Samsung Galaxy S25 VS Samsung Galaxy S25 Ultra

The most defining difference in this group is size and weight. The Samsung Galaxy S25 weighs 162 g and measures 146.9 × 70.5 × 7.2 mm, while the Galaxy S25 Ultra comes in at 218 g with dimensions of 162.8 × 77.6 × 8.2 mm. That is a 56 g weight difference — roughly equivalent to adding two AA batteries — and a volume gap of nearly 29 cm³ (74.57 vs 103.59 cm³). In practical terms, the S25 Ultra will feel noticeably heavier in hand and in a pocket, and its wider, taller footprint makes one-handed use significantly harder for most users. The extra 1 mm of thickness on the Ultra is less impactful on its own, but combined with the larger footprint, it contributes to a device that is objectively bulkier in every dimension.

Where the two phones converge is on durability and environmental protection. Both carry an IP68 rating, meaning full waterproofing under the same conditions, and both share an identical French Repairability Index of 8.5 — a strong score indicating similar ease of repair. Neither device is marketed as rugged, and both operate within the same temperature range of 0 °C to 35 °C, so environmental resilience offers no differentiation here.

For users who prioritize a compact, lightweight device that is easier to carry and use single-handedly, the S25 holds a clear ergonomic edge. The S25 Ultra's larger form factor is a trade-off that typically comes with a bigger display and battery, but purely on design portability, the standard S25 wins this category. Durability and repairability, however, are a complete tie.

Screen size and resolution are where these two devices diverge most meaningfully. The Galaxy S25 Ultra sports a larger 6.9″ panel at 1440 × 3120 px, yielding a pixel density of 498 ppi, compared to the S25's 6.2″ screen at 1080 × 2340 px and 416 ppi. That 82 ppi gap is perceptible in everyday use — text appears crisper, fine UI details are sharper, and content like photos or documents render with noticeably more precision on the Ultra. For anyone who reads extensively on their phone, edits images, or simply values visual fidelity, the Ultra's display is a tangible step up.

On the glass protection front, both phones use damage-resistant glass, but the Ultra is covered by Gorilla Armor 2 rather than the S25's Gorilla Glass Victus 2. Gorilla Armor is specifically engineered to reduce reflections and surface scratching, making it a more premium solution for outdoor readability and long-term scratch resistance — a meaningful distinction despite both phones being technically ″protected.″ Everywhere else, the two screens are identical: both run at 120Hz with a 240Hz touch sampling rate, peak at 2600 nits of brightness, and support HDR10+ and Always-On Display while skipping Dolby Vision.

The S25 Ultra holds a clear display advantage. Its larger, sharper panel combined with the superior Gorilla Armor 2 glass makes it the stronger choice for display-focused users. The S25, while offering an excellent screen in its own right, simply cannot match the Ultra's resolution or glass quality — though users who prefer a smaller, more pocketable device may willingly accept that trade-off.

Both phones run on the Qualcomm Snapdragon 8 Elite with the same Adreno 830 GPU, identical 12 GB of RAM, and the same core clock configuration — so on paper, they should perform identically. In practice, the benchmark results tell a more nuanced story. The Galaxy S25 outscores the Ultra across every measured metric: its AnTuTu score of 3,050,000 is substantially higher than the Ultra's 2,207,809, and it leads in both Geekbench 6 single-core (3,175 vs 3,057) and the 3DMark Wild Life Extreme test (6,755 vs 6,375). This pattern is consistent with thermal dynamics — the S25's smaller body can dissipate heat differently under sustained load, which may allow it to maintain peak clock speeds more effectively during benchmark runs.

Where the Ultra reclaims ground decisively is storage. It ships with 1 TB of internal storage versus the S25's 512 GB — a doubling that matters greatly for power users who store large media libraries, shoot in RAW, or avoid cloud dependency. Everything else in the performance stack is shared: DDR5 RAM at 5300 MHz, a 3 nm process node, 85.1 GB/s memory bandwidth, and an 8.2 W TDP — a well-matched and capable foundation in both cases.

On raw computational performance, the benchmark data gives the S25 a measurable edge despite the identical chipset — a counterintuitive result worth noting. However, if storage capacity is a priority, the Ultra's 1 TB option is a significant practical advantage that the S25 cannot match. Users who push their device hard in benchmarks or gaming may find the S25 slightly snappier under load, while those who need maximum local storage should lean toward the Ultra.

The camera gap between these two devices is substantial. The Galaxy S25 Ultra fields a four-lens rear system headlined by a 200 MP primary sensor, complemented by 50 MP, 50 MP, and 10 MP lenses — versus the S25's triple-camera setup of 50, 12, and 10 MP. That 200 MP sensor is a fundamentally different class of imaging hardware: it captures vastly more detail for cropping flexibility and produces higher-resolution output when needed, while its wider f/1.7 aperture (vs the S25's f/1.8) allows slightly more light in low-light conditions. The Ultra's fourth lens also adds a dedicated mid-range telephoto that the S25 simply does not have.

Zoom range is another decisive differentiator. The Ultra covers a focal length of 24–111 mm with 5x optical zoom, while the S25 spans only 13–67 mm at 3x optical zoom. In practical terms, the Ultra can bring distant subjects significantly closer without digital degradation — a meaningful advantage for travel, sport, or portrait photography at range. The Ultra also adds laser autofocus, which improves focus speed and accuracy in low-contrast or low-light scenes, a capability the S25 lacks entirely.

For video, both record at 4320p at 30 fps with HDR10 support, and the front cameras are identically specced at 12 MP with an f/2.2 aperture — so neither phone has an edge in selfie or video quality based on these specs alone. Overall, the S25 Ultra holds a commanding advantage in the camera category: more lenses, a dramatically higher-resolution main sensor, greater optical zoom range, and laser autofocus make it the clear choice for photography-focused users. The S25 remains capable, but it cannot match the Ultra's versatility or reach.

