realme P4 Power Review: How Much Battery Is Too Much

Phones with massive batteries usually come with obvious compromises. They feel thick, heavy, or built around the battery first. Going into the realme P4 Power, that’s exactly what I expected.

But realme is trying to flip that idea. The P4 Power focuses almost entirely on endurance, yet it still aims to feel like a normal daily phone. On paper, a 10,001 mAh battery inside a 9.1 mm body already sounds ambitious. Now it comes down to real-world use.

So the question is simple. Does the P4 Power feel practical, or do the compromises show up immediately? Let’s find out in this review.

realme P4 Power Review: Unboxing

The realme P4 Power comes with the standard box contents: the phone itself, the 80W charger, USB-A to USB-C cable, a clear case, SIM ejector, and some paperwork.

realme P4 Power Review: Design and Build

The design of the realme P4 Power is hard to ignore, for better and for worse. realme has leaned into a bold, tech-forward look, and it feels very different from the cleaner designs you usually see in this price range.

Despite the massive 10,001 mAh battery, the phone measures just 9.08 mm thick. That is the most important part of this design. In hand, it feels dense, but shockingly not bulky. The curved back helps with grip, and the weight distribution is decent enough that the battery size does not constantly feel obvious.

realme uses a two-part TransView back. The upper section has a transparent crystal panel that shows internal-style design elements and decorative hardware details. The lower section uses a matte finish.

There is also a cosmetic camera element on the back that does not do anything. realme seems to have added it purely for symmetry, and it clearly tries to mimic the multi-camera layouts you see on phones like the iPhone 17 Pro. 

The TransOrange color variant looks the loudest, and it can look awkward in person because the transparent styling does not blend well with the orange finish. TransBlue and TransSilver look way better than the Orange in my opinion.

Build quality itself is solid. The frame feels rigid, and the phone does not flex too much. The P4 Power carries IP66, IP68, and IP69 certifications, which means it is protected against dust, water immersion, and high-pressure water jets.

On the front, the phone uses a quad-curved display that blends smoothly into the frame. The curves are subtle but I would’ve preferred a flat panel though (it does help the phone look and feel thinner than it is). Corning Gorilla Glass 7i is on the front, and ArmorShell protection is used internally to improve drop resistance.

As for ports and buttons, you get a USB Type-C port at the bottom, flanked by speaker cutouts. Physical buttons feel clicky and responsive. SIM tray placement is standard and you get 2x nano SIM card slots.

Overall, the slimness for such a large battery is impressive. It’s durable and well-built, but the transparent styling and fake camera element are odd additions. 

realme P4 Power Review: Display

The realme P4 Power uses a large 6.8-inch 1.5K (1280 x 2800) curved AMOLED panel. You get a 144 Hz refresh rate, which is still rare in this segment, but it’s only limited to certain apps and games. System UI still runs at 120 Hz.

The display is quite bright. realme claims up to 6,500 nits peak brightness, but what matters more day to day is the actual outdoor brightness, which is rated at 1,800 nits. I haven’t had any issues viewing it outdoors, though it can struggle under direct sunlight. Auto-brightness works fine.

The panel supports HDR10+ and can display 1.07 billion colors. Colors look vivid and saturated by default. It isn’t tuned for color accuracy, but it still looks good for media. Contrast can be inconsistent depending on the scene, and in bright daylight, content can look slightly washed out.

As mentioned earlier, the curved edges make the phone feel slimmer than it actually is, especially considering the battery size. You will have to deal with finding the right screen protector though, since it’s still a hassle to get a good one for curved displays.

realme also includes eye-care features like 4,608 Hz PWM dimming, along with DC dimming that lets you disable PWM entirely. It’s a nice addition for sensitive eyes.

Overall, the display looks great on paper and feels comfortable in daily use as well.

realme P4 Power Review: Speakers and Haptics

The realme P4 Power has a single speaker, and it doesn’t sound very good. It gets very loud though. And the advertised 400% mode is best treated as an emergency option. It gets even louder, but distortion rises sharply. It only makes sense when you really need volume, like outdoor navigation or noisy surroundings. 

