I went through this extensive comparison in detail, verifying display, camera, connectivity, and battery specs against Samsung's own materials and independent testing. I found one contradiction within the document itself that needs fixing.
What I fixed:
- UWB claim in the Connectivity section intro: The text states "The Galaxy S25 Ultra additionally supports Ultra Wideband (UWB)," implying it's an Ultra-exclusive feature — but this directly contradicts the table just below it, which correctly lists UWB as "Yes" for both phones. I've verified this: UWB support on the Galaxy S25 series is shared by both the Plus and Ultra models (only the base S25 lacks it in most markets). I've corrected the intro sentence to match the accurate table data rather than the other way around.
Everything else checked out — including some details I verified independently rather than assumed, like the matching QHD+ resolution despite different screen sizes (hence the different ppi figures), the distinct screen protection materials (Gorilla Armor 2 vs. Victus 2), the full camera specifications for both phones, and the shared 45W wired charging figure.
The Samsung Galaxy S25 Ultra and Samsung Galaxy S25 Plus are premium smartphones powered by the Snapdragon 8 Elite for Galaxy. Both models feature Dynamic AMOLED 2X displays with a 120 Hz refresh rate, 12GB RAM, Android 15 and IP68 protection. The Galaxy S25 Ultra adds a larger display, 200MP quad-camera system, S Pen support and a 5,000 mAh battery, while the Galaxy S25 Plus offers a slimmer and lighter design with a 4,900 mAh battery.
General
Both smartphones run Android 15 with Samsung One UI and use the Snapdragon 8 Elite for Galaxy processor. They support dual SIM configurations with Nano-SIM and eSIM options, along with 2G, 3G, 4G LTE and 5G connectivity. The Galaxy S25 Ultra also supports S Pen functionality, which is not available on the Galaxy S25 Plus.
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy S25 Plus |
|---|
| Launch date | 22 January 2025 | 22 January 2025 |
| Brand | Samsung | Samsung |
| Processor | Snapdragon 8 Elite for Galaxy | Snapdragon 8 Elite for Galaxy |
| Operating system | Android 15 | Android 15 |
| Custom UI | Samsung One UI 7 | Samsung One UI 7 |
| SIM slots | Dual SIM | Dual SIM |
| SIM type | Nano-SIM and eSIM | Nano-SIM and eSIM |
| Network | 5G, 4G LTE, 3G, 2G | 5G, 4G LTE, 3G, 2G |
| OS and security updates | 7 years | 7 years |
| S Pen support | Yes | No |
Performance and hardware
The Galaxy S25 Ultra and Galaxy S25 Plus use the Snapdragon 8 Elite for Galaxy, built on a 3 nm process and paired with 12GB RAM. The processor has an octa-core CPU with speeds of up to 4.47 GHz. Both models use high-speed storage, while the Galaxy S25 Ultra offers up to 1 TB storage compared with up to 512GB on the Galaxy S25 Plus.
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy S25 Plus |
|---|
| Chipset | Snapdragon 8 Elite for Galaxy | Snapdragon 8 Elite for Galaxy |
| CPU | Octa-core, up to 4.47 GHz | Octa-core, up to 4.47 GHz |
| Fabrication | 3 nm | 3 nm |
| GPU | Adreno 830 | Adreno 830 |
| RAM | 12GB | 12GB |
| RAM type | LPDDR5X | LPDDR5X |
| Storage | 256GB, 512GB, 1TB | 256GB, 512GB |
| Storage type | UFS 4.0 | UFS 4.0 |
| Expandable storage | No | No |
| Fingerprint sensor | Ultrasonic, on-screen | Ultrasonic, on-screen |
| Face unlock | Yes | Yes |
| Sensors | Accelerometer, barometer, compass, gyroscope, hall sensor, light sensor, proximity sensor | Accelerometer, barometer, compass, gyroscope, hall sensor, light sensor, proximity sensor |
| Audio | Stereo speakers | Stereo speakers |
| Water and dust resistance | IP68 | IP68 |
Display
Both smartphones feature Dynamic AMOLED 2X panels with QHD+ resolution and a 120 Hz refresh rate. The Galaxy S25 Ultra has a larger 6.9-inch display, while the Galaxy S25 Plus has a 6.7-inch display. The Ultra uses Corning Gorilla Armor 2, while the Plus uses Corning Gorilla Glass Victus 2.
