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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →The realme P4x 5G is the better fit if you want the higher stated chipset tier and a sharper FHD+ screen. The realme NARZO 100X 5G prioritizes a larger 8,000mAh battery, higher claimed peak brightness and IP65 dust and water resistance. In a 91mobiles Amazon India price snapshot accessed October 4, 2026, the P4x was ₹1,300 more expensive; retailer prices can change.
Specs at a glance
| Specification | realme P4x 5G | realme NARZO 100X 5G |
|---|---|---|
| Chipset | MediaTek Dimensity 7400 Ultra | MediaTek Dimensity 6300 |
| Display | 6.72-inch FHD+ LCD, 1080 × 2400, 144Hz; 1,000-nit peak brightness claim | 6.81-inch HD+ display, 720 × 1570, 144Hz; 1,200-nit peak brightness claim |
| Battery | 7,000mAh | 8,000mAh |
| Charging | 45W | 45W |
| Cooling and protection | 5,300mm² vapor chamber; realme also makes a military-grade durability claim | 5,300mm² vapor chamber; IP65 dust and water resistance and MIL-STD-810H shock-resistance claim |
| Storage and camera details in cited pages | UFS 3.1 storage and a 50MP camera are listed; check the exact variant before buying | Official page lists up to 256GB storage; comparison listing reports a 50MP rear camera |
| Amazon India price snapshot | ₹21,299 | ₹19,999 |
Specifications are from realme’s P4x product page and NARZO 100X product page, with comparison details from 91mobiles. Prices are 91mobiles’ Amazon India snapshots accessed October 4, 2026, not guaranteed live offers or official launch prices.
Which phone has the stronger performance specifications?
Chipset and benchmark claims
The P4x lists a Dimensity 7400 Ultra, while the NARZO 100X lists a Dimensity 6300, making the P4x the stronger choice on the published chipset specifications. realme advertises a 780,000+ AnTuTu score for the P4x; its NARZO 100X page shows 631,720. These are vendor-published figures, not independent head-to-head results, and test environments or calculation methods can affect comparisons. realme cautions that actual benchmark results may vary.
Cooling
Both phones list a 5,300mm² vapor chamber. That shared specification alone does not establish which device stays cooler or sustains performance better during extended gaming or other heavy workloads; the cited pages provide no equivalent independent thermal test.
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- 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.
How do their displays differ?
Both advertise a 144Hz refresh rate, but their resolutions and brightness claims differ. The P4x’s listed 1080 × 2400 FHD+ resolution is higher than the NARZO 100X’s 720 × 1570 HD+ resolution, so the P4x has the advantage on paper for image sharpness. The NARZO 100X has the slightly larger listed screen and the higher claimed peak brightness: 1,200 nits versus the P4x’s 1,000-nit peak claim. Brightness figures are manufacturer specifications, not a guarantee of identical real-world visibility.
Which has the longer-lasting battery?
The NARZO 100X has the larger stated capacity: 8,000mAh against the P4x’s 7,000mAh. Both list 45W charging. Capacity by itself does not show how many hours either phone will last; screen settings, network conditions, apps and workload all affect runtime. realme’s NARZO 100X product page says, “Data comes from realme Lab. Actual results may vary.” The cited material does not provide an independent, like-for-like battery endurance test.
What protection do the phones offer?
realme specifies IP65 dust and water resistance for the NARZO 100X and also makes a MIL-STD-810H shock-resistance claim. IP65 is a specific resistance rating; it is not a claim that the phone is waterproof. The P4x page makes a military-grade durability claim, but the cited specifications do not establish an equivalent IP rating for it. Check each manufacturer page for the precise terms and conditions of its claims.
What is the price difference?
In 91mobiles’ Amazon India snapshots accessed October 4, 2026, the P4x was listed at ₹21,299 and the NARZO 100X at ₹19,999, making the P4x ₹1,300 more expensive at that time. These are volatile retailer listings, not stable prices. Before ordering, compare the live listings for the same RAM and storage configuration, seller, coupons and delivery terms.
Rank #3
- 6.72 inches, IPS LCD, 1080 x 2400 pixels
- 128GB Storage, 4GB RAM
- Android 15, Realme UI 6.0, Mediatek Dimensity 7400 Ultra (4 nm), Octa-core (4x2.6 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55)
- Rear: 50 MP, f/1.8, (wide), PDAF, Auxiliary lens, Front: 8 MP, f/2.0, (wide)
- 165.9 x 76 x 8.4 mm (6.53 x 2.99 x 0.33 in), 208 g (7.34 oz)
Which one should you buy?
Choose the realme P4x 5G if
- You prioritize the higher-tier stated chipset.
- You want the higher listed FHD+ screen resolution.
Choose the realme NARZO 100X 5G if
- You prioritize a larger stated battery capacity.
- You prefer its higher claimed peak brightness or want its stated IP65 dust and water resistance.
- Its lower price in the cited snapshot matches the price and configuration you find when shopping.
The cited material does not settle camera quality, software update commitments, sustained thermal performance or real-world battery runtime with equivalent independent evidence. If one of those is your deciding factor, these specifications alone do not identify a winner.
Quick Recap
Rank #4
- 167.2 x 76.6 x 7.9 mm (6.58 x 3.02 x 0.31 in)
- 201 g (7.09 oz)
- 6.74 inches, IPS LCD, 720 x 1600 pixels
- 128GB Storage, 4GB RAM, microSDXC (uses shared SIM slot)
- Android 15, Realme UI 5.0, Unisoc T7250 (12 nm), Octa-core (2x1.8 GHz Cortex-A75 & 6x1.6 GHz Cortex-A55)
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.
