Xiaomi Poco F7 Ultra VS Xiaomi Redmi K90 Pro Max

Both the Poco F7 Ultra and the Redmi K90 Pro Max share the same waterproofing credentials — IP68 certification — meaning both can withstand submersion in water under the same standardized conditions. Neither offers a rugged build or a folding form factor, so they are on equal footing in those respects.

Where the designs diverge is in their physical proportions. The Redmi K90 Pro Max is the larger and heavier device, measuring 163.3 × 77.8 mm and weighing 218 g, compared to the Poco F7 Ultra at 160.3 × 75 mm and 212 g. In practical terms, the F7 Ultra will feel more compact and slightly easier to handle one-handed, a meaningful difference for users sensitive to phone size. The K90 Pro Max is also thinner at 7.9 mm versus 8.4 mm, which gives it a sleeker profile despite its larger footprint — a classic trade-off between screen real estate and ergonomic comfort.

Overall volume is nearly identical (~100.99 cm³ vs ~100.37 cm³), confirming that the size differences are modest rather than dramatic. The Poco F7 Ultra holds a slight edge for one-handed usability and grip comfort, while the Redmi K90 Pro Max counters with a slimmer feel in the pocket. Neither phone dominates this category outright; the choice here comes down to personal preference between compactness and a thinner profile.

The display category is where a meaningful gap opens up between these two phones. Both use OLED/AMOLED panels with identical 120Hz refresh rates and 480Hz touch sampling, and both support the full suite of HDR standards — HDR10, HDR10+, and Dolby Vision — along with Always-On Display. The panel technology and feature parity are strong across the board.

The critical differentiator is sharpness. The Poco F7 Ultra packs a 1440 × 3200 px resolution into a 6.67″ screen, yielding a pixel density of 526 ppi — a genuinely high-fidelity result where individual pixels are essentially invisible to the naked eye. The Redmi K90 Pro Max offers a larger 6.9″ screen but at 1200 × 2608 px, landing at only 416 ppi. That 110 ppi gap is perceptible in real-world use, especially in fine text rendering, detailed photography, and VR-style content. The K90 Pro Max's screen is bigger, but the F7 Ultra's is noticeably crisper.

For users who prioritize immersive screen size, the K90 Pro Max offers more surface area for media consumption. But on the whole, the Poco F7 Ultra holds a clear display edge — its substantially higher pixel density makes it the sharper, more refined panel, and that advantage is meaningful for any user who values visual fidelity over raw screen real estate.

Chipset generation is where the performance story diverges sharply. The Poco F7 Ultra runs on the Qualcomm Snapdragon 8 Elite, while the Redmi K90 Pro Max steps up to the Snapdragon 8 Elite Gen 5 — a newer iteration of the same architecture that brings tangible gains across the board. The CPU peaks at 4.6 GHz on the K90 Pro Max versus 4.32 GHz on the F7 Ultra, and the GPU clock runs at 1200 MHz compared to 1100 MHz. These are not minor refinements; they compound into a measurable real-world performance gap.

The benchmark numbers make that gap concrete. The K90 Pro Max posts an AnTuTu score of 4,350,000 against the F7 Ultra's 2,580,490 — a roughly 69% advantage — and leads in Geekbench 6 as well, with a multi-core score of 10,059 versus 8,887 and a single-core score of 3,234 versus 2,970. For gaming, 3D rendering, and AI-accelerated tasks, this translates to noticeably smoother sustained performance under heavy load. Both share identical RAM at 16GB LPDDR5, the same memory bandwidth, and the same thermal envelope at 8.2W TDP, meaning the efficiency architecture is comparable — the K90 Pro Max simply does more within the same power budget.

Storage also tips in the K90 Pro Max's favor, offering 1TB base storage versus 512GB on the F7 Ultra — a practical advantage for power users who accumulate large media libraries or install many apps. Taken together, the Redmi K90 Pro Max holds a clear and substantial performance edge in this category, making it the stronger choice for users who demand top-tier processing headroom.

Telephoto capability is where the camera systems diverge most decisively. The Redmi K90 Pro Max offers 5x optical zoom with a focal range extending to 115 mm, while the Poco F7 Ultra tops out at 2.5x optical zoom and 60 mm. That difference is not marginal — it places the two phones in distinct leagues for portrait compression, wildlife, and distant subject photography. The K90 Pro Max also upgrades the tertiary lens to a full 50 MP sensor (versus 32 MP on the F7 Ultra), ensuring that zoom shots retain far more detail and cropping flexibility.

Beyond reach, the K90 Pro Max adds several features absent on the F7 Ultra. RAW shooting support is a significant advantage for photographers who want full post-processing control over their images — the F7 Ultra lacks this entirely. Laser autofocus on the K90 Pro Max provides an additional focusing mechanism that improves lock speed in low-contrast or dimly lit scenes. On the video side, the K90 Pro Max records 8K footage at 30 fps versus the F7 Ultra's 24 fps, a meaningful step up for cinematic quality and frame flexibility in editing. The F7 Ultra does counter with a slightly wider main aperture at f/1.6 versus f/1.7, which offers a marginal low-light edge on the primary sensor alone.

