Realme P3 Ultra 5G VS Realme P4 Pro 5G

In terms of physical form, both phones are non-folding slabs with no rugged build, but the Realme P3 Ultra carries a meaningful edge in portability. At 183 g and 7.4 mm thick, it is noticeably lighter and slimmer than the Realme P4 Pro, which weighs 189 g and measures 7.7 mm. While these gaps may seem small on paper, a 6 g weight difference and 0.3 mm thickness reduction are perceptible during extended one-handed use or when pocketing the device throughout the day.

The most significant design differentiator, however, is water protection. The P3 Ultra holds an IP68 rating, meaning it is fully waterproof and can withstand submersion in fresh water up to a defined depth and duration. The P4 Pro, rated at IP66, is only protected against powerful water jets and heavy rain — it is not rated for submersion. In practical terms, the P3 Ultra can survive an accidental drop in a sink or pool; the P4 Pro cannot. This is a meaningful real-world distinction for users who want peace of mind near water.

Overall, the Realme P3 Ultra 5G holds a clear advantage in the Design category. It is lighter, thinner, and offers superior water protection — three factors that directly influence daily comfort and durability, with no trade-offs visible in the provided specs.

Both phones share an OLED/AMOLED panel foundation, ensuring deep blacks and vibrant colors on either device. Beyond that baseline, though, the Realme P4 Pro pulls ahead on nearly every display metric. Its 6.8″ screen, 1280 x 2800 px resolution, and 453 ppi pixel density all edge out the P3 Ultra's 6.67″, 1220 x 2712 px, and 446 ppi — though in practical use, the sharpness difference between 446 and 453 ppi is imperceptible to the naked eye. The slightly larger canvas of the P4 Pro is more noticeable when consuming video or browsing content.

Where the gap becomes more meaningful is in refresh rate and HDR support. The P4 Pro's 144Hz refresh rate delivers visibly smoother scrolling and animations compared to the P3 Ultra's 120Hz — a difference that is especially apparent in gaming and fast-paced UI interactions. Additionally, the P4 Pro supports both HDR10 and HDR10+, enabling richer dynamic range when streaming compatible content, while the P3 Ultra supports neither. The P4 Pro also includes an Always-On Display and branded damage-resistant glass, adding everyday convenience and a layer of scratch protection that the P3 Ultra lacks entirely.

The display category is a clear win for the Realme P4 Pro 5G. It offers a higher refresh rate, proper HDR certification, screen protection, and an Always-On Display — advantages that translate directly into a more premium and capable daily viewing experience.

Matching on several fundamentals — 12 GB of RAM, a 4 nm fabrication process, DDR5 memory, and DirectX 12 GPU support — the two phones diverge sharply once you look at the underlying silicon. The Realme P3 Ultra runs on the MediaTek Dimensity 8350, with peak CPU cores clocked at 3.35 GHz, while the Realme P4 Pro's Snapdragon 7 Gen 4 tops out at 2.8 GHz. That clock speed advantage, combined with a GPU running at 1400 MHz versus the P4 Pro's 1000 MHz, points to the P3 Ultra delivering meaningfully faster processing in CPU-intensive tasks and GPU-accelerated workloads like gaming or video rendering.

The memory subsystem gap is even harder to ignore. The P3 Ultra's RAM operates at 8533 MHz with a maximum memory bandwidth of 68.2 GB/s — more than double the P4 Pro's 4200 MHz and 33.6 GB/s. In practice, higher memory bandwidth directly benefits app loading times, multitasking responsiveness, and graphics-heavy scenarios where data needs to move rapidly between the CPU, GPU, and RAM. This is a substantial technical gap. The P4 Pro does counter with 512 GB of internal storage versus the P3 Ultra's 256 GB, which is a tangible advantage for users who store large media libraries or games locally.

For raw processing and graphics performance, the Realme P3 Ultra 5G holds a clear edge, backed by faster clocks, a quicker GPU, and dramatically higher memory bandwidth. The P4 Pro's lead in storage capacity is the one practical offset, but for users who prioritize performance, the P3 Ultra is the stronger choice in this category.

The rear camera systems are remarkably similar on paper: both phones feature a dual-lens setup anchored by a 50 MP main sensor, OIS, phase-detection autofocus, 4K 60fps video recording, and an identical manual controls toolkit. The P4 Pro adds a secondary 2 MP lens alongside its main sensor, though a 2 MP auxiliary camera typically serves a limited depth-sensing role rather than delivering standalone photographic value. For practical rear camera use, these two devices are closely matched.

The front camera is where a decisive gap emerges. The Realme P4 Pro sports a 50 MP selfie shooter, compared to the Realme P3 Ultra's 16 MP front camera — both sharing the same f/2.4 aperture. That resolution difference is substantial: 50 MP captures dramatically more detail, offering greater flexibility to crop selfies without quality loss and producing sharper results when viewed on larger screens or printed. For users who frequently video call, shoot selfies, or create content with the front camera, this is a meaningful real-world advantage.

