1. Introduction
This manual provides essential information for the safe and efficient use of your Ulefone Armor X12 Pro Rugged Smartphone. Please read it thoroughly before using your device.
2. What's in the Box
- Ulefone Armor X12 Pro Smartphone
- AC power charger (100~240V /US plug)
- Data cable (100cm)
- Lanyard
- Protective Film (Pre-installed)
- SIM pick
3. Product Overview and Key Features
The Ulefone Armor X12 Pro is a rugged smartphone designed for durability and performance in challenging environments. It features a compact design, an octa-core processor, and a robust battery.
3.1 Durability and Design
The Armor X12 Pro is built to withstand harsh conditions, meeting IP68, IP69K, and MIL-STD-810H standards. This means it is resistant to dust, drops, water, extreme temperatures, and humidity.

Image: The Ulefone Armor X12 Pro is shown in a rugged environment, highlighting its IP68, IP69K, and MIL-STD-810H certifications for water, dust, and drop resistance.
3.2 Performance
Equipped with a MediaTek Helio G36 octa-core chipset (up to 2.2GHz), 8GB of RAM (4GB physical + 4GB virtual), and 64GB of internal storage (expandable up to 256GB via microSD card), the device offers high-speed performance and efficient power usage.
Image: Visual representation of the MediaTek Helio G36 octa-core processor, 8GB RAM, and 64GB ROM with 256GB expandability.
3.3 Camera System
The Armor X12 Pro features a 13MP SONY IMX214 main camera and an 8MP selfie camera, offering various modes for creative photography.
Image: Depiction of the 13MP Sony main camera and 8MP selfie camera, highlighting their capabilities.
3.4 Battery Life
A 4860mAh battery provides extended usage, with up to 264 hours of standby time, 20 hours of talk time, and 8 hours of video playback.
Image: Illustration of the 4860mAh battery and its long-lasting power for various activities.
3.5 Operating System
The device runs on Android 14, offering enhanced security, privacy, and a personalized user experience.
Image: Screenshot of the Android 14 interface, emphasizing its secure, private, and personal features.
4. Setup
4.1 SIM and MicroSD Card Installation
The Armor X12 Pro supports a 3-card slot configuration for dual SIM cards and a microSD card for expanded storage (up to 256GB).
- Locate the SIM/microSD card tray on the side of the device.
- Use the provided SIM pick to eject the tray.
- Carefully place your SIM card(s) and/or microSD card into the designated slots.
- Insert the tray back into the device until it clicks into place.
4.2 Initial Power On
Press and hold the power button located on the side of the device 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 Network Compatibility
Important: Check compatibility with your carrier before purchase. This device is not compatible with AT&T, Cricket, or with CDMA Networks like Verizon, Sprint, and Boost Mobile.
5. Operating Instructions
5.1 Basic Navigation
Navigate the Android 14 interface using touch gestures: tap to select, swipe to scroll, pinch to zoom. The 5.45-inch full screen is designed for comfortable one-handed use.
5.2 Custom Key
The device features a customizable physical key. You can program this key for quick access to specific functions or applications, such as the camera, flashlight, or a frequently used app. Refer to the device settings for customization options.
Image: Illustration of the custom key on the side of the device, alongside face unlock and the 3-card slot.
5.3 Face Unlock
For convenient and secure access, set up Face Unlock in the security settings. This allows you to unlock your device using facial recognition.
5.4 NFC Functionality
The NFC (Near Field Communication) feature allows for contactless payments, quick data transfer, and other convenient interactions. Ensure NFC is enabled in settings for use.
Image: The device is shown using NFC for payment and displaying navigation features like GPS, Glonass, Galileo, and Beidou.
5.5 Camera Usage
Utilize the 13MP main camera and 8MP selfie camera for photos and videos. Explore various camera modes available in the camera application to enhance your shots.
5.6 Glove Mode
Activate Glove Mode in settings to improve touchscreen responsiveness when wearing gloves, making the device usable in cold or industrial environments.
5.7 Outdoor Tools
The Armor X12 Pro includes a suite of outdoor tools, such as a compass, height measure, gradient, flashlight, hanging painting tool, magnifier, alarm bell, plumb tool, protector, and noise test. These tools are accessible via a dedicated app or the custom key.
5.8 Memory Expansion
The device supports memory expansion up to 256GB via a microSD card. This allows for increased storage for apps, photos, videos, and other files.
Video: This video demonstrates how to expand the RAM memory on a similar rugged phone model. The process for the Ulefone Armor X12 Pro is comparable for memory expansion via microSD card.
6. Maintenance
6.1 Ruggedness Features
Your Ulefone Armor X12 Pro is designed to be highly durable. It is IP68/IP69K rated for water and dust resistance, and MIL-STD-810H certified for drop protection. Ensure all port covers are securely closed to maintain water and dust resistance.
Video: An official product video showcasing the Ulefone Armor X12 Pro Rugged Smartphone and its features, including durability.
6.2 Battery Care
To prolong battery life, avoid exposing the device to extreme temperatures. Use only the provided charger and cable. For optimal performance, avoid fully discharging the battery frequently.
7. Troubleshooting
7.1 Network or Signal Issues
If your Armor X12 Pro cannot connect to data, has no signal, or experiences other network-related issues, first verify your SIM card is correctly inserted and your carrier is supported. If problems persist, contact customer support.
7.2 General Performance Issues
If the phone feels slow or unresponsive, try restarting the device. Ensure you have sufficient free storage space and close unnecessary background applications. Regular software updates can also improve performance.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | Armor X12 Pro |
| Operating System | Android 14 |
| CPU Model | MediaTek Helio G36 (Octa-core, up to 2.2 GHz) |
| RAM | 8 GB (4GB physical + 4GB virtual) |
| Memory Storage Capacity | 64 GB |
| Expandable Storage | Up to 256 GB (microSD) |
| Screen Size | 5.45 Inches |
| Resolution | 720 x 1440 |
| Refresh Rate | 60 Hz |
| Main Camera | 13 MP SONY IMX214 |
| Front Camera | 8 MP |
| Battery Capacity | 4860 mAh |
| Phone Talk Time | 44 Hours |
| Phone Standby Time | 264 Hours |
| Water/Dust Resistance | IP68, IP69K |
| Drop Resistance | MIL-STD-810H |
| Connectivity | Bluetooth, Cellular, NFC |
| Navigation | GPS, Glonass, Galileo, Beidou |
| Audio Jack | 3.5 mm |
| Item Weight | 9.1 ounces (257 Grams) |
| Product Dimensions | 61.9 x 30.2 x 5.65 inches |
9. Warranty and Support
For any issues or support inquiries, please contact Ulefone customer service. If your Armor X12 Pro cannot connect to data, has no signal, or any other issues, please send an email to: amazon@ulefone.com.
Ulefone is committed to providing high-quality products and support. Please refer to your purchase documentation for specific warranty details.





