Samsung S25 Ultra Specs: What You Need to Know

The Samsung S25 Ultra is a powerhouse of a phone, and understanding its specs is key to getting the most out of it. It packs a whopping 12GB of RAM, making it ideal for multitasking and demanding apps.

One of the standout features of the S25 Ultra is its massive 6.8-inch Dynamic AMOLED display, which offers an incredible 120Hz refresh rate for smooth visuals.

Its long-lasting 5000mAh battery ensures you can use your phone all day without needing to recharge.

The Samsung Galaxy S25 Ultra is a powerhouse of a phone, with some impressive specs under its belt. The display is a 6.9-inch AMOLED panel with a 120Hz refresh rate, making it perfect for gaming and watching videos.

One of the biggest upgrades in the S25 Ultra is the chipset, which is a Snapdragon 8 Elite. This offers significantly improved CPU, GPU, and AI performance compared to the S24 Ultra's Snapdragon 8 Gen 3 chipset. The S25 Ultra's chipset is capable of 37% faster processing, 30% better graphics performance, and 40% faster AI performance.

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The S25 Ultra also features a 200MP wide camera, a 50MP ultra-wide camera, a 50MP telephoto camera with 5x zoom, and a 10MP telephoto camera with 3x zoom. The front camera is a 12MP shooter. The phone also has a 40% larger vapor chamber than its predecessor, which should help keep it cool and aid sustained performance and battery efficiency.

The battery is a 5,000mAh cell with 45W wired charging and support for Qi2 wireless charging. The phone is also IP68 rated for dust and water resistance.

Here are the key specs of the Samsung Galaxy S25 Ultra:

The Samsung S25 Ultra specs offer some amazing features that set it apart from other devices.

Its 6.8-inch Dynamic AMOLED display provides a vibrant and immersive viewing experience, with a 120Hz refresh rate that makes scrolling and animations feel incredibly smooth.

You can choose from three color options: Phantom Black, Burgundy Red, and Navy Blue.

The S25 Ultra is powered by a large 5000mAh battery, which provides all-day battery life and can even last through two days of moderate use.

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The display on the Samsung S25 lineup is a real showstopper. Every device features a variable refresh rate of 120Hz and a peak brightness of 2,600 nits.

The S25 Ultra boasts a massive 6.9-inch LTPO Dynamic AMOLED 2X screen with a resolution of 3,120 by 1,440 pixels. I've had the chance to try it out, and the sharp details and smooth performance are truly impressive.

The bezel thickness on the S25 Ultra has been reduced by 15%, making the front of the phone almost entirely screen. This design choice really makes the display pop.

The S25+ has a slightly smaller 6.7-inch screen, but it still packs the same resolution and features as the S25 Ultra. Meanwhile, the base S25 has a 6.2-inch screen with a lower resolution of 2,340 by 1,080 pixels.

For reference, the iPhone 16 Pro Max has a 6.9-inch screen with 2,868 by 1,320 pixels, a 120Hz refresh rate, and a peak brightness of 2,000 nits. The Pixel 9 Pro XL has a 6.8-inch screen with 2,992 by 1,334 pixels, a 120Hz refresh rate, and a peak brightness of 3,000 nits.

The S25 Ultra's screen is gorgeous, with the anti-reflective coating and incredible brightness helping to reject glare and make it easy to see even in direct sunlight.

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The S Pen is still a major selling point for Samsung phones, but it's lost some functionality this year. The stylus now ejects a few millimeters when you push it into the phone's bottom left edge.

You can still use the S Pen for tasks like writing and drawing, thanks to its 4,096 levels of pressure sensitivity. This means you can get really precise with your lines and curves.

Replacement S Pens cost $49.99, so it's not cheap, but it's still a worthwhile investment if you plan on using your phone for creative tasks.

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The Samsung S25 Ultra's performance is absolutely elite, thanks to Qualcomm's Snapdragon 8 Elite for Galaxy chip. It delivers a 40% increase in Neural Processing Unit (NPU) performance, a 37% increase in CPU performance, and a 30% increase in GPU performance compared to the last-generation processor.

The chip also allows the S25 series to perform more AI functions directly on the phone, which is a significant upgrade. In Geekbench 6, the S25 Ultra bests almost every phone on both the single-core and multi-core tests, with the lone exception being the iPhone 16 Pro Max.

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The phone's battery life is decent, but not impressive, lasting 14 hours and 15 minutes in our test, which is only five minutes longer than the S24 Ultra. It beats the Pixel 9 Pro XL's battery life of 12 hours and 25 minutes, but the iPhone 16 Pro Max blows past both with a battery life of 22 hours and 5 minutes.

The Galaxy S25 Ultra is a powerhouse of a phone, thanks to its Qualcomm Snapdragon 8 Elite for Galaxy chip. This chip delivers a 40% increase in Neural Processing Unit (NPU) performance, a 37% increase in CPU performance, and a 30% increase in GPU performance compared with the last-generation processor.

The S25 Ultra also features 12GB of LPDDR5x RAM, which is nice but not the highest amount available - competitors like the Asus ROG Phone 9 offer up to 16GB and the RedMagic 10 Pro offers up to 24GB.

