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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsFor India-market versions, the realme P4x 5G is the stronger fit on paper if you want a 5G chipset, a sharper 144Hz display and a highlighted 256GB storage option. The realme C100x lists a larger 8,000mAh typical battery and an entry 4GB+64GB configuration. A reliable current price gap is not established here, so check same-day listings for comparable variants before deciding on value.
India specifications at a glance
This comparison uses realme’s India product page for the P4x 5G and India specifications page for the C100x, accessed October 7, 2026. Specifications and available configurations can vary by region and SKU.
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realme C100 5G Smartphone 4+128GB Green | 6.8" 144Hz Display, 6600mAh Large Battery, 45W Fast... | $160.00 | Buy on Amazon |
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| Specification | realme P4x 5G (India) | realme C100x (India) |
|---|---|---|
| Chipset and network | Dimensity 7400 Ultra; marketed as 5G | T7250; the cited specification page does not establish 5G support |
| Display | 6.72-inch FHD+, up to 144Hz; 1,000 nits peak brightness stated by realme | 17.3cm, HD+ (720 × 1570), up to 120Hz; typical 700 nits and typical HBM 900 nits stated by realme |
| Battery | 7,000mAh | 8,000mAh typical; 7,780mAh rated |
| Charging | 45W | Up to 45W SUPERVOOC |
| Memory and storage | India page highlights 256GB UFS 3.1 and dynamic RAM; configurations may vary | 4GB RAM + 64GB storage listed; LPDDR4X and eMMC 5.1; memory card supported |
| Cameras | 50MP AI rear camera stated | 50MP rear and 5MP front cameras listed |
| Current India price | Not established; check a current listing for the exact SKU | Not established; check a current listing for the exact SKU |
Sources: realme India P4x 5G product page and realme India C100x specifications. These are manufacturer specifications, not independent test results. Brightness labels and descriptions differ between the pages, so they should not be treated as a controlled brightness comparison.
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What separates the two phones?
P4x 5G: screen resolution, refresh rate and stated 5G
The P4x has the more capable display specification on paper: FHD+ resolution and a maximum 144Hz refresh rate, against the C100x’s HD+ panel and maximum 120Hz rate. The P4x page also explicitly identifies a Dimensity 7400 Ultra chipset and markets the phone as 5G. These details make it the more straightforward choice between the two if a higher-resolution, smoother-refresh screen or 5G capability is a priority.
#1 Best Overall
- 144Hz High Refresh Rate Large Display – Equipped with a 6.8-inch high-definition LCD screen featuring a 144Hz ultra-smooth refresh rate, delivering fluent visual experience for daily browsing, video watching, gaming and social media. The large screen brings wider field of view and comfortable single-hand operation, effectively reducing screen stutter and eye fatigue during long-time use.
- 6600mAh Giant Battery & 45W Ultra Fast Charge – Built-in 6600mAh high-capacity durable battery supports all-day long-lasting battery life, easily meeting heavy usage needs of gaming, video playback and outdoor travel. 45W ultra-fast charging technology greatly shortens charging time, quickly replenishes power and eliminates low-battery anxiety for daily use.
- Powerful Dimensity 6300 5G Processor – Adopts MediaTek Dimensity 6300 high-performance 5G chip, with optimized operation algorithm and excellent heat dissipation performance. It ensures stable and smooth running of daily office apps, social software and mainstream mobile games, while supporting 5G full-network fast connection for ultra-fast downloading and network surfing.
- 50MP AI Dual Camera System – Comes with a 50MP high-definition rear main camera and 5MP front selfie camera. The intelligent AI imaging algorithm optimizes light, color and details automatically, enabling clear and vivid photos in bright daylight or low-light night environment. It supports portrait mode, panorama and multiple shooting modes to record wonderful moments easily.
- IP64 Waterproof & Dustproof & Practical Design – Features IP64 professional waterproof and dustproof rating, effectively resisting daily splashing water, sweat and fine dust, improving the phone’s durability and extending service life. Unlocked design supports global mainstream network bands, compatible with various operators, perfect for daily communication, travel and outdoor scenarios.
C100x: larger stated battery and entry configuration
The C100x page gives a higher battery capacity: 8,000mAh typical, with 7,780mAh rated. That is a larger stated capacity than the P4x’s 7,000mAh, but capacity alone does not prove longer battery life; screen settings, software, signal conditions and use all affect endurance. The C100x’s listed 4GB+64GB configuration is also more basic than the P4x page’s highlighted 256GB UFS 3.1 option. Compare the exact SKU and usable storage rather than assuming every version matches those headline configurations.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Does the C100x support 5G?
The cited C100x India specifications identify its chipset as T7250 but do not establish network support. The P4x India page explicitly markets 5G and names the Dimensity 7400 Ultra. Confirm the C100x’s network bands and 5G status from a current specification sheet for the exact India variant and seller listing before treating it as a 4G-only or 5G phone.
How to check the price difference fairly
No dependable, current price difference for matched India variants is established here. Prices, stock and offers change, and a headline price may depend on a bank discount, exchange deal or a different RAM-and-storage version. Compare listings on the same day and record the standard price separately from conditional discounts.
- Identify the exact RAM and storage variant for each phone; do not compare the C100x 4GB+64GB listing with a different P4x configuration without saying so.
- Check the realme India store and authorized India retailers for current availability and the listed seller.
- Compare the standard selling prices first. Then note bank, exchange or other conditional discounts separately, along with their eligibility terms.
- If matching variants are unavailable, state the configurations being compared and treat the price gap as a comparison of those specific offers, not the models in general.
Charging, cameras and other limits to the comparison
Both India pages state 45W-class charging: 45W for the P4x and up to 45W SUPERVOOC for the C100x. That shared maximum does not establish equal charging times, and the cited specifications do not establish whether the same charger is included with both exact SKUs. Check the in-box contents for the variant you plan to buy.
The listed camera figures—50MP rear on both, plus a 5MP front camera on the C100x page—do not show which phone takes better photos. Megapixel counts alone cannot establish image quality, and no comparable camera test is available here. The same caution applies to real-world battery life and performance: the cited pages provide specifications rather than independent, controlled results.
Check the region before buying
Do not mix specifications from different markets. realme’s global P4x page advertises an 8,000mAh battery, while the India P4x page specifies 7,000mAh. This comparison uses the India figure; confirm the market and exact model on any listing you consider.
Sources: realme global P4x product page; realme India P4x 5G product page.
Quick Recap
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.