Haptics are easily one of the weakest parts of the phone. The vibration motor feels cheap and springy. There’s no X-axis linear motor, and it shows. Typing feedback, notification vibrations, and UI interactions lack precision and consistency. This feels like a clear cost-cutting area, and it hurts the phone’s perceived quality in my opinion.

realme P4 Power Review: Software

The realme P4 Power runs realme UI 7.0 based on Android, and the experience sits somewhere between feature-rich and occasionally messy. The core UI is smooth and stable in day-to-day use, helped by realme’s Flux Engine, which focuses on animation handling, scheduling, and smoother transitions across apps. Basic navigation, app switching, and multitasking feel responsive, and the phone does not struggle with routine tasks.

Out of the box, there is a noticeable amount of bloatware. You will see preinstalled apps, suggestions, and promotional content in places like global search and the lock screen magazine. There are also ads baked into certain system surfaces. 

None of this is hidden, and importantly, all of it can be disabled with a bit of effort. Once you go through the settings and turn these off, the experience becomes significantly cleaner and easier to live with.

Customization options are a lot, though not all premium features make it here. You still get a good range of lock screen styles, themes, icon packs, AOD options, and UI tweaks, but some visual effects (like blur on the lock screen clock and home screen glass effects) and additional customization elements seen on more expensive realme devices are missing. That said, the phone never feels bare. It remains feature packed and flexible enough for most users.

AI Features

AI features play a large role in realme UI 7.0 on this device. AI Edit Genie is included and offers tools like AI LightMe and AI StyleMe for photo editing. In practice, results are mixed. While the tools can be fun, they sometimes lack control.

There are cases where the AI changes more of the image than requested, and errors like “photo enhancement timed out” appear more often than they should. Voice recognition inside AI Edit Genie also fails occasionally.

Other AI tools are more practical. AI Instant Clip helps quickly create short videos from selected photos and clips using templates. AI Perfect Shot and AI Recompose assist with framing and composition fixes. Quick AI Replies are supported in apps like WhatsApp, Telegram, and Messenger, allowing you to generate and send responses without leaving the current screen.

For gaming and media, the HyperVision+ AI chip enables features like AI Hyper Motion, AI Always-On HDR, and AI Hyper Clarity. There’s also an AI Gaming Coach that helps you get real-time AI tips as you’re playing the game.

Of course, there’s AI Eraser, AI Ultra Clarity, Reflection Eraser, AI Unblur, AI Summary, AI Speak, AI VoiceScribe, AI Perfect Shot, AI Smart Loop, AI Glare Remover, AI Landscape, AI Recompose, AI Translate app, Circle to Search, AI Notes, and other AI features too. This is easily one of the best smartphones for AI in this segment.

In terms of software support, realme promises 3 years of Android version updates and 4 years of security patches for the P4 Power. This is a reasonable commitment for the segment. 

realme P4 Power Review: Biometrics

The P4 Power uses an optical in-display fingerprint scanner. It’s reliable, but the placement is quite low on the screen, which is typical for a phone this size. Unlock speed is not among the fastest, and accuracy is fine once you get used to the position. Face unlock is also available and works quickly in good lighting.

realme P4 Power Review: Performance

Performance on the realme P4 Power is serviceable, but it’s also where the pricing starts to feel harder to justify. The phone runs on the Dimensity 7400 Ultra, paired with 8 or 12 GB RAM and 128 or 256 GB UFS 3.1 storage. At least this is UFS 3.1 which makes a difference for app installs, file transfers, and overall responsiveness.

In everyday use, the phone does not feel slow. App launches are reasonably quick, multitasking works fine, and basic UI navigation stays smooth most of the time. There is no constant lag or obvious stuttering in normal usage. That said, the performance ceiling is clearly lower than what you would expect at this price point.

Synthetic Benchmarks

Synthetic benchmarks reflect that positioning. These numbers are fine in isolation, but they fall behind competing phones in the same price bracket. Devices like the Neo 10R or Nord CE5 deliver noticeably better performance, especially when it comes to sustained workloads and gaming.

