Huawei Pura X VS Samsung Galaxy S25 Ultra

The most defining design difference here is that the Huawei Pura X is a foldable device, while the Samsung Galaxy S25 Ultra is a traditional candy-bar slab. This fundamentally shapes every other dimension: when unfolded, the Pura X is notably wider (91.7 mm vs 77.6 mm) but significantly shorter (143.2 mm vs 162.8 mm), reflecting the square-ish proportions typical of inward-folding displays. In practical terms, the Pura X offers a more compact footprint when folded and a distinct multitasking-friendly form when open, while the S25 Ultra prioritizes a tall, narrow profile optimized for one-handed scrolling and stylus use.

On portability, the Pura X holds a meaningful edge. At 195.9 g and 7.2 mm thin (unfolded), it is lighter and slimmer than the S25 Ultra's 218 g and 8.2 mm. For a foldable — a category notorious for added bulk — matching or undercutting a flagship slab in thinness is a genuine engineering achievement and translates to a more comfortable all-day carry.

On durability, the advantage shifts to the S25 Ultra. Its IP68 rating covers both dust and water immersion, whereas the Pura X's IPX8 rating only certifies water resistance — the absence of a dust-ingress rating is a real-world consideration for users in sandy or dusty environments. Overall, the Pura X wins on form-factor versatility and raw portability, but the S25 Ultra offers more comprehensive environmental protection.

Screen quality is where the S25 Ultra pulls decisively ahead. Its 6.9″ panel at 1440 x 3120 px delivers a pixel density of 498 ppi — a significant step above the Pura X's 396 ppi on its 6.3″ main display. That gap is perceptible in everyday use: text renders with noticeably sharper edges and fine image detail is more resolved on the S25 Ultra, particularly relevant given its stylus-focused workflow. The S25 Ultra also adds HDR10+ support and an Always-On Display, neither of which the Pura X offers — HDR10+ enables dynamic tone-mapping for compatible video content, while AOD provides at-a-glance notifications without fully waking the screen.

The Pura X counters with a higher touch sampling rate of 300Hz versus the S25 Ultra's 240Hz, which means the screen polls for touch input more frequently — a meaningful edge in fast-paced gaming or precise stylus-like finger gestures. It also features a secondary screen, a characteristic of its foldable form that provides quick access to notifications and controls without opening the device. The S25 Ultra, meanwhile, offers branded damage-resistant glass, providing documented scratch and drop resilience that the Pura X's display lacks.

Both panels share the same OLED/AMOLED technology and a 120Hz refresh rate, so baseline smoothness is even. Overall though, the S25 Ultra holds a clear display advantage for media consumption and visual fidelity, while the Pura X's secondary screen and higher touch sampling rate offer practical utility gains specific to its foldable use case.

The raw performance gap between these two chips is substantial. The S25 Ultra's Snapdragon 8 Elite scores 2,207,809 on AnTuTu versus the Pura X's 1,248,000 on the Kirin 9020 — roughly a 77% lead. Much of this comes down to manufacturing process: the Snapdragon is built on a cutting-edge 3 nm node compared to the Kirin's older 7 nm node. A smaller process means more transistors per mm², translating directly into higher throughput and better power efficiency per task. The CPU clock speeds reinforce this — the Snapdragon's cores run at up to 4.47 GHz versus 2.5 GHz on the Kirin's fastest cores, a massive frequency advantage that accelerates demanding workloads like video editing, AI processing, and complex gaming.

The graphics and memory subsystems tell a similar story. The S25 Ultra's Adreno 830 clocks at 1200 MHz against the Pura X's 840 MHz, and its memory bandwidth of 85.1 GB/s nearly doubles the Kirin's 44 GB/s — bandwidth being critical for feeding high-resolution textures and large datasets to the GPU without bottlenecks. The S25 Ultra also steps up to OpenCL 3 versus OpenCL 2, offering more headroom for GPU-accelerated compute tasks. The Pura X does counter with more RAM (16 GB vs 12 GB), which benefits heavy multitasking and keeping more apps resident in memory, but its RAM operates at 2750 MHz versus the S25 Ultra's considerably faster 5300 MHz, limiting how quickly that memory can actually be utilized.

The S25 Ultra's higher TDP of 8.2W versus the Pura X's 6W reflects its greater power draw under load — an inherent trade-off of pushing a more powerful chip. Overall, the S25 Ultra holds a commanding performance advantage across every meaningful metric; the Pura X's only edge is its larger RAM capacity, which offers limited benefit given the memory speed disadvantage.

The camera systems diverge sharply in both scope and capability. The S25 Ultra fields a four-lens array headlined by a 200 MP primary sensor, joined by two 50 MP lenses and a 10 MP telephoto, while the Pura X operates a three-lens setup topped by a 50 MP main shooter. In practical terms, the S25 Ultra's 200 MP sensor captures dramatically more spatial data, enabling aggressive crops, high-detail prints, and more flexibility in post-processing. Its 5x optical zoom also outreaches the Pura X's 3.5x, meaning more reach before digital interpolation degrades quality — a tangible advantage for wildlife, sport, or distant subjects.

Stabilization and sensor technology further tip the scales. The S25 Ultra includes optical image stabilization (OIS), which physically compensates for hand movement during handheld shots and video — the Pura X lacks OIS entirely, making it more susceptible to blur in low light or while moving. The S25 Ultra also uses a BSI (back-side illuminated) sensor in addition to CMOS, a design that improves light capture efficiency. Add to this the S25 Ultra's ability to shoot RAW files and its manual shutter speed control — both absent on the Pura X — and the gap for serious photographers widens considerably. RAW output preserves far more image data for editing, while manual shutter speed is essential for long-exposure and motion-blur creative work.

