Samsung Galaxy S25 Ultra

The Samsung Galaxy S25 Ultra measures 162.8 mm tall, 77.6 mm wide, and 8.2 mm thick, with a total volume of 103.59 cm³ and a weight of 218 g. It carries an IP68 rating, confirming full waterproof protection against dust and water immersion. The device is not foldable and does not feature a rugged build, with an operating temperature range of 0 °C to 35 °C. Repairability is rated at 8.5 on the French Repairability Index, indicating a relatively high ease of repair by consumer electronics standards.

The Samsung Galaxy S25 Ultra features a 6.9″ OLED/AMOLED touchscreen with a resolution of 1440 x 3120 px and a pixel density of 498 ppi, delivering a sharp and detailed image across the panel. Brightness reaches 2600 nits with a contrast ratio of 3,000,000:1, and the display supports both HDR10 and HDR10+, though Dolby Vision is not supported. The 120Hz refresh rate is complemented by a 240Hz touch sampling rate for responsive input, and an Always-On Display mode is available for at-a-glance information. The screen is protected by Gorilla Armor 2 glass and does not include a secondary display.

The Samsung Galaxy S25 Ultra is powered by the Qualcomm Snapdragon 8 Elite chipset, built on a 3 nm process with a TDP of 8.2W and an 8-thread CPU configuration running at 2 x 4.47 GHz and 6 x 3.53 GHz using big.LITTLE architecture with HMP support. It comes with 12 GB of DDR5 RAM at 5300 MHz, a maximum memory capacity of 24 GB, and 1024 GB of internal storage, backed by a memory bandwidth of 85.1 GB/s across two channels and ECC memory support. The Adreno 830 GPU operates at 1200 MHz with a turbo clock of 1100 MHz, 1536 shading units, integrated graphics, and support for DirectX 12, OpenGL 3.2, OpenGL ES 3.2, and OpenCL 3, with output across up to two displays. Cache configuration includes 192 KB L1, 12 MB L2, and 8 MB L3, and the chip supports TrustZone, multithreading, integrated LTE, and 64-bit processing. Benchmark results include an AnTuTu score of 2,207,809, Geekbench 6 single-core and multi-core scores of 3,057 and 9,846 respectively, a 3DMark Wild Life score of 22,077, Wild Life Extreme of 6,375, Steel Nomad of 2,318, PCMark Work 3.0 performance of 20,390, and a PCMark battery result of 917 minutes.

The Samsung Galaxy S25 Ultra features a quad rear camera system with sensors at 200, 50, 50, and 10 MP, apertures of f/1.7, f/3.4, f/1.9, and f/2.4, and pixel sizes of 0.6, 0.7, 0.7, and 1.12 µm respectively, covering a focal range from 24 mm to 111 mm with 5x optical zoom. All sensors use CMOS and BSI technology, and the system includes optical image stabilization, phase-detection autofocus, laser autofocus, touch autofocus, and continuous autofocus during video recording. Video capture reaches up to 4320 x 30 fps with HDR10 recording supported, while Dolby Vision recording is not available, and slow-motion recording is included. Manual controls extend to exposure, ISO, focus, white balance, and shutter speed, with additional shooting modes covering burst, panorama, timelapse, HDR, and RAW capture, though 360° panorama, 3D recording, and an RGB flash are not supported. The dual-tone LED flash comprises two LEDs, and the front camera offers a single 12 MP sensor at f/2.2 without a front-facing flash or secondary lens, and is not positioned under the display. DxOMark rates the camera system at 146.

The Samsung Galaxy S25 Ultra runs Android 15 and includes a broad set of privacy controls, covering clipboard warnings, location privacy options, camera and microphone access management, app tracking blocking, and cross-site tracking prevention, though Mail Privacy Protection is not available. On the usability side, it supports dark mode, extra dim mode, dynamic theming, theme customization, focus modes, customizable notifications, notification permission controls, a media picker, full-page scrolling screenshots, picture-in-picture, split-screen multitasking, widgets, sharing intents, Wi-Fi password sharing, and the ability to function as a PC. The system also supports on-device machine learning, offline voice recognition, voice commands, device tracking, multi-user accounts, app offloading, child lock, battery health checks, and the ability to play games while they are still downloading. Direct OS updates from the vendor are not supported, and Quick Start is not available.

The Samsung Galaxy S25 Ultra houses a non-removable rechargeable 5000 mAh battery with a rated battery life of 31 hours and a battery level indicator for monitoring charge. Wired fast charging is supported at 45W, while wireless charging runs at 15W and reverse wireless charging is available at 4.5W, though no charger is included in the box. An ultra power-saving mode is on hand for extending usage when charge is critically low.

The Samsung Galaxy S25 Ultra includes stereo speakers and a three-microphone setup, but does not feature a 3.5 mm headphone jack or a built-in radio. For wireless audio, it supports aptX, aptX HD, and LDAC codecs, though aptX Adaptive and aptX Lossless are not available.

The Samsung Galaxy S25 Ultra supports 5G and offers Wi-Fi compatibility across 802.11n, 802.11ac, 802.11ax (Wi-Fi 6 and 6E), and Wi-Fi 7 (802.11be), with download speeds reaching 10,000 Mbits/s and upload speeds of 3,500 Mbits/s. It accommodates two physical SIM cards alongside two eSIMs, and connects via USB Type-C with USB 3.2, while there is no external memory slot or HDMI output. Bluetooth 5.4 and NFC are both present, and a stylus is included in the box. Onboard sensors cover a gyroscope, accelerometer, barometer, compass, and GPS with Galileo support, and ANT+ is also supported, though there is no heart rate monitor, infrared sensor, or motion and optical tracking. Security relies on a fingerprint scanner, with no iris scanner or 3D facial recognition available, and neither crash detection nor emergency SOS via satellite is supported. SAR values are rated at 1.26 W/kg (US head), 0.64 W/kg (US body), 1.25 W/kg (EU head), and 1.42 W/kg (EU body), and the device is not DLNA-certified and does not include a built-in projector.

The Samsung Galaxy S25 Ultra includes a video light for use during video recording, while the display is flat rather than curved and uses neither sapphire glass nor an e-paper panel.