G processor, 24GB RAM (including virtual RAM), and 512GB internal storage, expandable up to 2TB.
- Long-Lasting Battery: 9600mAh battery with 66W flash charging, 15W wireless charging, and reverse charging capabilities.
- Durable Display: 6.58-inch FHD+ display with 120Hz refresh rate and Corning Gorilla Glass 5 protection.
- Extreme Durability: IP68/IP69K water and dust resistance, and MIL-STD-810G certified for drop protection.
- Versatile Connectivity: Global 5G network support, Dual SIM Dual Standby, Wi-Fi 6, L1+L5 Dual Band GPS, and NFC.
- Expandable Functionality: uSmart Expansion Connector for professional accessories like endoscopes and microscopes.
- Latest Android OS: Runs on Android 14 for enhanced features and security.

Figure 1: Ulefone Power Armor 18T Ultra 5G Rugged Phone
3. What's in the Box
Verify that all items are present upon unboxing:
- Ulefone Power Armor 18T Ultra 5G Rugged Phone
- AC Power Charger (100~240V / US plug)
- Data Cable (100cm)
- SIM Pick
- Lanyard
- Screen Protector (pre-applied or in box)
4. Setup
4.1 SIM Card Installation
- Locate the SIM card tray on the side of the device.
- Insert the provided SIM pick into the small hole next to the tray and press gently until the tray ejects.
- Place your Nano-SIM cards (up to two) and/or a microSD card (for storage expansion) into the tray, ensuring correct orientation.
- Carefully reinsert the tray into the phone until it clicks into place.
4.2 Initial Power On
- Press and hold the Power button (usually on the right side) until the Ulefone logo appears.
- Follow the on-screen prompts to complete the initial setup, including language selection, Wi-Fi connection, and Google account setup.
4.3 Screen Protector Application
If a screen protector is not pre-applied, carefully follow the instructions provided with the screen protector to install it, ensuring the screen is clean and free of dust.
5. Operating Instructions
5.1 Basic Navigation
- Power Button: Press and hold to power on/off or restart. Short press to lock/unlock the screen.
- Volume Buttons: Adjust media volume, ringtone volume, and alarm volume.
- Custom Key: A programmable button for quick access to specific functions or apps. Configure it in Settings.
- Fingerprint Sensor: Located on the side, use it for secure unlocking and authentication. Register your fingerprints in Settings > Security.
- Face Unlock: Set up face recognition for convenient unlocking in Settings > Security.

Figure 2: Fingerprint Sensor and Face Unlock
5.2 Camera Usage
The Power Armor 18T Ultra features a versatile camera system:
- 108MP Main Camera: For high-detail photos. Access various modes like Portrait, Panorama, and Pro mode.
- Thermal Imaging Camera (FLIR Lepton 3.5): Use the dedicated thermal app to visualize heat signatures. This is useful for identifying heat leaks, electrical faults, or observing wildlife in low light.
- 5MP Microlens Camera: Offers 60x super magnification for capturing intricate details of small objects.
- 32MP Front Camera: For high-quality selfies and video calls.
- Underwater Camera Mode: Activate this mode before submerging the phone to ensure proper touch response and button functionality for underwater photography.

Figure 3: Thermal Imaging Camera Details

Figure 4: 108MP Main Camera
5.3 Connectivity
- 5G Network: Ensure your SIM card supports 5G and your area has 5G coverage for the fastest mobile data speeds.
- Wi-Fi 6: Connect to Wi-Fi 6 compatible networks for faster and more stable wireless internet.
- GPS (L1+L5 Dual Band): Provides enhanced positioning accuracy for navigation and location-based services.
- NFC: Use Near Field Communication for contactless payments and quick data sharing with compatible devices.

Figure 5: Advanced Connectivity and Underwater Camera
5.4 Charging
- 66W Flash Charge: Use the provided charger and cable for rapid charging.
- 15W Wireless Charging: Place the phone on a compatible Qi wireless charger.
- Reverse Charging: The phone can act as a power bank to charge other devices using a compatible cable.

Figure 6: Charging Features
5.5 uSmart Expansion Connector
The uSmart Expansion Connector allows you to attach specialized accessories:
- Endoscope: For inspecting hard-to-reach areas.
- Microscope: For magnified viewing of small objects.
- Night Vision Camera: Enhances visibility in extremely low light conditions.
Note: Expansion devices require additional purchases.

Figure 7: uSmart Expansion Connector in Use
5.6 Rugged Features
The Power Armor 18T Ultra is built to withstand harsh conditions:
- Waterproof (IP68/IP69K): Can be submerged in water up to 1.5 meters for 30 minutes. Ensure all ports are securely sealed before exposure to water.
- Dustproof (IP68/IP69K): Completely protected against dust ingress.
- Drop-Proof (MIL-STD-810G): Designed to withstand drops from up to 1.5 meters onto concrete.

Figure 8: Ruggedness Features
5.7 Other Features
- Gloves Mode: Enable this feature in settings to improve touch sensitivity when wearing gloves.
- Headset-Free FM Radio: Enjoy FM radio without needing to connect headphones as an antenna.
- Practical Toolkit: Access a suite of useful tools for outdoor and professional use.
6. Maintenance
6.1 Cleaning
To clean your device, wipe it with a soft, damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the phone's rugged exterior or screen.
6.2 Battery Care
To prolong battery life, avoid exposing the phone to extreme temperatures. For optimal performance, use the original Ulefone charger and cable. Avoid completely draining the battery frequently.
7. Troubleshooting
7.1 No Data or Signal Issues
If your Ulefone Power Armor 18T Ultra cannot connect to data or has no signal:
- Ensure your SIM card is correctly inserted and activated.
- Check your network settings to confirm the correct Access Point Name (APN) is configured for your carrier.
- Verify that your carrier supports the phone's network bands. Note: This device is not compatible with AT&T or Cricket.
- Restart your phone.
- If issues persist, contact your mobile carrier for assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | Ulefone Power Armor 18T Ultra |
| Operating System | Android 14 |
| Processor | MediaTek Dimensity 7050 5G (2.6 GHz) |
| RAM | 24 GB (including virtual RAM) |
| Internal Storage | 512 GB (expandable up to 2 TB via TF card) |
| Display | 6.58 Inches FHD+ (2408 x 1080), 120 Hz Refresh Rate, Corning Gorilla Glass 5 |
| Main Camera | 108 MP |
| Front Camera | 32 MP |
| Thermal Camera | FLIR Lepton 3.5 |
| Battery Capacity | 9600 mAh |
| Charging | 66W Flash Charge, 15W Wireless Charging, Reverse Charging |
| Ruggedness | IP68, IP69K, MIL-STD-810G |
| Connectivity | 5G, Wi-Fi 6, NFC, GPS (L1+L5 Dual Band) |
| Dimensions | 6.9 x 3.28 x 0.74 inches |
| Item Weight | 1.79 pounds |
9. Safety Information
Please observe the following safety guidelines:
- Do not attempt to disassemble or repair the device yourself. Unauthorized repairs may void your warranty and cause damage.
- Use only Ulefone-approved accessories and chargers.
- Avoid exposing the device to extreme temperatures, direct sunlight, or fire.
- Keep the device away from strong magnetic fields.
- Dispose of the device and its battery responsibly according to local regulations.
10. Warranty and Support
Your Ulefone Power Armor 18T Ultra comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included in your product packaging or visit the official Ulefone website.
For technical support or inquiries, please contact Ulefone customer service. If you experience issues such as data connectivity problems or no signal, and have verified carrier compatibility (not compatible with AT&T or Cricket), please email amazon@ulefone.com for assistance.