Shared features — phase-detection autofocus, laser autofocus, slow-motion, HDR mode, and panorama — keep the Pura X competitive for everyday shooting. But across the key differentiators of resolution, zoom range, stabilization, and manual control depth, the S25 Ultra holds a clear and comprehensive camera advantage.

At the OS feature level, these two devices are remarkably well-matched. Both offer dark mode, customizable notifications, split-screen multitasking, widgets, voice commands, child lock, sharing intents, multi-user support, battery health monitoring, and camera/microphone privacy controls. For the vast majority of day-to-day software interactions, users of either device will find an equivalent feature set — neither holds a meaningful edge in standard productivity or privacy tooling.

The single differentiating spec in this group is that the S25 Ultra can be used as a PC, while the Pura X cannot. This desktop mode capability allows the S25 Ultra to connect to an external display and function in a desktop-like environment — a genuine productivity multiplier for users who want to consolidate their phone and computer workflows, or work from a monitor without carrying a laptop. It is a meaningful real-world advantage, particularly for business users or frequent travelers.

Notably, neither device receives direct OS updates — both rely on manufacturer-mediated update pipelines rather than receiving updates straight from the base OS source. This is a shared limitation. Overall, the operating system category is essentially a tie in breadth of features, with the S25 Ultra claiming a focused but practical edge through its PC mode capability.

Battery capacity is close but favors the S25 Ultra: its 5000 mAh cell edges out the Pura X's 4720 mAh. The difference is modest in isolation, but combined with the S25 Ultra's more power-efficient 3 nm chip (established in the Performance group), it likely translates to a more noticeable longevity gap in real-world use than the raw mAh numbers alone suggest. For the Pura X — a foldable with a secondary screen that also draws power — the slightly smaller battery may feel more constrained under heavy use.

Where the Pura X fights back hard is charging speed. Its 66W wired fast charging outpaces the S25 Ultra's 45W by a significant margin, meaning meaningfully shorter time tethered to a cable during top-ups. The wireless charging gap is even more striking: the Pura X supports 40W wireless versus the S25 Ultra's 15W — making the Pura X one of the faster wireless-charging phones in its class, and a strong choice for users who prefer cable-free charging pads as their primary method. Reverse wireless charging follows the same pattern, with the Pura X offering 7.5W versus 4.5W on the S25 Ultra. One additional practical note: the Pura X comes with a charger in the box, while the S25 Ultra does not.

This category has no clean overall winner — it depends entirely on priorities. The S25 Ultra holds the edge in raw battery capacity and likely endurance; the Pura X counters with substantially faster wired and wireless charging speeds and includes a charger out of the box, making it the more convenient choice for users focused on quick power recovery.

Audio is a lean category for both devices, and the two are nearly identical in configuration. Neither offers a 3.5 mm headphone jack, both rely on stereo speakers for built-in sound output, and neither includes a radio. For wired listening, both users will need to rely on a USB-C adapter or go fully wireless.

The sole differentiator is the S25 Ultra's support for LDAC — a high-resolution Bluetooth audio codec that transmits up to three times more data than standard Bluetooth audio. For users with LDAC-compatible wireless headphones, this translates to audibly closer-to-lossless sound quality over a Bluetooth connection. The Pura X lacks LDAC, meaning it is limited to lower-bitrate Bluetooth codecs for wireless audio, which is a tangible disadvantage for audiophiles or anyone who has invested in compatible high-fidelity headphones.

Notably, neither device supports aptX Lossless, so the S25 Ultra's wireless audio advantage is real but not absolute. Still, based strictly on the provided specs, the S25 Ultra holds a narrow but meaningful edge in this category purely on the strength of its LDAC support.

Both devices share a strong connectivity foundation — 5G, Wi-Fi 7, NFC, USB Type-C, dual SIM, and GPS are common to both. However, the S25 Ultra's wireless stack goes slightly further with Wi-Fi 6E support (in addition to the shared Wi-Fi 7), adding access to the less-congested 6 GHz band for improved throughput in dense environments. Its Bluetooth 5.4 also nudges ahead of the Pura X's 5.2, offering incremental improvements in connection reliability and energy efficiency. More practically, the S25 Ultra supports 2 eSIMs alongside its 2 physical SIM slots, giving it considerably more SIM flexibility — useful for frequent travelers managing multiple carriers without swapping physical cards. Its USB 3.2 standard also beats the Pura X's USB 3.1, enabling faster data transfers to external devices.

The unique features each device brings reflect quite different design philosophies. The S25 Ultra includes a built-in stylus, a barometer for environmental sensing, and ANT+ support for connecting fitness accessories like heart rate straps and cycling sensors — all of which extend its utility for productivity and health-focused users. The Pura X counters with an infrared sensor, enabling it to function as a universal remote for TVs and appliances, and crucially offers emergency SOS via satellite — a potentially life-saving feature that allows distress signals to be sent even without cellular coverage, which the S25 Ultra entirely lacks.

Determining an overall winner here depends heavily on use case. The S25 Ultra is better equipped for power users, productivity workflows, and fitness tracking, while the Pura X's satellite SOS and IR blaster address different but equally practical real-world needs. On sheer breadth of connectivity and feature depth — particularly the stylus, eSIM support, and sensor suite — the S25 Ultra holds a slight overall edge, but the Pura X's satellite emergency capability is a uniquely significant differentiator that no spec comparison can fully reduce to a tie-breaker.

The Miscellaneous group offers no differentiation between these two devices whatsoever. Both have a video light, neither uses a sapphire glass display, neither features a curved display, and neither incorporates an e-paper display. Every data point in this category is identical.

This is a complete tie. Based strictly on the provided specs, this group has no bearing on a purchase decision between the Huawei Pura X and the Samsung Galaxy S25 Ultra.