Nothing Phone (3a) Pro VS Realme P3 Ultra 5G

The most meaningful design divergence between these two phones lies in water protection. The Realme P3 Ultra 5G carries an IP68 rating, meaning it can withstand submersion in fresh water — typically up to 1.5 meters for 30 minutes. The Nothing Phone (3a) Pro, rated IP64, is only protected against water splashes and jets, not submersion. In practice, this distinction matters if you're near pools, rain, or sinks: the Realme can survive an accidental drop in water, while the Nothing cannot.

The physical form factor also tilts clearly toward the Realme. At 183 g and 7.4 mm thick, it is noticeably lighter and slimmer than the Nothing Phone (3a) Pro, which weighs 211 g and measures 8.4 mm thick. A 28-gram difference is perceptible in one-handed use over extended periods, and a 1 mm difference in thickness affects how the phone sits in a pocket and feels in the hand. Neither phone has a rugged build or a folding form factor, so those dimensions are a tie.

Overall, the Realme P3 Ultra 5G holds a clear advantage in this category — it offers superior water resistance and a more refined, lightweight chassis. The Nothing Phone (3a) Pro's IP64 rating and heavier build are real trade-offs that users should weigh, particularly those who prioritize durability and everyday comfort.

Both phones use an OLED/AMOLED panel with a 120Hz refresh rate, so the baseline display experience — deep blacks, vibrant colors, and smooth scrolling — is shared ground. The key differentiator is pixel density: the Realme P3 Ultra 5G packs 446 ppi into its 6.67″ screen, versus 387 ppi on the Nothing Phone (3a) Pro's slightly larger 6.77″ panel. That 59 ppi gap is genuinely visible at normal viewing distances, translating to crisper text and finer detail in images and video.

Where the Nothing Phone (3a) Pro reclaims ground is in HDR support and Always-On Display. It supports both HDR10 and HDR10+, meaning compatible streaming content will render with a wider dynamic range and more accurate highlights. The Realme supports neither standard. Add to that the Nothing's Always-On Display capability — a useful convenience feature for glanceable notifications and time — which the Realme also lacks.

This is a genuine trade-off rather than a clean win for either side. The Realme P3 Ultra 5G has the sharper panel, which benefits everyday use across apps, browsing, and photos. The Nothing Phone (3a) Pro counters with richer HDR content playback and Always-On Display functionality. Sharpness-first users lean Realme; media and convenience-focused users lean Nothing.

On paper, both phones match on storage, RAM count, process node, and thread count — but the silicon inside tells a very different story. The Realme P3 Ultra 5G runs the MediaTek Dimensity 8350, whose CPU cores clock significantly higher (up to 3.35 GHz on the prime core) compared to the Nothing Phone (3a) Pro's Snapdragon 7s Gen 3 topping out at 2.5 GHz. Benchmark results reflect this decisively: the Realme scores roughly 1,450,000 on AnTuTu versus 750,673 for the Nothing — nearly double — and its Geekbench 6 multi-core result of 4,700 dwarfs the Nothing's 3,239.

The memory subsystem gap is just as striking. The Realme's RAM runs at 8533 MHz with a maximum bandwidth of 68.2 GB/s, while the Nothing's operates at 3200 MHz with 25.6 GB/s — less than half the throughput. In practice, higher memory bandwidth means the GPU and CPU can feed and drain data faster, which benefits multitasking, gaming, and any workload involving large assets. The Realme also supports up to 24 GB of maximum RAM versus 16 GB on the Nothing, giving it more headroom for future configurations.

The Realme P3 Ultra 5G holds an unambiguous and substantial advantage in performance. The gap here is not marginal — it represents a full tier of difference in real-world responsiveness, gaming capability, and sustained workload handling. Users who prioritize raw processing power will find the Realme to be the clear choice in this category.

The rear camera systems diverge in meaningful ways. The Nothing Phone (3a) Pro fields a triple-lens setup — 50 + 50 + 8 MP — and crucially includes 3x optical zoom, which uses dedicated optics to magnify subjects without degrading image quality. The Realme P3 Ultra 5G lists 0x optical zoom, meaning any zoom it offers is digital, which crops and interpolates the sensor data rather than magnifying it optically. For portrait photography, wildlife, or simply reaching across a room, this is a tangible real-world disadvantage for the Realme. The Nothing also supports RAW shooting, giving photography enthusiasts uncompressed image data for post-processing — a feature the Realme lacks entirely.

The Realme counters in two specific areas. Its main camera records video at 4K@60fps, doubling the Nothing's 4K@30fps ceiling — a meaningful upgrade for anyone capturing fast motion or wanting smoother footage for editing. On the front, the Nothing's 50 MP selfie camera is a clear step above the Realme's 16 MP sensor, capturing far more detail and offering more flexibility for cropping selfies without significant quality loss.

Taken together, the Nothing Phone (3a) Pro holds the broader camera advantage for stills — optical zoom and RAW support are features that directly expand what's photographically possible. The Realme edges ahead only in video frame rate and shares no other compensating strengths in this category. Users who shoot photos more than video will find the Nothing's system more versatile.

Rarely does a spec group produce a result this definitive: every single data point provided for the Operating System category is identical between the Nothing Phone (3a) Pro and the Realme P3 Ultra 5G. Both run Android 15, both support the same privacy controls, productivity features, and customization options — from dynamic theming and split-screen to on-device machine learning and offline voice recognition.

This is a complete tie. Based strictly on the provided specs, no advantage exists for either product in this category. Users can expect the same foundational Android feature set regardless of which device they choose.

Battery is another category where the Realme P3 Ultra 5G pulls ahead on both dimensions that matter. Its 6000 mAh cell is a full 20% larger than the Nothing Phone (3a) Pro's 5000 mAh pack — a gap large enough to translate into meaningfully longer screen-on time across a typical day, and a genuine buffer for heavy users who struggle to reach a charger by evening.

Charging speed compounds that advantage. The Realme supports 80W fast charging versus the Nothing's 50W, meaning it can replenish its larger battery in considerably less time. In practical terms, a short charging window — say, during a commute or a meal break — will restore more usable battery on the Realme than on the Nothing. Neither phone offers wireless charging, so that shared omission is a non-factor in differentiating them.

The Realme P3 Ultra 5G wins this category cleanly. More capacity and faster wired charging together make it the stronger choice for users who prioritize battery endurance and quick top-ups, with no compensating advantage on the Nothing's side based on the provided data.

The audio specs for these two phones are identical across every provided data point. Both feature stereo speakers and forgo a 3.5mm headphone jack, LDAC, aptX Lossless, and a built-in radio. There is nothing in the provided data to distinguish one from the other in this category.

This is a complete tie. Neither phone holds any audio advantage over the other based on the available specifications.

Connectivity is the third category in this comparison to produce an outright tie. Every provided spec — from 5G support and Wi-Fi 6 to Bluetooth 5.4, NFC, dual SIM, USB Type-C, and the full sensor suite — is identical between the Nothing Phone (3a) Pro and the Realme P3 Ultra 5G. Both also share the same limitations: no external memory slot, no infrared sensor, and USB 2.0 speeds on their Type-C ports.

Based strictly on the provided data, this is a complete tie. Neither phone offers a connectivity or features advantage over the other, and users can expect an equivalent experience in this category whichever device they choose.

The Miscellaneous category offers no differentiating information between these two phones. Every spec provided — including a video light, the absence of a sapphire glass display, a flat (non-curved) screen, and no e-paper display — is identical for both the Nothing Phone (3a) Pro and the Realme P3 Ultra 5G.

This is a complete tie. The provided data yields no advantage for either product in this category.