Given how evenly matched the rear systems are, the front camera becomes the deciding factor in this category. The Realme P4 Pro 5G earns a clear edge here, driven entirely by its significantly higher-resolution selfie camera.

Rarely does a spec group tell such a clear story: the Realme P3 Ultra 5G and Realme P4 Pro 5G are running an identical software configuration across every single data point provided. Both ship with Android 15, share the same privacy controls — including location, camera, and microphone permissions — and offer the same feature set spanning dark mode, dynamic theming, split-screen multitasking, Picture-in-Picture, offline voice recognition, and on-device machine learning. Neither receives direct OS updates, and neither supports features like Wi-Fi password sharing, focus modes, or Quick Start.

This level of parity is a strong indicator that both devices are built on the same underlying software platform, almost certainly Realme's own Android skin, with no differentiation applied between the two models at the OS layer. For the user, this means the day-to-day software experience — from how notifications behave, to privacy dashboards, to multitasking gestures — will feel functionally identical on either device.

This category is an absolute tie. With every tracked specification matching exactly, the operating system offers no basis for choosing one device over the other, and buyers should look to other spec groups to inform their decision.

Charging infrastructure is identical across both devices: 80W wired fast charging, no wireless charging, and a non-removable battery. Where they diverge is capacity. The Realme P4 Pro packs a 7000 mAh battery versus the Realme P3 Ultra's 6000 mAh — a 1000 mAh difference that represents a 17% larger energy reserve. In real-world terms, that gap is significant enough to translate into several additional hours of screen-on time, making the P4 Pro notably more capable as a heavy-use or travel device where access to charging may be limited.

The shared 80W charging speed means both phones can replenish their batteries quickly, but the P4 Pro's larger cell will naturally take longer to reach a full charge from empty. For users who top up frequently throughout the day, this distinction matters less; for those who prefer fewer, longer charges, the P4 Pro's higher capacity is a genuine advantage.

The battery category goes to the Realme P4 Pro 5G. With a meaningfully larger battery and no trade-off in charging speed, it simply offers more endurance — a straightforward and practical win for users who prioritize longevity between charges.

Wired audio listeners will find no difference here — neither the Realme P3 Ultra nor the Realme P4 Pro includes a 3.5 mm headphone jack, and both offer stereo speakers for built-in playback. The sole differentiator in this category is wireless audio codec support: the P4 Pro includes LDAC, while the P3 Ultra does not.

LDAC is Sony's high-resolution Bluetooth audio codec, capable of transmitting up to three times more data than standard Bluetooth audio. For users with LDAC-compatible wireless headphones or earbuds, this translates into noticeably higher audio fidelity — closer to lossless quality — when streaming music. It is a feature that only matters if the user's headphones also support LDAC, but for audiophile-leaning users already invested in compatible gear, it is a meaningful distinction.

The Realme P4 Pro 5G takes this category on the strength of its LDAC support alone. The advantage is niche but real: users who prioritize high-quality wireless audio will find the P4 Pro the more capable device, while casual listeners unlikely to notice codec differences will find both phones equally sufficient.

Connectivity is the second category in this comparison — after the operating system — where the two devices are completely indistinguishable. The Realme P3 Ultra and Realme P4 Pro share an identical feature set: 5G, Wi-Fi 6, Bluetooth 5.4, NFC, dual SIM, USB Type-C with USB 2.0, and the same sensor suite including GPS, Galileo, gyroscope, accelerometer, and compass. Neither offers an external memory slot, infrared sensor, barometer, or any form of satellite communication.

The shared Bluetooth 5.4 ensures stable, low-latency wireless connections for peripherals and audio devices on both phones equally, while Wi-Fi 6 support means both are ready to take advantage of modern routers for faster, more efficient wireless throughput in congested environments. NFC is present on both, covering contactless payments and quick device pairing without distinction.

This category is a complete tie. Every tracked connectivity and sensor specification is identical, and there is no basis within the provided data to favor one device over the other. Buyers for whom connectivity features are a priority will find no reason to choose between these two phones on this criterion alone.

The Miscellaneous category covers a narrow set of supplementary hardware traits, and across all four tracked points, the Realme P3 Ultra and Realme P4 Pro are identical. Both include a video light, and neither features a sapphire glass display, a curved screen, or an e-paper panel.

None of the shared absences represent meaningful drawbacks at this market segment — sapphire glass and e-paper displays remain rare and typically reserved for niche or ultra-premium devices. The presence of a video light on both phones is a minor practical convenience for shooting video in low-light conditions, but again, neither device holds any advantage over the other here.

This is a complete tie with no differentiators in the provided data. As with connectivity, buyers should weigh other spec categories — where real distinctions do exist between these two devices — to guide their decision.