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The realme P4x is the stronger fit if battery capacity and fast charging come first: realme specifies a 7,000mAh battery and 45W charging. The Ai+ Nova 2 Ultra 5G is more appealing on published specifications if you want an AMOLED display and an 8MP ultrawide camera. Their Dimensity 7400-family chips look similar on paper, but available evidence does not establish a performance winner, and current prices need checking at retailers.
realme P4x vs Ai+ Nova 2 Ultra 5G: key specifications
| Specification | realme P4x | Ai+ Nova 2 Ultra 5G |
|---|---|---|
| Display | LCD, up to 144Hz; realme lists up to 1,000 nits peak brightness. [realme India] | 6.78-inch, 1.5K AMOLED; April 2026 launch coverage reports 144Hz and 2,500-nit peak brightness. 91mobiles instead lists 120Hz. [Business Remedies] [91mobiles] |
| Processor | MediaTek Dimensity 7400 Ultra 5G. [realme India] | MediaTek Dimensity 7400, reported as built on a 4nm process. [Business Remedies] |
| Rear cameras | 50MP main and 2MP secondary camera in comparison listings. [91mobiles] | 50MP Sony IMX752 main camera with OIS and 8MP ultrawide, according to launch coverage. [Business Remedies] |
| Front camera | 8MP, per comparison listings. [91mobiles] | 13MP, per comparison listings. [91mobiles] |
| Battery and charging | 7,000mAh and 45W Ultra Charge, specified by realme. [realme India] | 6,000mAh and 18W charging, as listed by comparison coverage; the charging figure is not confirmed by an official specification in the available sources. [91mobiles] |
| Software and support | Android 15; 91mobiles reports two years of OS upgrades and three years of security updates. [91mobiles] | Android 16 at launch; 91mobiles reports one year of OS upgrades and two years of security updates. An official Ai+ support-policy source was not available to confirm those durations. [Business Remedies] [91mobiles] |
| Price context | 91mobiles showed ₹21,939 on Amazon; another comparison listing showed ₹21,999. These are observed listings, not a confirmed current price. [91mobiles] [Gadgets 360] | 91mobiles showed ₹20,999 on Flipkart; another comparison listing showed ₹21,999 and an out-of-stock indicator. April 2026 launch coverage reported a starting price of ₹16,999, which is launch-era context, not a current quote. [91mobiles] [Gadgets 360] [Business Remedies] |
Specifications and prices above are for India-market models. Retail listings can change by date, seller, stock and memory configuration. Confirm the exact variant and checkout price before comparing.
Which phone has the better display?
The Nova 2 Ultra has the apparent advantage in panel type: launch coverage describes a 6.78-inch 1.5K AMOLED screen. AMOLED can offer deeper blacks and stronger contrast than an LCD, which may matter for video and dark interfaces. Its reported refresh rate is inconsistent: Business Remedies gives 144Hz, while 91mobiles lists 120Hz. Treat 144Hz as reported, not settled.
The P4x uses an LCD with a 144Hz maximum refresh rate, and realme lists 1,000-nit peak brightness. Secondary comparisons differ on some display details, so the manufacturer’s published figures are the safer reference for the P4x. A higher refresh-rate figure alone does not establish that one screen looks better; panel type, resolution, brightness and your viewing conditions all matter.
#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.
Which has better battery life and charging?
On capacity, the P4x leads with a manufacturer-specified 7,000mAh battery versus the Nova 2 Ultra’s reported 6,000mAh. The P4x also has officially listed 45W charging. Comparison coverage lists 18W for the Nova, but that figure lacks confirmation from an official Ai+ specification in the sources cited here.
Capacity and charging wattage are not a substitute for measured endurance or charging-time tests. No controlled side-by-side battery test is established here, so the larger P4x battery is a specification advantage rather than proof of a particular number of extra hours.
Which phone has the more useful cameras?
The clearest hardware distinction is the Nova 2 Ultra’s reported 8MP ultrawide camera, which offers a wider framing option than the P4x’s listed 2MP secondary rear camera. Launch coverage also identifies optical image stabilization (OIS) on the Nova’s 50MP Sony IMX752 main camera. The P4x has a 50MP main camera, and realme lists 4K video capability.
The Nova is also listed with a 13MP front camera, compared with 8MP for the P4x. Megapixel counts and camera components do not establish which phone takes better photos: image processing, focus, exposure and low-light performance matter too. No controlled photo comparison is established here.
Are their processors and performance comparable?
The P4x uses the Dimensity 7400 Ultra 5G; launch coverage lists the Nova 2 Ultra with a Dimensity 7400. 91mobiles reports the same 2.6GHz octa-core configuration and Mali-G615 MC2 GPU for both phones. That makes them look close on the listed core and GPU details, but it is not enough to declare equal real-world performance.
Realme claims a score of “780,000+ AnTuTu” for the P4x on its product page. This is a manufacturer claim, not an independent result, and the comparison evidence does not provide a corresponding Nova 2 Ultra score or a side-by-side test. It therefore cannot settle which phone is faster in games or everyday use.
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)
What do software support and durability tell you?
Android versions and support durations are reported differently for the two phones. 91mobiles lists the P4x with Android 15, two years of OS upgrades and three years of security updates; it lists the Nova 2 Ultra with Android 16, one year of OS upgrades and two years of security updates. The Nova durations are not confirmed by an official Ai+ policy source here, so check Ai+’s published support terms for the exact model before buying if update longevity is important.
The available specifications do not establish a verified durability comparison, such as matching water-resistance ratings or drop-test results. Do not infer ruggedness from battery size or other headline specifications.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How much do they cost, and which should you choose?
There is no dependable single current price difference to quote: comparison pages have shown different prices and stock states, and the Nova’s ₹16,999 figure is its April 2026 launch starting price rather than a live offer. Check the retailer listing for your intended configuration on the day you buy; compare the same RAM and storage tier, seller, warranty and availability.
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)
- Choose the realme P4x if your priorities are its officially specified 7,000mAh battery, 45W charging, 144Hz LCD, or realme’s listed 4K video capability.
- Consider the Ai+ Nova 2 Ultra if an AMOLED panel and a reported ultrawide camera matter more to you, and you can confirm the model’s current availability, price and charging specification.
- Do not choose on chipset names alone if gaming or sustained performance is decisive: the available material does not provide a comparable independent test.
Neither phone is a universal winner on these specifications. The better buy depends on which trade-off matters to you and the verified price of the configuration actually in stock.
Sources and launch context
Realme announced the P4x on November 26, 2025, ahead of its planned December 4, 2025 debut. [realme newsroom] The Nova 2 Ultra specifications and launch price cited above come from April 2026 launch coverage, while comparison-site prices and some specifications are secondary listings that may change or conflict.
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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.
