1. Product Overview
The Samsung Galaxy S25 is a 256GB unlocked Android smartphone featuring an AI Night Mode Camera, Snapdragon 8 Elite Fast Processor, ProScaler Display, and a 4000mAh battery. This manual provides essential information for setting up, operating, and maintaining your device.

Figure 1: Samsung Galaxy S25 in Icyblue.
2. What's in the Box
Your Samsung Galaxy S25 package includes the following items:
- Samsung Galaxy S25
- USB Cable
- SIM Tray Ejector
- Quick Start Guide

Figure 2: Contents of the Samsung Galaxy S25 box.
3. Setup
3.1. Powering On and Initial Setup
To power on your Samsung Galaxy S25, press and hold the Power/Side key until the Samsung logo appears. Follow the on-screen instructions to complete the initial setup, including language selection, Wi-Fi connection, and Google account login.
Video 1: This video demonstrates the boot-up process of the Samsung Galaxy S25 Ultra compared to an iPhone 15 Pro Max, showing the Samsung Galaxy S25 Ultra powering on and reaching the lock screen.
3.2. Inserting the SIM Card
Locate the SIM card tray on the side of your device. Use the provided SIM tray ejector tool to open the tray. Place your Nano-SIM card(s) into the tray with the gold contacts facing down. Carefully reinsert the tray into the phone.

Figure 3: The SIM tray ejector tool is used to access the SIM card slot for inserting your Nano-SIM card.
3.3. Transferring Data with Smart Switch
Easily move content and apps from your previous phone to your new Galaxy S25 using Smart Switch. This application supports wired and wireless transfers from Android devices (Android 4.3 or later) and iCloud transfers from iOS devices (iOS 5 or later).

Figure 4: The Smart Switch application displaying data transfer progress from an old phone to the new Galaxy S25.
4. Operating Your Device
4.1. AI Features for Enhanced Productivity
The Galaxy S25 integrates advanced AI features to streamline your daily tasks and provide intelligent assistance.
- Now Brief: Stay informed with daily select information from various apps, presented before you even realize you need it.
- Circle to Search with Google: Instantly search anything on your screen by circling an object (images, videos, or text) with your finger.
- Gemini Live: Speak freely and naturally to get real-time information. Use your camera or uploaded images to decode care tags on clothes or get answers to questions.

Figure 5: Now Brief provides personalized insights and information to start your day smarter.

Figure 6: Circle to Search with Google allows for instant on-screen searches by simply circling content.

Figure 7: Gemini Live provides real-time answers and assistance through natural language interaction and visual input.
4.2. Messaging with RCS
Send higher-resolution pictures and videos, join group chats, and react to texts across different operating systems using RCS Messaging. This feature enhances your communication experience.

Figure 8: RCS Messaging allows for richer communication with high-quality media sharing and interactive features.
4.3. Digital Wallet
Your Galaxy S25 includes a digital wallet for convenient payments and storing membership cards. Pay with a tap and keep all your essential cards in one secure app. For more information, visit Samsung Wallet FAQ.

Figure 9: The digital wallet feature on Galaxy S25 for secure payments and card storage.
4.4. External Microphone Setup
For enhanced audio recording, you can connect compatible external microphones to your Galaxy S25. Ensure the microphone is properly connected to the USB-C port.
Video 2: This video demonstrates the use of a Boya Mini 2 wireless microphone with the Samsung Galaxy S25 Ultra, showcasing external audio recording capabilities.
5. Camera Features
The Galaxy S25 is equipped with an advanced camera system designed to capture high-quality photos and videos in various conditions.
- Rear Camera: 50MP Wide-angle with 2x Optical Quality Zoom, 12MP Ultra Wide, 10MP Telephoto with 3x Optical Zoom.
- Front Camera: 12MP Selfie Camera.
- AI Camera with Audio Eraser: Capture vibrant videos in low light and minimize unwanted background noises.
- Advanced Portrait Features: Adjust skin tones and preserve natural textures for polished portraits.

Figure 10: Detailed camera specifications for the Samsung Galaxy S25, highlighting its multi-lens system.

