Samsung Galaxy S25 Ultra VS Xiaomi Poco F7 Ultra

In terms of design, the Samsung Galaxy S25 Ultra and Xiaomi Poco F7 Ultra are remarkably close, sharing the same IP68 waterproof rating, meaning both can withstand submersion in fresh water up to 1.5 meters for 30 minutes — a genuine quality-of-life feature rather than a differentiator here. Neither has a rugged build or a foldable form factor, placing both firmly in the conventional flagship slab category.

Where the two diverge slightly is in physical dimensions and weight. The S25 Ultra is marginally larger across all axes — taller at 162.8 mm vs 160.3 mm, wider at 77.6 mm vs 75 mm, and slightly thinner at 8.2 mm vs 8.4 mm. This results in a modestly larger overall volume (103.6 cm³ vs 101.0 cm³). In the hand, the Poco F7 Ultra's narrower and shorter profile will feel marginally more manageable for one-handed use, which matters on phones of this size. The S25 Ultra is also slightly heavier at 218 g vs 212 g — a 6-gram difference that is unlikely to be felt in daily use but does technically favor the Poco.

Overall, the design specs are nearly a wash. The Poco F7 Ultra holds a slim edge in ergonomics thanks to its more compact footprint and lighter weight, but the real-world difference is minimal. Users prioritizing one-handed comfort may lean toward the Poco, while those indifferent to a few millimeters and grams will find the S25 Ultra's slightly sleeker 8.2 mm profile appealing.

Both screens share the same fundamental technology — OLED/AMOLED panels with 1440p resolution, 120Hz refresh rates, HDR10+, and Always-On Display support — so the baseline experience is strong on either device. The S25 Ultra's larger 6.9″ canvas versus the Poco F7 Ultra's 6.67″ panel is the most immediately obvious difference, giving Samsung's phone more screen real estate for media, multitasking, and the S Pen. The Poco, however, packs pixels slightly tighter at 526 ppi versus 498 ppi, a difference that is technically measurable but practically invisible at normal viewing distances.

The more meaningful split comes down to brightness versus contrast and touch responsiveness. The S25 Ultra's 2600 nits typical brightness towers over the Poco's 1800 nits, which translates directly to superior outdoor legibility in sunlight — a daily real-world scenario. On the flip side, the Poco F7 Ultra counters with a higher contrast ratio of 5,000,000:1 versus 3,000,000:1 and exclusive Dolby Vision support, which means better tone-mapped HDR for compatible streaming content. Its 480Hz touch sampling rate — double the S25 Ultra's 240Hz — also gives it a tangible edge for competitive gaming, where input latency perception matters.

Taken together, the S25 Ultra's decisive brightness advantage makes it the stronger all-around display for everyday use, particularly outdoors. The Poco F7 Ultra is no slouch and pulls ahead for gaming responsiveness and Dolby Vision content, but those are more niche advantages. Users who frequently use their phone in bright environments will find the S25 Ultra's screen noticeably more usable — giving Samsung a clear overall edge in this category.

At the silicon level, these two phones are effectively twins — both run the Qualcomm Snapdragon 8 Elite on a 3nm process with the Adreno 830 GPU, identical TDP, memory bandwidth, and cache architecture. That said, the S25 Ultra squeezes more out of the shared platform in CPU and GPU clock speeds: its prime cores reach 4.47 GHz versus the Poco F7 Ultra's 4.32 GHz, and its GPU runs at 1200 MHz versus 1100 MHz. Those advantages materialize in the CPU-focused Geekbench 6 scores — the S25 Ultra leads both single-core (3057 vs 2970) and multi-core (9846 vs 8887) — and in the 3DMark Wild Life Extreme GPU test (6375 vs 6204).

The AnTuTu result, however, tells a strikingly different story: the Poco F7 Ultra posts a substantially higher score of 2,580,490 versus the S25 Ultra's 2,207,809 — a gap of roughly 17%. Since AnTuTu is a composite benchmark that also weighs memory and storage subsystem performance, the Poco's larger 16 GB of RAM (versus 12 GB) is likely a contributing factor, giving it more headroom for memory-intensive workloads. The S25 Ultra, in turn, offers up to 1 TB of internal storage versus the Poco's 512 GB cap, which is a practical advantage for power users who store large files locally.

