Xiaomi 15 Ultra VS Xiaomi Poco F7 Ultra

Both the Xiaomi 15 Ultra and the Poco F7 Ultra share the same core durability credentials: an IP68 waterproof rating, meaning both can withstand submersion in fresh water. Neither has a ruggedized build or a foldable form factor, so they sit in the same category of premium, candy-bar smartphones with standard dust and water protection.

Where they diverge is in physical footprint. The Poco F7 Ultra is measurably the more compact device — it is 1 mm thinner (8.4 mm vs. 9.4 mm) and 17 g lighter (212 g vs. 229 g). The height and width differences are marginal (under 1 mm each), but the combined effect on overall volume is significant: the Poco F7 Ultra displaces roughly 100.99 cm³ compared to the 15 Ultra's 114.17 cm³ — about 12% less material in the hand. In practice, 17 g may sound trivial, but over a full day of use it translates to a noticeably less fatiguing grip, especially during one-handed operation or extended media consumption.

From a design standpoint, the Poco F7 Ultra has a clear edge in ergonomics: it is slimmer, lighter, and more pocket-friendly without sacrificing any water-resistance capability. The 15 Ultra's larger volume likely accommodates a bigger battery or more complex camera hardware, but purely on the basis of the design specs provided, the Poco F7 Ultra is the easier device to live with day-to-day.

On the fundamentals, these two screens are remarkably close: both are OLED/AMOLED panels running at 1440 x 3200 px with a 120Hz refresh rate, and both support the full suite of HDR formats — HDR10, HDR10+, and Dolby Vision — alongside an Always-On Display. The size difference (6.73″ vs. 6.67″) and pixel density gap (522 vs. 526 ppi) are negligible in daily use; neither screen will look sharper than the other to the naked eye.

The real divergence is in brightness and contrast. The Xiaomi 15 Ultra's panel reaches a remarkable 3200 nits of typical brightness versus the Poco F7 Ultra's 1800 nits — that is nearly 80% more luminance. In practical terms, this is the difference between a screen that stays fully legible in direct sunlight and one that becomes a struggle. Paired with a contrast ratio of 8,000,000:1 on the 15 Ultra against the Poco's 5,000,000:1, the flagship produces deeper blacks and more vivid HDR imagery with greater pop in bright scenes. The Poco F7 Ultra counters with a higher 480Hz touch sampling rate versus the 15 Ultra's 300Hz — a meaningful advantage for competitive mobile gaming where touch responsiveness is paramount — and it also ships with branded damage-resistant glass, which the 15 Ultra notably lacks.

On balance, the Xiaomi 15 Ultra holds a clear display edge for media consumption and outdoor visibility, thanks to its dramatically higher brightness and contrast ratio. The Poco F7 Ultra carves out a genuine advantage for gamers with its superior touch sampling rate and adds everyday durability with glass protection, but these gains do not offset the 15 Ultra's commanding lead in raw display performance.

At the silicon level, these two phones are twins: both run the Qualcomm Snapdragon 8 Elite on a 3 nm process, with identical CPU configurations, Adreno 830 GPUs clocked at 1100 MHz, 16 GB of LPDDR5 RAM at 5300 MHz, and the same memory bandwidth, cache hierarchy, and TDP. Any user picking up either device will experience the same class of flagship-tier performance in everyday tasks, gaming, and AI workloads.

The benchmark scores, however, reveal a consistent gap that warrants attention. The Xiaomi 15 Ultra posts an AnTuTu score of 2,746,580 versus the Poco F7 Ultra's 2,580,490 — a roughly 6% lead — and the advantage carries into Geekbench 6, where the 15 Ultra scores 3,234 single-core and 10,059 multi-core against the Poco's 2,970 and 8,887 respectively. Given identical silicon, this delta most likely reflects differences in sustained thermal management and tuning rather than raw hardware. In practice, it suggests the 15 Ultra maintains peak performance under load for longer before throttling, which matters in extended gaming sessions or heavy computational tasks.

Storage is the other concrete differentiator: the 15 Ultra ships with 1 TB of internal storage, doubling the Poco F7 Ultra's 512 GB. For users who store large video libraries, shoot in RAW, or avoid cloud dependency, that gap is significant. Taken together, the Xiaomi 15 Ultra has the performance edge in this group — not because it uses different hardware, but because it demonstrably extracts more from the same chip while also offering far more headroom on storage.

The camera systems reveal perhaps the starkest contrast between these two phones. The Xiaomi 15 Ultra fields a four-lens array headlined by a 200 MP primary sensor, complemented by three 50 MP cameras, while the Poco F7 Ultra operates a three-lens setup with 50 MP across its main and secondary cameras and a 32 MP tertiary. Beyond raw megapixels, the 15 Ultra's 4.3x optical zoom substantially outreaches the Poco's 2.5x — a real-world difference that means noticeably more detail when shooting distant subjects without digital degradation. Both front cameras match at 32 MP.