Running Android 15 on both devices, the software experience is nearly identical across the board — and the shared feature list is genuinely comprehensive. Both phones offer on-device machine learning, dynamic theming, split-screen multitasking, Picture-in-Picture, offline voice recognition, customizable notifications, and a full suite of privacy controls including camera/microphone permissions and app tracking blockers. For the vast majority of daily tasks, a user switching between these two phones would notice no meaningful software difference.

Where the S25 Ultra pulls ahead is in three specific features absent on the standard S25: cross-site tracking protection, Wi-Fi password sharing, and focus modes. Cross-site tracking blocking adds a layer of browsing privacy that the S25 does not provide natively. Wi-Fi password sharing is a convenience feature that makes it easier to grant network access to others without manually reading out credentials. Focus modes allow users to create context-aware profiles that limit distractions — a productivity tool with real daily utility for anyone managing work-life boundaries on their device.

None of these three differences are platform-defining, but they are all genuinely useful in daily life, and collectively they give the S25 Ultra a modest but real software edge. Users who care about browsing privacy, household convenience, or structured digital wellbeing tools will find the Ultra's OS feature set slightly more complete. For everyone else, the two phones are effectively tied on software.

Battery capacity is a clear differentiator here: the Galaxy S25 Ultra packs a 5000 mAh cell versus the S25's 4000 mAh — a 25% larger reserve. That gap translates directly to longer time between charges, which is particularly relevant given the Ultra's larger, higher-resolution display drawing more power. The S25's smaller battery is paired with a smaller screen, so real-world endurance may partially offset the raw capacity difference, but on capacity alone the Ultra has a meaningful advantage for heavy users or those who dislike charging mid-day.

Wired charging speed is another point of separation. The Ultra supports 45W fast charging compared to the S25's 25W — meaning the Ultra can replenish its larger battery significantly faster. A larger battery charging at nearly double the wattage closes the refill time gap considerably, making top-up charging during short breaks more practical on the Ultra. Wireless charging is identical on both at 15W, and reverse wireless charging matches at 4.5W — handy for topping up accessories like earbuds. Notably, neither phone ships with a charger in the box.

The S25 Ultra wins this category on both counts that matter most: it holds more charge and refills faster when wired. The S25 is by no means battery-deficient, but users who prioritize all-day endurance and quick top-ups will find the Ultra's combination of 5000 mAh capacity and 45W charging a more capable and flexible setup.

Audio is one of the most evenly contested — and nuanced — categories between these two phones. Both drop the 3.5 mm headphone jack, offer stereo speakers, and share support for aptX and LDAC as a common Bluetooth audio foundation. But their codec support diverges in opposite directions from there. The Galaxy S25 supports aptX Adaptive and aptX Lossless, which the Ultra lacks entirely, while the S25 Ultra carries aptX HD, which the S25 omits. aptX Adaptive is a modern, variable-bitrate codec that dynamically adjusts quality and latency, making it well-suited for both audiophile listening and low-latency gaming. aptX Lossless takes that further, enabling true CD-quality wireless audio over compatible hardware — a meaningful capability for serious listeners. aptX HD, by contrast, is an older high-resolution codec that predates Adaptive and offers less flexibility.

On the microphone front, the Ultra holds a quiet but practical advantage with 3 microphones versus the S25's 2. An additional microphone generally improves voice capture directionality, background noise suppression, and call clarity — benefits that matter most during calls, video recording, and voice commands in noisy environments.

This category does not have a single clean winner — it depends on use case. For wireless audio quality and codec versatility, the S25 has the edge thanks to aptX Adaptive and aptX Lossless support. For voice capture and microphone performance, the S25 Ultra leads with its third microphone. Users who invest in high-end Bluetooth headphones supporting modern codecs will get more from the S25; those who prioritize call and recording quality will benefit more from the Ultra.

Across nearly every connectivity dimension, these two phones are identical: both support 5G, Wi-Fi 7 (along with Wi-Fi 4/5/6/6E), Bluetooth 5.4, NFC, USB 3.2 Type-C, and the same peak download and upload speeds of 10,000 / 3,500 Mbps. The sensor suite is equally matched — gyroscope, accelerometer, barometer, compass, GPS, and Galileo support are all present on both. For connectivity purposes, a user choosing between these two phones is getting the same capable, future-ready wireless stack regardless of which model they pick.

The single feature that sets the Galaxy S25 Ultra apart in this category is the inclusion of a built-in stylus. For users who annotate documents, sketch, take handwritten notes, or need precision input, this is a genuinely significant differentiator — it transforms the device into a productivity tool that the standard S25 simply cannot replicate without an accessory. SAR radiation values differ slightly between the two models, but the variations are minor and fall within normal ranges on both sides, making them a non-factor for most users.

As a connectivity package, this is effectively a tie — the shared spec sheet is comprehensive and modern on both devices. But the S25 Ultra earns a practical edge in this group through its integrated stylus, which adds a meaningful input dimension for note-takers, creatives, and professionals. If stylus functionality is irrelevant to your workflow, the two phones are indistinguishable here.

The miscellaneous spec group for these two devices is a complete tie — every data point is identical. Both phones include a video light, and neither features a sapphire glass display, a curved display, or an e-paper display. There is nothing in this group that differentiates one device from the other.

This category is a draw by every available measure. Users making a decision between the Samsung Galaxy S25 and the S25 Ultra should weigh the more substantive differences found in other specification groups, as this one offers no distinguishing information.