The Samsung Galaxy S25 Series, comprising the Galaxy S25, S25+, and S25 Ultra, introduces a range of advanced features, blending powerful hardware with innovative AI capabilities. Launched on January 22, 2025, at Samsung’s Galaxy Unpacked event in San Jose, California, and released on February 7, 2025, these flagship Android smartphones showcase significant upgrades over their predecessors, the S24 series. Below is an overview of the key features based on available information.
Display and Design
Galaxy S25: Features a 6.2-inch Dynamic AMOLED 2X display with a 120Hz refresh rate and a resolution of 2340 x 1080 (FHD+), reaching up to 2600 nits peak brightness. It’s protected by Corning Gorilla Glass Victus 2.
Galaxy S25+: Boasts a larger 6.7-inch Dynamic AMOLED 2X display, also with a 120Hz refresh rate, but with a higher QHD+ resolution of 3120 x 1440. Like the S25, it uses Gorilla Glass Victus 2 and hits 2600 nits brightness.
Galaxy S25 Ultra: Offers the largest 6.9-inch Dynamic AMOLED 2X display (up from 6.8 inches in the S24 Ultra) with a 3120 x 1440 resolution and 120Hz refresh rate. It introduces Corning Gorilla Glass Armor 2, an industry-first anti-reflective glass ceramic for enhanced durability and reduced glare, also reaching 2600 nits. The Ultra model features slimmer bezels (15% thinner than the S24 Ultra) and rounded corners for a unified design aesthetic across the series.
All models are thinner than their S24 counterparts (S25 and S25+ by 0.4mm, Ultra by 0.4mm), with a matte finish on the glass back and aluminum rails for a premium feel and reduced fingerprints.
Performance
Processor: All three models are powered by the Qualcomm Snapdragon 8 Elite for Galaxy, a custom 3nm chipset optimized by Samsung and Qualcomm. It delivers a 37% CPU performance boost, 30% graphics improvement, and 40% enhanced neural processing unit (NPU) compared to the S24 series. This chip is used globally, unlike previous years when some regions received Exynos processors.
Cooling: Enhanced vapor chambers improve thermal management—40% larger in the S25 Ultra and 15% larger in the S25 and S25+—paired with a new thermal interface material to efficiently transfer heat from the processor, ensuring sustained performance during intensive tasks like gaming.
RAM and Storage: Each model comes with 12GB of LPDDR5X RAM as standard (with a 16GB option for the S25 Ultra in South Korea and Greater China for specific 1TB models). Storage options include 128GB, 256GB, and 512GB for the S25 and S25+, while the S25 Ultra offers up to 1TB.
Software: Ships with Android 15 and Samsung’s One UI 7, promising 7 years of OS and security updates (support until 2032). The S25 Ultra’s S Pen has lost Bluetooth functionality (a cost-saving measure), limiting it to touchscreen input without air gestures.
Camera System
Galaxy S25 and S25+: Equipped with a triple-camera setup: a 50MP wide-angle main sensor (f/1.8), a 12MP ultra-wide (f/2.2, 120° field of view), and a 10MP telephoto with 3x optical zoom (f/2.4). The front camera is a 12MP sensor (f/2.2). No hardware upgrades from the S24 series, but enhanced AI processing improves photo and video quality.
Galaxy S25 Ultra: Features a quad-camera system: a 200MP main sensor (f/1.7), a new 50MP ultra-wide (f/1.9, 120° field of view, improved from 12MP in the S24 Ultra), a 50MP periscope telephoto with 5x optical zoom (f/3.4), and a 10MP telephoto with 3x optical zoom (f/2.4). The front camera remains 12MP (f/2.2). It can record up to 8K video, with improved noise reduction algorithms and an Audio Eraser feature to remove unwanted background sounds.
AI Enhancements: The Next Gen ProVisual Engine enhances computational photography, offering natural skin tones, vivid colors, and tools like Nightography Video for low-light recording and Portrait Studio for stylized selfies.
Battery and Charging
Galaxy S25: 4000mAh battery with 25W wired and 15W wireless charging (no capacity or speed increase from the S24).
Galaxy S25+: 4900mAh battery, also with 25W wired and 15W wireless charging.
Galaxy S25 Ultra: 5000mAh battery with 45W wired charging (no wireless speed increase). All models are “Qi2 Ready,” meaning they support the Qi2 standard but lack built-in magnets, requiring a magnetic case for full functionality (e.g., MagSafe-like accessories).
Video playback times are extended: 29 hours for S25, 30 hours for S25+, and 31 hours for S25 Ultra (1 hour more than the S24 Ultra).
Galaxy AI Features
Cross-App Actions: Powered by Google Gemini (now the default assistant over Bixby), the S25 series can perform multi-step tasks across apps with one voice command, e.g., “Find the next Celtics game and add it to my calendar.”
AI Select: An evolution of Smart Select, it analyzes on-screen content and suggests actions like creating GIFs from videos or saving images.
Now Brief: Delivers personalized daily summaries (weather, schedule, Energy Score based on sleep/activity data from Galaxy wearables) without requiring user prompts.
Circle to Search: Upgraded to recognize audio, emails, phone numbers, and URLs on-screen, activated by long-pressing the home button.
Pet Care: Analyzes pet-related issues (specific functionality unclear but highlighted as a new AI feature).
Data is secured on-device with Samsung’s Personal Data Engine, featuring post-quantum encryption.
Additional Features
Connectivity: Supports Verizon’s satellite messaging for emergency services in areas without cellular or Wi-Fi (U.S.-specific).
Colors: S25 and S25+ come in Silver Shadow, Navy, Mint, and Icy Blue; S25 Ultra offers Titanium Black, Titanium Gray, Titanium Silverblue, Titanium Whitesilver, plus exclusive online colors (Titanium Jade Green, Jet Black, Pink Gold).
ProScaler: Upscales lower-resolution content to match the display (available on S25+ and Ultra due to QHD+ screens).
The S25 series emphasizes AI-driven usability and performance over radical hardware changes, positioning it as a refined evolution of Samsung’s flagship line, with the Ultra model standing out for its display, camera, and design advancements.