The feature gap widens further in the details. The 15 Ultra supports RAW shooting, manual shutter speed control, and laser autofocus — tools that matter to photographers who process images in post or need precision in challenging focus situations. For video, the 15 Ultra records 8K at 30 fps versus the Poco's 24 fps, and critically, it supports HDR10 and Dolby Vision recording while the Poco supports neither. That means the 15 Ultra captures high-dynamic-range video in a format that displays correctly on compatible screens; the Poco's footage will not carry those metadata benefits.

The verdict here is unambiguous: the Xiaomi 15 Ultra holds a commanding camera advantage across resolution, zoom range, video quality, and manual control depth. The Poco F7 Ultra's camera system is capable for everyday photography, but users who prioritize imaging — whether in stills or video — will find the 15 Ultra to be a materially more versatile and capable tool.

Running the same version of Android 15, these two phones are essentially identical from a software standpoint. Both deliver a full modern Android feature set: dynamic theming, on-device machine learning, Picture-in-Picture, split-screen multitasking, offline voice recognition, customizable notifications, and a robust suite of privacy controls covering location, camera, and microphone access. Neither receives direct OS updates nor supports PC mode, placing them on equal footing for long-term software support expectations.

Sifting through the entire spec list, only one difference surfaces: the Xiaomi 15 Ultra supports focus modes, while the Poco F7 Ultra does not. Focus modes allow users to create scheduled or on-demand profiles that restrict distracting apps and notifications — a useful productivity and digital wellbeing tool, though not a feature that alters core functionality for most users.

This group is effectively a near-complete tie, with the 15 Ultra holding a marginal edge solely due to focus mode support. For the overwhelming majority of users, the software experience on both devices will be indistinguishable in day-to-day use.

Battery capacity is where the Xiaomi 15 Ultra asserts a clear structural advantage: its 6000 mAh cell is 700 mAh larger than the Poco F7 Ultra's 5300 mAh — roughly a 13% increase. All else being equal, that translates directly into more screen-on time before reaching for a cable, a meaningful buffer for heavy users who push their phone through a full day of demanding tasks.

Charging tells a more nuanced story. The Poco F7 Ultra flips the script with 120W wired fast charging versus the 15 Ultra's 90W, meaning the Poco can replenish its smaller battery faster from a wall outlet — a genuine advantage for users who charge in short bursts. Wireless charging, however, favors the 15 Ultra at 80W compared to the Poco's 50W, making cable-free top-ups significantly quicker on the flagship. The 15 Ultra also supports reverse wireless charging, allowing it to act as a pad for other Qi-compatible devices — a convenience feature the Poco entirely lacks.

Weighing everything, the Xiaomi 15 Ultra has the stronger battery profile overall. Its larger capacity provides a longer baseline endurance, its wireless charging speed is substantially faster, and reverse wireless charging adds versatile utility. The Poco F7 Ultra's faster wired charging is a real-world advantage in time-pressed situations, but it does not offset the 15 Ultra's broader set of battery strengths.

Audio is the rare category where these two phones are in complete lockstep. Both omit a 3.5 mm headphone jack, ship with stereo speakers, and support an identical wireless audio codec stack: aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC. That last pairing is particularly noteworthy — aptX Lossless enables bit-perfect CD-quality audio over Bluetooth with compatible headphones, while LDAC transmits at up to 990 kbps for high-resolution wireless listening. Neither phone has an FM radio.

This is a complete tie. There is no differentiator to analyze here — a user's audio experience, whether through the speakers or wireless headphones, will be determined entirely by factors outside the spec sheet, such as Xiaomi's speaker tuning and amplifier hardware, which are not captured in the provided data.

Across the core connectivity stack, these two phones are virtually indistinguishable. Both support 5G, Wi-Fi 7, Bluetooth 6, NFC, dual SIM, and USB Type-C, and both hit identical peak speeds of 10,000 Mbps down and 3,500 Mbps up. The sensor suite is also largely shared: fingerprint scanner, GPS with Galileo support, gyroscope, accelerometer, compass, and an infrared sensor for remote control functionality all appear on both devices.

Two features separate them, and both belong exclusively to the Xiaomi 15 Ultra. First, emergency SOS via satellite — the ability to send distress signals in areas with no cellular coverage — is a genuine safety differentiator that has real consequences in remote or off-grid scenarios. Second, the 15 Ultra includes a barometer, which enables accurate altitude readings and supports weather-sensing applications; the Poco F7 Ultra omits it entirely.

The Xiaomi 15 Ultra takes this group on the strength of those two additions. Neither feature affects everyday urban connectivity, but satellite SOS in particular is the kind of capability that matters precisely when nothing else works — making it a meaningful, if situational, advantage over the Poco F7 Ultra.

The miscellaneous spec group offers nothing to separate these two devices. Both include a video light, and neither features a sapphire glass display, a curved screen, or an e-paper display. This is a complete tie — there is no differentiator present in the provided data, and no conclusion beyond parity can be drawn.