Figure 11: The AI Camera's Audio Eraser feature helps reduce background noise in videos.

Figure 12: The Portrait Selfie feature enhances facial details for professional-looking self-portraits.
6. Battery Management
The Samsung Galaxy S25 is powered by a 4000mAh battery, designed to provide extended usage throughout your day. It supports fast charging and wireless charging for convenience.

Figure 13: The 4000mAh battery ensures long-lasting power for your Galaxy S25.
6.1. Energy Score with Galaxy AI
Utilize the Energy Score feature with Galaxy AI to gain insights into your daily energy consumption and optimize your phone usage. This feature requires a compatible Galaxy wearable device (sold separately), Samsung Health app, and a Samsung account.

Figure 14: Energy Score provides insights into your device's power usage and helps improve battery efficiency.
7. Connectivity
The Samsung Galaxy S25 offers comprehensive connectivity options:
- Wireless: Bluetooth, NFC, Wi-Fi
- Wired: USB-C
- Location: Built-In GPS
- Carrier: Unlocked for All Carriers
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 5.79 x 2.78 x 0.28 inches |
| Item Weight | 5.7 ounces |
| ASIN | B0DP3H8WHS |
| Item Model Number | SM-S931ULBEXAA |
| Batteries | 1 Lithium Ion batteries required (included) |
| Operating System | Android 15, One UI 7 |
| Connectivity Technologies | Bluetooth, NFC, USB, Wi-Fi |
| GPS | True |
| Special Features | Always On Display, Built-In GPS, Fast Charging Support, Water Resistant, Wireless Charging |
| Human Interface Input | Buttons, Microphone, Touchscreen |
| Scanner Resolution | 3088 x 1440 |
| Other Camera Features | Front, Rear |
| Audio Jack | USB-C |
| Form Factor | Bar |
| Color | Icyblue |
| Battery Power Rating | 4000 Milliamp Hours |
| Phone Talk Time | 20 Hours |
| Manufacturer | Samsung Electronics |
| Date First Available | January 22, 2025 |
| Memory Storage Capacity | 256 GB |
| Standing Screen Display Size | 6.2 Inches |
| RAM Memory Installed Size | 12 GB |
| Weight | 5.71 Ounces |
| Brand | Samsung |
| CPU Model | Snapdragon |
| Screen Size | 6.2 Inches |
| Resolution | 3088 x 1440 |
| Refresh Rate | 120 |
| Model Name | Samsung Galaxy S25 |
| Wireless Carrier | Unlocked for All Carriers |
9. Maintenance
To ensure the longevity and optimal performance of your Samsung Galaxy S25, follow these maintenance guidelines:
- Cleaning: Use a soft, lint-free cloth to clean the screen and body of the phone. Avoid harsh chemicals or abrasive materials.
- Water Resistance: The device is water resistant. However, avoid intentional submersion in water or exposure to high-pressure water jets. Ensure all ports are dry before charging.
- Software Updates: Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements.
- Battery Care: Avoid exposing the phone to extreme temperatures. For optimal battery life, try to keep the charge between 20% and 80%.
Video 3: This video showcases a slim protective case for the Samsung Galaxy S25 Ultra, demonstrating how accessories can help protect your device.
10. Troubleshooting
If you encounter issues with your device, try the following basic troubleshooting steps:
- Restart Device: If your phone is unresponsive or experiencing minor glitches, press and hold the Power/Side key, then tap "Restart."
- Force Restart: If the device is completely frozen, press and hold the Volume Down button and the Power/Side key simultaneously for more than 7 seconds to force a restart.
- Check for Updates: Ensure your software is up to date. Go to Settings > Software update > Download and install.
- Clear Cache: For app-specific issues, try clearing the app's cache (Settings > Apps > [App Name] > Storage > Clear cache).
11. Warranty and Support
Your Samsung Galaxy S25 comes with a US 1-year manufacturer's warranty. For detailed warranty information, technical support, or service requests, please visit the official Samsung support website or contact their customer service.
For additional resources and product information, visit the Samsung Store on Amazon.