Declaring a clear winner here is genuinely difficult. The S25 Ultra has higher raw clock speeds and wins every benchmark that isolates CPU and GPU throughput, making it the stronger choice for sustained peak performance tasks. The Poco F7 Ultra's RAM advantage and dominant AnTuTu score suggest it handles broader system-level workloads more fluidly. For most users the difference will be imperceptible day-to-day, but the S25 Ultra holds a narrow edge in raw computational performance, while the Poco is better equipped for heavy multitasking.

The camera systems reveal one of the starkest gaps between these two phones. The S25 Ultra fields a four-lens array headlined by a 200 MP main sensor alongside 50 MP, 50 MP, and 10 MP lenses, while the Poco F7 Ultra operates a three-lens setup with a 50 MP primary. The resolution gap is dramatic on paper, but the more practical differentiator is zoom range: the S25 Ultra's 5x optical zoom and focal range of 24–111 mm gives it genuine telephoto reach for portraits and distant subjects, whereas the Poco's 2.5x optical zoom and 15–60 mm range tells a different story — one that leans into wide-angle versatility rather than tele performance. Interestingly, the Poco's wider minimum focal length of 15 mm versus the S25 Ultra's 24 mm means it can capture broader scenes, which suits landscape and architectural photographers.

In terms of imaging capabilities, the S25 Ultra pulls ahead on several meaningful fronts. It adds laser autofocus, a BSI sensor for better low-light sensitivity, RAW shooting for professional post-processing, manual shutter speed control, and HDR10 video recording — none of which the Poco F7 Ultra supports. The Poco does counter with a wider main aperture of f/1.6 versus f/1.7 on the S25 Ultra, which offers a marginal low-light edge on that one lens, and its front camera steps up to 32 MP versus 12 MP, making it the stronger choice for selfie-focused users. Both record 8K video, though the S25 Ultra does so at 30 fps versus the Poco's 24 fps — a subtle but real advantage for smoother 8K footage.

The S25 Ultra holds a clear and comprehensive edge in this category. Its superior zoom range, higher-resolution sensor array, RAW support, and broader manual controls make it a significantly more capable imaging platform for serious photographers. The Poco F7 Ultra is a competent shooter with strengths in wide-angle coverage and selfie resolution, but it cannot match the breadth of the S25 Ultra's camera system.

Running the same version of Android 15, both phones share an extensive common foundation: dark mode, dynamic theming, on-device machine learning, split-screen multitasking, picture-in-picture, offline voice recognition, customizable notifications, and a robust set of privacy controls including app tracking blocks, camera/microphone permissions, and location options. For the vast majority of users, the day-to-day software experience will feel broadly similar on either device.

The differences, while not numerous, are worth noting for specific user profiles. The S25 Ultra adds cross-site tracking protection in the browser, Wi-Fi password sharing, focus modes for managing interruptions, and crucially, desktop PC mode — the ability to connect the phone to a display and use it as a full computer. That last feature is a meaningful productivity differentiator for power users who want a single device to serve dual roles. The Poco F7 Ultra lacks all four of these features, which collectively represent a meaningful gap in software versatility.

The S25 Ultra holds a clear edge in this category. While neither phone receives direct OS updates (both rely on their respective manufacturer pipelines), Samsung's software layer offers a broader feature set — particularly the desktop PC mode and focus modes — that meaningfully expands what the device can do. The Poco F7 Ultra covers all the essentials competently, but users invested in software depth and productivity features will find the S25 Ultra's implementation more complete.

Capacity-wise, the Poco F7 Ultra has a modest but real advantage with a 5300 mAh battery versus the S25 Ultra's 5000 mAh — a 6% larger cell that, all else being equal, translates to slightly longer endurance between charges. Neither battery is removable, which is standard for flagship-tier phones of this class.