Across nearly every meaningful camera dimension — zoom range, sensor resolution uniformity, RAW capture, autofocus versatility, and video frame rate — the Redmi K90 Pro Max holds a clear and well-rounded advantage. It is the stronger camera system for users who shoot diverse subjects and demand professional-grade flexibility.

Across the entire operating system feature set, these two phones are virtually identical — every privacy control, productivity feature, and system capability listed is shared by both. The one and only differentiator is the Android version: the Poco F7 Ultra ships with Android 15, while the Redmi K90 Pro Max launches on Android 16. That single generation gap is worth noting, as a newer Android version typically brings refined system-level privacy controls, performance optimizations, and API improvements that app developers can leverage over time.

Neither phone receives direct OS updates from Google, meaning both depend on Xiaomi's own update cadence — a factor that applies equally and does not shift the balance between them. The shared feature set is otherwise comprehensive: both support split-screen multitasking, Picture-in-Picture, dynamic theming, on-device machine learning, and a full suite of privacy tools including camera and microphone access controls and app tracking blocks.

Given the near-total feature parity, the Redmi K90 Pro Max holds a narrow but real software edge by virtue of launching on a more current Android version. For users who care about having the latest platform foundations from day one, this matters — but it is a modest advantage in a category that is otherwise a draw.

Raw battery capacity is the headline here, and the gap is substantial. The Redmi K90 Pro Max packs a 7560 mAh cell — over 42% larger than the 5300 mAh battery in the Poco F7 Ultra. In practical terms, that translates to significantly more screen-on time between charges, a meaningful advantage for heavy users, travelers, or anyone who regularly goes a full day without access to a charger. A battery of that size also tends to degrade more gracefully over years of charge cycles, since it spends proportionally less time at full stress relative to its total capacity.

Charging speed slightly favors the F7 Ultra at 120W wired versus 100W on the K90 Pro Max — but context matters here. Refilling a 5300 mAh cell at 120W and a 7560 mAh cell at 100W means the absolute charge times may not differ dramatically, and the K90 Pro Max's larger reservoir means it needs to be topped up less frequently in the first place. Both phones match on 50W wireless charging, which is a strong wireless standard. The K90 Pro Max also adds reverse wireless charging, allowing it to act as a charging pad for accessories like earbuds — a feature entirely absent on the F7 Ultra.

On balance, the Redmi K90 Pro Max wins this category convincingly. Its enormous battery advantage, combined with reverse wireless charging, makes it the clear choice for users who prioritize endurance and charging versatility over the marginal wired speed edge the F7 Ultra holds.

Both phones drop the 3.5mm headphone jack and offer stereo speakers, making them equal for casual wired and built-in audio use. But for wireless audio quality, the gap between them is stark. The Poco F7 Ultra supports a comprehensive stack of high-resolution Bluetooth codecs — aptX, aptX HD, aptX Adaptive, aptX Lossless, and LDAC — while the Redmi K90 Pro Max supports none of them.

This distinction matters significantly for audiophiles and anyone who uses premium wireless headphones. Standard Bluetooth audio (SBC/AAC) compresses audio considerably; codecs like LDAC and aptX Lossless transmit at much higher bitrates, preserving detail, dynamic range, and spatial accuracy that SBC simply cannot deliver. With the K90 Pro Max, even a pair of high-end wireless headphones capable of lossless Bluetooth audio will be bottlenecked to a lower-quality stream. The F7 Ultra unlocks the full potential of such hardware.

This is one of the most one-sided category results in this comparison. For speaker-only listeners the difference is moot, but for anyone who regularly uses quality wireless headphones, the Poco F7 Ultra holds an unambiguous and significant advantage in audio.

Connectivity is largely a shared story between these two phones — both offer 5G, dual SIM, NFC, USB Type-C, Wi-Fi 7, identical peak download and upload speeds, and the same sensor suite including GPS, gyroscope, compass, infrared, and accelerometer. For the vast majority of everyday connectivity tasks, users of either device will have an equivalent experience.

Two specifications break the tie, both favoring the Poco F7 Ultra. First, it supports Wi-Fi 6E in addition to Wi-Fi 7, adding access to the 6 GHz band — useful in environments where 2.4 GHz and 5 GHz bands are congested, offering lower latency and less interference. The K90 Pro Max's Wi-Fi stack jumps from Wi-Fi 6 directly to Wi-Fi 7 without 6E, a minor but real omission in dense network environments. More meaningfully, the F7 Ultra ships with Bluetooth 6 versus Bluetooth 5.4 on the K90 Pro Max. Bluetooth 6 introduces Channel Sounding for improved distance and positioning accuracy, along with further efficiency and latency refinements — advantages that compound when paired with compatible accessories.

Neither phone is connectivity-deficient by any measure, and for most users the real-world difference will be subtle. That said, the Poco F7 Ultra holds a modest but clear edge here, with a more current Bluetooth standard and broader Wi-Fi band coverage giving it a slight future-proofing advantage in this category.

The miscellaneous feature set for these two phones is identical across every data point provided. Both include a video light, and neither features sapphire glass, a curved display, or an e-paper display. There is simply no differentiator to analyze here.

This category is a complete tie. Prospective buyers should weigh the other specification groups — performance, cameras, battery, and audio in particular — when making their decision, as this group offers no grounds for preference either way.