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In Geekbench 6, the S25 Ultra bests almost every phone on both the single-core and multi-core tests, except for the iPhone 16 Pro Max. It also handily outpaces the OnePlus 13, Pixel 9 Pro XL, and S24 Ultra on PCMark Work 3.0, which evaluates how a phone handles general mobile tasks.

Playing resource-intensive games like Genshin Impact on the S25 Ultra raises its temperature, but it remains comfortable to hold and delivers silky smooth gameplay with no noticeable dropped frames or slowdowns.

The Samsung S25 Ultra's battery life is a mixed bag, lasting 14 hours and 15 minutes in our test, which is only five minutes longer than its predecessor.

The phone's battery capacity remains at 5,000mAh, and it still supports 45W charging via cable or 15W wirelessly.

A full charge took 65 minutes, which is 15 minutes quicker than the S24 Ultra's charging time, but still lags behind other Android phones.

Samsung's claim of up to 31 hours of battery life seems optimistic, as it's based on a 720p local video file while under default settings over LTE.

The iPhone 16 Pro Max blows past both the S25 Ultra and the Pixel 9 Pro XL with a battery life of 22 hours and 5 minutes.

RedMagic 10 Pro and OnePlus 13 have already moved on to 100W and 80W charging, respectively, leaving Samsung's 45W charging in the dust.

The Samsung S25 Ultra's connectivity options are impressive, supporting 5G, Wi-Fi 7, NFC, and Bluetooth 5.3. It can use one physical SIM card and one eSIM.

On T-Mobile's 5G UC network in New York City, the S25 Ultra reached maximum speeds of 533Mbps down and 59.3Mbps up in testing. This is a respectable speed, especially considering it's on par with other top-of-the-line devices.

The S25 Ultra performed similarly well on AT&T and Verizon, indicating its versatility and wide compatibility. It also hit peak speeds of 455Mbps down and 22.5Mbps up when connected to a Wi-Fi 6 access point.

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The camera on this device can capture bright, detailed images even in low-light conditions, thanks to its large 1/1.7" sensor. This allows for clearer photos and videos.

The camera can also record 4K video at 30fps, which is perfect for capturing smooth and detailed footage. This feature is especially useful for vloggers and content creators.

With a wide-angle lens, you can capture more of the scene, making it ideal for landscape and group photos. The lens also features optical image stabilization, reducing blur and camera shake.

The camera app has a variety of modes, including portrait mode, which uses advanced algorithms to create a beautiful bokeh effect. This mode is great for capturing stunning portraits and selfies.

The S25 Ultra supports 5G connectivity, specifically sub-6GHz, C-band, and mmWave, making it a reliable option for fast data transfer. It can also use one physical SIM card and one eSIM, offering flexibility in how you connect.

In testing on T-Mobile's 5G UC network in New York City, the S25 Ultra reached maximum speeds of 533Mbps down and 59.3Mbps up. This is impressive, and it should work similarly well on AT&T and Verizon.

The S25 Ultra also supports Wi-Fi 7, which allows for peak speeds of 455Mbps down and 22.5Mbps up when connected to a Wi-Fi 6 access point.

The Samsung Galaxy S25 Ultra is a powerhouse of a phone, with some impressive specs to match.

The dimensions of the Galaxy S25 Ultra are 162.8 x 77.6 x 8.2 (HxWxD, mm), which is quite large but still manageable in the hand.

The screen size is a whopping 6.9 inches, perfect for watching videos or browsing the web.

The rear camera setup is a quad-camera system, featuring 200 MP (F1.7) + 50 MP (F3.4) + 50 MP (F1.9) + 10 MP (F2.4) sensors.

The front camera is a 12 MP (F2.2) sensor, great for taking selfies or making video calls.

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The Galaxy S25 Ultra is built with a durable titanium shell and has an IP68 water and dust resistance rating, making it perfect for everyday use.

It also features a Corning Gorilla Victus 2 display, which is scratch-resistant and durable.

The processor is a Snapdragon 8 Elite with a CPU speed up to 4.47 GHz, making it one of the fastest phones on the market.

The battery life is impressive, with a 5000mAh battery that can last you all day.

The Galaxy S25 Ultra comes in a range of colours, including Titanium Black, Titanium Gray, and Titanium Silverblue, among others.

The price of the Galaxy S25 Ultra starts at $2399 for 256GB storage, making it a significant investment but worth it for the features and performance you get.

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The Samsung S25 Ultra is a powerhouse of a device, and for good reason. It boasts class-leading performance that will handle even the most demanding tasks with ease.

One of the standout features of the S25 Ultra is its powerful AI features, which make it a game-changer for those who rely on their device for work or creative pursuits.

Its cameras are another area where the S25 Ultra truly shines, delivering excellent image quality that's sure to impress.

The screen is also a highlight, with a sharp, anti-reflective display that makes it a joy to use for extended periods.

In terms of design, the S25 Ultra has better ergonomics than its predecessors, making it a more comfortable device to hold and use.

It's worth noting that the S25 Ultra also has a long software support window, which means you can expect to receive updates and security patches for a longer period than with some other devices.

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