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The realme P4x 5G has the stronger listed chipset and sharper FHD+ display; the realme 15x 5G offers faster listed charging and a specified 50MP front camera. Both list a 7000mAh typical battery and a maximum 144Hz refresh rate. For India pricing, realme’s store showed the 15x 8GB+256GB at ₹27,999, but a current P4x price for a matching configuration was not confirmed—so there is no reliable price difference to calculate from these figures.
realme 15x vs realme P4x: specifications at a glance
The table compares the specifications published by realme India. These are manufacturer listings, not independent tests of speed, camera quality, or battery life.
| Specification | realme 15x 5G | realme P4x 5G |
|---|---|---|
| Chipset | MediaTek Dimensity 6300; 6nm; up to 2.4GHz | MediaTek Dimensity 7400 Ultra; 4nm octa-core; up to 2.6GHz |
| Display | 6.8-inch HD+ (1570 × 720), up to 144Hz; HBM 1200 nits | 6.72-inch FHD+, up to 144Hz; 1000 nits peak brightness listed |
| Battery and charging | 7000mAh typical, 6820mAh rated minimum; 60W SUPERVOOC | 7000mAh typical, 6830mAh rated; 45W Ultra Charge |
| Rear camera | 50MP Sony IMX852, f/1.8 | 50MP AI camera; product page advertises 4K video |
| Front camera | 50MP, f/2.4 | Details not stated on the captured product-page material |
| Storage and RAM | 128GB or 256GB storage; 6GB or 8GB RAM options | UFS 3.1; product page highlights 256GB and dynamic RAM |
| Software | realme UI 6.0 based on Android 15 | Based on Android 15 |
| Dust and water resistance | Official page advertises IP69 Pro; interpret the claim according to its rating conditions | IP64 listed; realme cautions that resistance may diminish with use |
See realme’s 15x 5G specifications and P4x 5G product page for the manufacturer’s full product details.
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Which phone has the better screen and chipset?
Display resolution
The P4x has the sharper listed panel: FHD+ on a 6.72-inch display. The 15x’s screen is slightly larger at 6.8 inches, but its resolution is HD+ (1570 × 720). Both are listed with a maximum refresh rate of 144Hz, so that headline figure does not separate them. A high refresh-rate ceiling does not by itself establish how consistently a phone sustains it across apps or settings.
Chipset
On paper, the P4x has the more capable chipset: a 4nm Dimensity 7400 Ultra, listed up to 2.6GHz, compared with the 6nm Dimensity 6300, listed up to 2.4GHz, in the 15x. The P4x page also promotes a cooling system and performance figures, but those figures are manufacturer lab or benchmark claims rather than independent measurements. The specifications alone cannot establish the phones’ real-world performance in a particular game or workload.
#1 Best Overall
- For USA Buyers : This Smartphone is compatible/will work with any GSM Networks such as AT&T, T-Mobile. For exact 2G GSM, 3G, 4G/LTE compatibility, please check with your network provider in advance prior to your purchase. This phone WILL NOT WORK with any CDMA Networks such as VERIZON, SPRINT, US CELLULAR.
- Dual-SIM, Network Compatibility, SIM CARD 1 AND 2 [2G : GSM 850 / 900 / 1800 / 1900 and/or 3G : WCDMA 800(B6) / 800(B19) / 850(B5) / 900(B8) / 1700|2100(B4) / 1900(B2) / 2100(B1) and/or 4G : LTE FDD 700(B12) / 700(B13) / 700(B17) / 700(B28) / 800(B20) / 850(B5) / 850(B18) / 850(B19) / 850(B26) / 900(B8) / 1700|2100(B4) / 1800(B3) / 1900(B2) / 2100(B1) / 2100(B66) / 2600(B7) : LTE TDD 2300(B40) / 2500(B41) / 2600(B38) and/or 5G : NR n1/2/3/5/7/8/20/26/28/38/40/41/77/78/66]
- 6.67 inches, IPS LCD, 720 x 1604 pixels
- 256GB Storage, 8GB RAM, microSDXC (uses shared SIM slot)
- Android 15, Realme UI 6.0, Mediatek Dimensity 6300 (6 nm), Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55)
Battery capacity and charging: what differs?
Both phones list a 7000mAh typical battery capacity. Their stated rated capacities are not identical: 6820mAh minimum for the 15x and 6830mAh for the P4x. The 15x lists 60W SUPERVOOC charging, versus 45W Ultra Charge on the P4x. These specifications indicate the advertised charging rates, not a guaranteed time to full charge; charging time and battery runtime depend on conditions and use. realme’s P4x page specifically notes that actual battery life depends on usage and lab data may fluctuate.
Camera and software differences
The 15x has a specifically listed 50MP front camera with an f/2.4 aperture. Its rear camera is a 50MP Sony IMX852 sensor with an f/1.8 aperture. The P4x product page lists a 50MP AI rear camera and advertises 4K video, but the front-camera details were not established in the captured page material. Megapixel counts and video-resolution claims do not determine image quality on their own.
The 15x is listed with realme UI 6.0 based on Android 15; the P4x is listed as based on Android 15. The available specifications do not establish a comparative software-support period or update schedule.
Rank #2
- 6.78 inches, AMOLED, 1B colors, 6.78 inches
- 256GB Storage, 8GB RAM
- Android 16, Mediatek Dimensity 7300 Max (4 nm), Mediatek Dimensity 7300 Max (4 nm)
- Rear: 200 MP, f/1.9, 23mm (wide), 1/1.56", 0.5µm, dual-pixel PDAF, OIS, 8 MP, 112˚, (ultrawide), 1/4.0", 1.12µm, Front: 50 MP, f/2.4, 23mm (wide), 1/2.88", 0.61µm
What is the realme 15x vs P4x price difference in India?
realme’s India store displayed the 15x 5G 8GB+256GB variant at ₹27,999, with ₹33,999 shown as MRP. This is an observed listing, not a permanent price or a price for every configuration; offers, exchange benefits, and the final checkout amount can vary. Check the realme India store listing before buying.
The official P4x product page used for this comparison did not show a current selling price. realme’s newsroom announced the P4x India launch for December 4, 2025, but that announcement does not establish today’s price. Without a current P4x listing for the same RAM and storage configuration, comparing its price with the 15x figure or calculating a price gap would be misleading. Check the current P4x product page and India launch announcement, then compare like-for-like variants and final checkout prices.
Which should you choose?
- Choose the P4x on listed hardware if FHD+ resolution, the Dimensity 7400 Ultra, UFS 3.1, or the manufacturer-advertised cooling system is your priority.
- Consider the 15x if you value its higher listed charging rate, slightly larger screen, or specified 50MP front camera. Its trade-off is HD+ resolution rather than FHD+.
- Compare actual prices before deciding on value. Match RAM and storage configurations, and use current checkout prices after offers rather than treating one observed listing as a stable market price.
Battery capacity alone cannot tell you which phone lasts longer, and specifications cannot settle differences in real-world speed or camera results. Those questions require comparable testing under the same conditions.
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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.
