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The realme P4 5G is the stronger paper choice for display resolution, chipset specifications and rated charging speed; the realme 15x 5G offers a slightly larger screen and a higher-resolution selfie camera. Both list a 7000mAh typical battery and 50MP main rear camera. A reliable current price difference cannot be established from the available price snapshots, so compare the same RAM and storage variant before buying.

realme P4 vs realme 15x: key specifications

The figures below come from realme India’s [P4 5G specifications](https://www.realme.com/in/realme-p4-5g/specs) and [15x 5G specifications](https://www.realme.com/in/realme-15x-5g/specs). They describe listed hardware and capabilities, not independently tested performance, battery life or camera quality.

Specification realme P4 5G realme 15x 5G
Chipset MediaTek Dimensity 7400 Ultra 5G; 4nm; octa-core up to 2.6GHz MediaTek Dimensity 6300; 6nm; up to 2.4GHz
Display 6.77-inch HyperGlow AMOLED; 1080 × 2392; up to 144Hz 6.8-inch display; 1570 × 720; up to 144Hz
Listed brightness 1600 nits HBM; 4500 nits peak 1200 nits HBM
Memory and storage variants 6GB/128GB, 8GB/128GB and 8GB/256GB listed; UFS 3.1 storage 6GB/128GB, 8GB/128GB and 8GB/256GB listed
Rear cameras 50MP OV50D40 main + 8MP wide-angle; video up to 4K at 30fps listed 50MP Sony IMX852 main
Front camera 16MP 50MP
Battery capacity 7000mAh typical; 6830mAh minimum 7000mAh typical; 6830mAh minimum
Phone charging rating 80W Ultra Charge 60W SUPERVOOC Charge
Software listed realme UI 6.0 based on Android 15 not stated in the cited specification extract (realme India, [15x 5G specifications](https://www.realme.com/in/realme-15x-5g/specs))

Which phone has better performance specifications?

The P4’s Dimensity 7400 Ultra, 4nm process and listed peak CPU frequency of 2.6GHz make it the more performance-oriented specification on paper than the 15x’s Dimensity 6300, 6nm and up-to-2.4GHz listing. That is an inference from the manufacturers’ platform details, not proof of a particular speed gap: the available information does not include standardized benchmark results or independent sustained-load testing.

Both phones are listed with 6GB or 8GB RAM and 128GB or 256GB storage. The P4 specification page identifies UFS 3.1 storage; the cited 15x extract does not specify a storage standard.

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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
  • Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
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Which display is better for reading and video?

The P4 has a 1080 × 2392 AMOLED panel, while the 15x has a 1570 × 720 display. The P4 therefore has substantially higher stated resolution and AMOLED technology, useful advantages to consider for fine text and detailed content. The 15x is marginally larger at 6.8 inches versus 6.77 inches, a difference of 0.03 inch. Both list a maximum refresh rate of 144Hz.

Realme lists the P4 at 1600 nits HBM and 4500 nits peak brightness; for the 15x it lists 1200 nits HBM. Because the P4’s peak figure and the HBM figures are different labels, they should not be treated as directly equivalent brightness measurements.

Rank #2
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Camera comparison: rear and selfie specifications

Each phone lists a 50MP primary rear camera. The P4 adds an 8MP wide-angle rear camera and lists rear video recording up to 4K at 30fps. The 15x specification names a Sony IMX852 50MP rear camera. On the front, the 15x lists 50MP against the P4’s 16MP.

These numbers describe resolution and listed camera hardware, not the quality of actual photos or video. No independently tested image samples are established here, so megapixel counts alone do not settle which phone takes better pictures.

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Rank #3
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Battery capacity and charging

Realme lists a 7000mAh typical battery (6830mAh minimum) for each model. The P4 is rated for 80W Ultra Charge and the 15x for 60W SUPERVOOC. Both specification pages say an 80W adapter is included in the box, but the 15x’s phone charging rating remains 60W. These are manufacturer specifications; no battery endurance or charging-time test is established here.

Software and connectivity notes

The P4 specification page lists realme UI 6.0 based on Android 15, along with Wi-Fi 5 / Wi-Fi 6 support and Bluetooth 5.4. The cited 15x specification extract does not establish an OS version or software-update commitment, so it is not enough to declare a software-support winner. Both are 5G phones; which bands and services work in practice depends on the operator and its network deployment.

Rank #4
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  • Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
  • Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
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Price difference: compare matching variants, not search snapshots

A 91mobiles [P4 vs 15x comparison](https://www.91mobiles.com/compare/Realme/P4/vs/realme/15x.html) surfaced conflicting price snapshots: one showed the P4 at ₹20,999 marked out of stock and the 15x at ₹24,990; another showed the P4 at ₹30,299 and the 15x at ₹24,990. Those inconsistent results do not establish a dependable current price difference.

For a useful comparison, check live India listings for the same RAM and storage configuration on the day you plan to buy. Note whether a displayed price depends on a bank offer, exchange deal or other condition; compare the final price you can actually pay. The [realme P4 5G product page](https://www.realme.com/in/realme-p4-5g) and [realme 15x 5G product page](https://www.realme.com/in/realme-15x-5g) identify the models, but the cited material does not establish a stable authoritative price for either phone.

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Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
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  • Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
  • Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
  • HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
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Which one should you choose?

  • Choose the P4 on specifications if AMOLED and higher resolution, the more performance-oriented listed chipset, a wide-angle rear camera, or the 80W phone charging rating matter most.
  • Consider the 15x if a 50MP front-camera specification or its slightly larger display is more relevant to you.
  • Decide value by live matched prices. Check identical RAM and storage configurations and account for offer conditions rather than relying on the conflicting comparison-page snapshots.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.