1. Introduction
This manual provides essential information for setting up, operating, maintaining, and troubleshooting your realme P3x smartphone. Please read this guide thoroughly to ensure proper use and to maximize the device's capabilities.
2. What's in the Box
Upon opening the realme P3x package, verify that all standard components are present:
- realme P3x Smartphone
- USB Cable
- Power Adapter (45W SUPERVOOC)
- SIM Tray Ejector Tool
- Protective Phone Case
- Quick Guide / User Manual
- Screen Protector (pre-applied)
Video: Unboxing the realme P3x smartphone, showing all included accessories and the initial device presentation.
3. Device Overview
Familiarize yourself with the physical components of your realme P3x smartphone.

Image: Front view of the realme P3x smartphone.

Image: Back view of the realme P3x smartphone.

Image: Side view of the realme P3x smartphone, showing physical buttons.

Image: Top and bottom view of the realme P3x smartphone, showing ports and speakers.
4. Setup
4.1. Inserting SIM Card and Memory Card
The realme P3x supports dual SIM cards. Follow these steps to insert your SIM card(s) and an optional microSD card:
- Locate the SIM card tray on the side of the device.
- Insert the SIM tray ejector tool into the small hole next to the tray and press gently until the tray pops out.
- Place your Nano-SIM card(s) into the designated slots on the tray. Ensure the gold contacts face downwards. If using a microSD card, place it in the dedicated slot.
- Carefully reinsert the tray into the device until it clicks into place.

Image: SIM card tray with slots for dual SIM and memory card.
4.2. Initial Power On and Setup Wizard
To power on your device for the first time:
- Press and hold the Power button (located on the right side) until the realme logo appears on the screen.
- Follow the on-screen instructions to complete the initial setup, which includes selecting your language, connecting to Wi-Fi, setting up your Google account, and configuring security features like fingerprint recognition or face unlock.
5. Operating Your Device
5.1. Display Features
The realme P3x features a 6.72-inch Full HD+ IPS LCD display with a 120Hz refresh rate for smooth visuals and a peak brightness of 950 nits for clear viewing in various lighting conditions.
5.2. Camera Usage
The device is equipped with a 50MP AI dual-camera setup on the rear, including a 2MP depth sensor for portrait photography. The front camera is 8MP, suitable for selfies and video calls.
5.3. Battery and Charging
The realme P3x is powered by a 6000mAh battery and supports 45W SUPERVOOC fast charging. Use the provided power adapter and USB cable for optimal charging performance.
5.4. Security Features
Unlock your device securely using the side-mounted fingerprint sensor or face unlock feature. These biometric options provide convenient and quick access while protecting your data.
5.5. Connectivity
The realme P3x supports 5G, 4G LTE, Wi-Fi 6, Bluetooth 5.3, NFC, and GPS for comprehensive connectivity options.
Video: Overview of key features and specifications of the realme P3x smartphone.
6. Maintenance
6.1. Cleaning Your Device
To clean your realme P3x, use a soft, lint-free cloth. Avoid using harsh chemicals or abrasive materials that could damage the screen or finish. For stubborn smudges, slightly dampen the cloth with water or a screen cleaner designed for electronics.
6.2. Battery Care
To prolong battery life, avoid exposing the device to extreme temperatures. Use only the original charger and cable. It is recommended to keep the battery charge between 20% and 80% for optimal long-term health.
6.3. Software Updates
Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Navigate to Settings > About device > realme UI version to check for updates.
7. Troubleshooting
This section addresses common issues you might encounter with your realme P3x.
7.1. Device Not Powering On
- Ensure the battery is charged. Connect the device to the charger for at least 10 minutes before attempting to power it on.
- Press and hold the Power button for 10-15 seconds to perform a forced restart.
7.2. Network Connectivity Issues
- Check if the SIM card is correctly inserted and activated.
- Restart the device.
- Go to Settings > Mobile network and ensure mobile data is enabled and the correct network type is selected.
- Try resetting network settings: Settings > System settings > Backup and reset > Reset phone > Reset network settings.
7.3. Camera Not Working
- Restart the camera application.
- Clear the camera app's cache and data: Settings > Apps > App management > Camera > Storage usage > Clear data and Clear cache.
- Ensure no physical obstruction is blocking the camera lens.
7.4. Device Freezing or Lagging
- Close background applications.
- Clear cache from apps and system.
- Ensure sufficient storage space is available.
- If issues persist, consider a factory reset (Settings > System settings > Backup and reset > Reset phone > Erase all data). Note: This will erase all data on your device. Back up important information before proceeding.
8. Specifications
Detailed technical specifications for the realme P3x smartphone:
| Brand | realme |
| Model Name | P3x (RMX3944) |
| Colour | Blue |
| RAM Memory Installed Size | 8 GB |
| Memory Storage Capacity | 128 GB |
| CPU Model | Others (MediaTek Dimensity 6400 5G Chipset) |
| CPU Speed | 2.5 GHz |
| Biometric Security Feature | Fingerprint Recognition |
| Number of Rear Facing Cameras | 2 (50MP AI dual-camera setup) |
| Battery Capacity | 6000 Milliamp Hours |
| Battery Description | Lithium-Ion |
| Item Dimensions | 16.1 x 7.4 x 0.8 Centimeters |
| Screen Size | 6.72 Inches |
| Refresh Rate | 120 Hz |
| Operating System | Android 15 (realme UI 6.0) |
| Water & Dust Resistance | IP69 |
9. Warranty and Support
9.1. Warranty Information
The realme P3x comes with a standard manufacturer's warranty. Please refer to the warranty card included in your product packaging for specific terms, conditions, and duration. Keep your proof of purchase for warranty claims.
9.2. Customer Support
For further assistance, technical support, or service inquiries, please visit the official realme support website or contact realme customer service. Contact details can typically be found on the realme website or in the Quick Guide.
You can also visit the realme Store on Amazon for additional product information and resources.