Samsung SM-S938B/DS

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Samsung Galaxy S25 Ultra SM-S938B/DS User Manual

Model: SM-S938B/DS

Introduction

Welcome to the user manual for your new Samsung Galaxy S25 Ultra SM-S938B/DS AI Smartphone. This guide provides essential information to help you set up, operate, and maintain your device, ensuring you get the most out of its advanced features, including its powerful AI capabilities and high-resolution camera system.

Samsung Galaxy S25 Ultra Smartphone

Figure 1: Samsung Galaxy S25 Ultra in Titanium Black.

1. Setup and Initial Configuration

1.1 Inserting the SIM Card

The Samsung Galaxy S25 Ultra supports Dual SIM functionality. To insert your SIM card(s):

  1. Locate the SIM card tray on the side of your device.
  2. Use the provided ejection tool to open the tray.
  3. Place your Nano-SIM card(s) into the tray with the gold contacts facing down. Ensure they are correctly seated.
  4. Gently push the tray back into the slot until it clicks into place.

Note: For USA buyers, this device is compatible with GSM carriers such as T-Mobile, Metro, Tello, Mint, and Ultra. It is not compatible with CDMA carriers like Verizon, Sprint, Boost, AT&T, Cricket, US Cellular, Xfinity, or Visible.

1.2 Powering On/Off

  • To Power On: Press and hold the Side key until the Samsung logo appears.
  • To Power Off: Press and hold the Side key and Volume Down button simultaneously, then tap "Power off" on the screen. Alternatively, swipe down from the top of the screen to open the Quick Panel, tap the Power icon, and select "Power off".

1.3 Initial Setup Wizard

Upon first power-on, follow the on-screen instructions to complete the initial setup, including language selection, Wi-Fi connection, Google account setup, and security settings (Face Recognition is available).

2. Operating Your Galaxy S25 Ultra

2.1 Basic Navigation

Navigate your device using intuitive touch gestures. Swipe, tap, pinch, and spread to interact with apps and content on the 6.9-inch AMOLED display.

2.2 AI Features (Galaxy AI)

The Galaxy S25 Ultra integrates advanced AI features to enhance your daily experience:

  • Now Brief: Stay informed with daily insights and information from selected apps, displayed proactively on your device.
  • AI Camera with Audio Eraser: Capture vibrant videos even in low-light conditions. The Audio Eraser feature minimizes unwanted background noises, allowing for clearer audio in your recordings.
  • Smart Switch: Easily transfer your photos, videos, music, apps, contacts, and conversations securely from your old device to your new Galaxy S25 Ultra.
  • Interpreter Calls: Utilize AI for real-time translation during phone calls.
  • Google Gemini Integration: Access advanced AI assistance for various tasks and queries.

2.3 Camera Functions

Your Galaxy S25 Ultra features a powerful camera system with a 200 MP effective video resolution and 8K video capture capabilities. It includes four rear-facing cameras and one 12 MP front-facing camera.

  • Portrait Features: Advanced portrait modes automatically adjust skin tones and preserve natural textures for professional-looking photos.
  • Video Recording: Record stunning 8K videos at 30 frames per second.
  • Zoom: Utilize the advanced zoom capabilities for capturing distant subjects with clarity.

2.4 Media Playback

Control your music and other media directly from the lock screen. Swipe through tracks and manage playback with ease.

3. Maintenance and Care

3.1 Cleaning Your Device

To keep your Galaxy S25 Ultra in optimal condition:

  • Wipe the screen and body with a soft, lint-free cloth.
  • Avoid using harsh chemicals or abrasive materials.

3.2 Software Updates

Regularly check for and install software updates to ensure your device has the latest features, security patches, and performance improvements. Go to Settings > Software update to check for updates.

3.3 Water Resistance

The Galaxy S25 Ultra is water resistant. However, it is not waterproof. Avoid submerging the device in water for extended periods or exposing it to high-pressure water jets. Always ensure the SIM tray is properly closed to maintain water resistance.

4. Troubleshooting Common Issues

  • Device not turning on: Ensure the battery is charged. Connect the device to a charger and try powering it on after a few minutes.
  • Apps freezing or crashing: Close the problematic app and reopen it. If the issue persists, restart your device.
  • Poor network connection: Check your SIM card insertion. Ensure you are within your carrier's coverage area. Restarting the device can often resolve minor network issues.
  • Battery draining quickly: Adjust screen brightness, close unused apps, and review battery usage in settings to identify power-hungry applications.
  • Screen unresponsive: Perform a forced restart by pressing and holding the Side key and Volume Down button for more than 7 seconds.

5. Specifications

FeatureSpecification
BrandSamsung
Model NameSM-S938BZKKTPA
Memory Storage Capacity512 GB
Screen Size6.9 Inches
Resolution3120 x 1440
Refresh Rate120 Hz
Wireless CarrierUnlocked (GSM compatible)
Cellular Technology5G
Connectivity Technology2G, 3G, 4G, 5G
ColorBlack
SIM Card Slot CountDual SIM
Form FactorBar
Biometric Security FeatureFace Recognition
SIM Card SizeNano
Water Resistance LevelWater Resistant
Headphones JackNo headphone jack
Flash Memory Supported Size Maximum512 GB
Model Year2025
Phone Talk Time24 Hours
Effective Video Resolution200 MP
Video Capture Resolution8k
Frame Rate30 fps
Display TypeAMOLED
Display Resolution Maximum3120x1440
Display Pixel Density498 Pixels Per Inch (PPI)
Front Photo Sensor Resolution12 MP
Number of Rear Facing Cameras4
Number of Front Cameras1
Battery Capacity5000 Milliamp Hours
Item Weight250 Grams
Item Dimensions6.3 x 4.72 x 1.18 inches
GPS Geotagging FunctionalityTrue

6. Warranty and Support

For detailed warranty information, technical support, and service inquiries, please visit the official Samsung support website or contact their customer service. You can find more information at the Samsung Store on Amazon or the official Samsung website.

© 2025 Samsung. All rights reserved. Samsung and Galaxy S25 Ultra are trademarks of Samsung Electronics Co., Ltd.

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