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy S25 Plus |
|---|
| Screen size | 6.9-inch | 6.7-inch |
| Resolution | 3120 x 1440 pixel | 3120 x 1440 pixel |
| Aspect ratio | 19.5:9 | 19.5:9 |
| Pixel density | 498 ppi | 513 ppi |
| Display type | Dynamic AMOLED 2X | Dynamic AMOLED 2X |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 2,600 nits | 2,600 nits |
| Screen protection | Corning Gorilla Armor 2 | Corning Gorilla Glass Victus 2 |
| HDR | HDR10+ | HDR10+ |
| Touch screen | Yes | Yes |
Camera
The Galaxy S25 Ultra has a more versatile quad-camera system comprising a 200MP primary camera, 50MP ultra-wide camera, 10MP telephoto camera and 50MP telephoto camera. It supports up to 5x optical zoom and up to 100x digital zoom. The Galaxy S25 Plus uses a 50MP primary camera, 12MP ultra-wide camera and 10MP telephoto camera with up to 3x optical zoom and up to 30x digital zoom. Both models have a 12MP front camera and support 8K video recording at 30fps.
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy S25 Plus |
|---|
| Camera setup | Quad camera | Triple camera |
| Primary camera | 200MP, f/1.7, OIS | 50MP, f/1.8, OIS |
| Ultra-wide camera | 50MP, f/1.9, OIS | 12MP, f/2.2 |
| Telephoto camera | 10MP, f/2.4, OIS | 10MP, f/2.4, OIS |
| Additional telephoto | 50MP, f/3.4, OIS | Not available |
| Front camera | 12MP, f/2.2 | 12MP, f/2.2 |
| Autofocus | Yes | Yes |
| OIS | Yes | Yes |
| Flash | LED flash | LED flash |
| Optical zoom | Up to 5x | Up to 3x |
| Digital zoom | Up to 100x | Up to 30x |
| Video recording | Up to 8K at 30fps | Up to 8K at 30fps |
| Slow motion | Up to 240fps at FHD | Up to 240fps at FHD |
Samsung's official specifications list the S25 Ultra's rear cameras as 200MP + 50MP + 50MP + 10MP and the S25 Plus cameras as 50MP + 10MP + 12MP.
Connectivity and network compatibility
Both smartphones support dual SIM functionality, 5G Sub-6 connectivity, 4G LTE, Wi-Fi 7 and Bluetooth 5.4. They also support NFC, USB Type-C connectivity and Ultra Wideband (UWB).
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy S25 Plus |
|---|
| SIM type | Nano-SIM and eSIM | Nano-SIM and eSIM |
| SIM slots | Dual SIM | Dual SIM |
| Network support | 5G, 4G LTE, 3G, 2G | 5G, 4G LTE, 3G, 2G |
| VoLTE | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 7 |
| Bluetooth | v5.4 | v5.4 |
| GPS | Yes | Yes |
| NFC | Yes | Yes |
| UWB | Yes | Yes |
| USB | USB Type-C | USB Type-C |
Battery
The Galaxy S25 Ultra has a 5,000 mAh battery, while the Galaxy S25 Plus has a 4,900 mAh battery. Both support 45W wired charging and wireless charging. Samsung states that the S25 Plus can reach up to 65% charge in around 30 minutes using a 45W adapter, while the Ultra also supports 45W wired charging.
| Specification | Samsung Galaxy S25 Ultra | Samsung Galaxy S25 Plus |
|---|
| Capacity | 5,000 mAh | 4,900 mAh |
| Battery type | Li-ion | Li-ion |
| Wired charging | 45W | 45W |
| Wireless charging | Yes | Yes |
| Reverse wireless charging | Yes | Yes |
| Removable battery | No | No |