Where the gap becomes genuinely significant is charging speed. The Poco F7 Ultra supports 120W wired fast charging compared to the S25 Ultra's 45W — nearly three times faster. In practice, this means the Poco can go from near-empty to full in a fraction of the time, making battery anxiety far less of a concern even with heavier daily use. Wireless charging follows the same pattern: the Poco delivers 50W wirelessly versus the S25 Ultra's 15W, a meaningful difference for users who rely on wireless pads as their primary charging method. The S25 Ultra does recover one point with reverse wireless charging, allowing it to top up accessories like earbuds or smartwatches — a feature absent on the Poco. Also worth noting: the Poco includes a charger in the box, while the S25 Ultra does not, which is a tangible out-of-box convenience and cost consideration.

The Poco F7 Ultra wins this category decisively. A larger battery combined with dramatically faster wired and wireless charging speeds gives it a commanding advantage for users who prioritize endurance and quick top-ups. The S25 Ultra's reverse wireless charging is a useful perk, but it does not offset the Poco's substantially superior charging ecosystem.

For speaker and wired audio, these two phones are identical on paper — both drop the 3.5 mm headphone jack and both feature stereo speakers, which is the baseline expectation for a flagship device in this segment. The absence of a headphone jack means wireless audio quality becomes the more consequential spec to examine.

On Bluetooth codec support, the shared ground is substantial: both phones carry aptX, aptX HD, and LDAC, covering the most widely used high-resolution wireless audio codecs. LDAC in particular is the gold standard for Android wireless audio, capable of transmitting up to 990 kbps to compatible headphones. Where the Poco F7 Ultra separates itself is with support for aptX Adaptive and aptX Lossless — two codecs the S25 Ultra lacks. aptX Adaptive dynamically adjusts bitrate for low-latency performance, beneficial for gaming and video, while aptX Lossless enables CD-quality wireless transmission to compatible devices — a genuinely future-facing capability.

The Poco F7 Ultra has a clear edge in audio for wireless headphone users, specifically those with compatible aptX Adaptive or aptX Lossless hardware. For the majority of users with standard LDAC headphones the difference is moot, but audiophiles and gamers invested in the aptX ecosystem will find the Poco's broader codec support meaningfully more capable.

Wireless connectivity is well-matched across the board — both phones support 5G, Wi-Fi 7, NFC, USB-C, and identical peak download and upload speeds. The more interesting divergence is in Bluetooth: the Poco F7 Ultra ships with Bluetooth 6.0 versus the S25 Ultra's 5.4, making it one of the first devices to adopt the newest standard. Bluetooth 6.0 introduces improved connection reliability and more precise distance estimation, though real-world ecosystem support for its newest features remains limited for now. It is nonetheless a forward-looking advantage.

Each phone carries unique hardware the other lacks. The S25 Ultra supports 2 physical SIMs plus 2 eSIMs, offering significantly more flexibility for travelers or users managing multiple numbers — the Poco is limited to 2 physical SIMs with no eSIM support at all, which is a notable omission at this price tier. The S25 Ultra also includes a built-in stylus and a barometer for elevation and weather sensing, and supports ANT+ for fitness device connectivity. The Poco F7 Ultra counters with an infrared sensor, letting it function as a universal remote for TVs and appliances — a practical everyday convenience that Samsung omits.

This category is genuinely split by use case rather than having a single winner. The S25 Ultra holds the broader connectivity edge thanks to its eSIM support, stylus, and ANT+ compatibility — features that matter for productivity, travel, and fitness users. The Poco's newer Bluetooth version and IR blaster are meaningful perks for tech-forward and home-entertainment users. Overall, Samsung's more complete feature set gives it a modest advantage for most users, but the Poco is far from outclassed.

The miscellaneous specs for these two phones are a complete mirror image — both have a video light, neither uses sapphire glass, and both feature flat, standard displays with no e-paper secondary screen. There is simply nothing in this data set that separates the two products in any meaningful way.

This category is an unambiguous tie. Users can disregard these specs as a deciding factor entirely and focus on the more substantive differences covered in other categories.