Gaming performance is mixed. In BGMI, the phone can run at 60 fps in standard mode, and overall performance is better than phones like the vivo T4, which are capped lower. When Hyper Frame Rate or the HyperVision AI features are enabled, the phone can push higher frame rates, occasionally touching 90 fps. 

During graphically heavy moments, frame rates drop back toward 60 before recovering. Average performance during these modes sits around the 65 to 70 fps range. Thermals are controlled well. During long gaming sessions with enhanced modes enabled, temperatures climb to around 40°C. 

Overall, performance on the realme P4 Power is decent, not impressive. It is stable and efficient, but for the price, there are clearly faster options available. The focus here is battery, and that comes with trade-offs that buyers should be aware of.

realme P4 Power Review: Cameras

The camera setup on the realme P4 Power is simpler than the design suggests. Despite the large camera island and multiple cutouts, there are only two functional rear cameras. One of the modules is purely cosmetic, perhaps added to fill space and balance the layout. It does nothing, and the camera design feels a bit misleading.

Nonetheless, the phone comes with a dual camera setup: 50 MP Sony IMX882 main sensor, paired with an 8 MP ultra-wide camera. On paper, this looks acceptable for the segment. In real use, results are mixed, very mixed actually.

Main camera 

Starting with the main camera, performance is generally fine. In good lighting, photos come out sharp with decent detail, and processing is fast. Colors can look pleasing, though realme’s color science sometimes leans cooler or introduces a slight magenta tint, especially when there are reds in the background.

Highlight control is one of the weaker areas. Strong light sources often create flares, and highlights tend to bleed into shadows more than they should. This becomes especially noticeable in outdoor shots with harsh sunlight or reflective surfaces. 

Low-light performance is acceptable as long as there are no strong highlights in the frame. In scenes without bright light sources, images retain decent detail and look usable. Once bright lights enter the scene, exposure control starts falling apart, and highlights become difficult to manage.

Zoom performance is limited, as expected. Digital zoom works up to a point, and at higher zoom levels the phone prioritizes consistency over aggressive sharpening. At 10X, it surprisingly manages to retain slightly more detail than expected, though this is still very much a situational use case.

Ultra-wide 

The ultra-wide camera is clearly the weaker of the two. Detail drops significantly, dynamic range is limited, and color matching with the main camera is not great. 

The transition between the ultra-wide and main camera is abrupt and easily the worst part of the camera experience. Exposure, color temperature, and contrast shift noticeably when switching lenses, and there is no sense of continuity. It feels jarring every single time.

Portraits

In portrait mode, realme focuses heavily on background blur. The separation itself looks good, and background blur is stronger than some competitors like the vivo T4. The downside is oversharpening on the subject, especially at 2X, which can make faces look unnatural. Skin texture sometimes appears overprocessed as a result.

Selfie 

The 16 MP (no AF) selfie camera performs decently in good lighting, but video stability and light control are weak. In low light, detail drops quickly, though background highlights are handled better than expected. Overall output looks acceptable, but it is not a strong point.

Videos 

Video performance on the realme P4 Power is nothing to write home about. You can record in 4K at 30fps from the main, and 1080p at 30fps from the ultra-wide and the selfie cameras. 

Footage from the main camera looks saturated and visually pleasing at first glance, but stabilization is inconsistent. EIS jitter is noticeable, especially in low light and in the “AI video” mode. Zoom transitions in video are also not smooth, though the phone handles 1X to 2X transitions slightly better than expected. 

Overall, the camera experience on the realme P4 Power is average. The main camera does a decent job, while the ultra-wide is usable in good lighting. Abrupt lens switching and inconsistent processing hold the system back, so the experience feels less refined than the rest of the phone.

realme P4 Power Review: Battery Life and Charging

Battery is the main reason this phone exists, so it makes sense to start with the number realme wants you to notice. The realme P4 Power packs a 10,001 mAh battery. Yes, the extra 1 mAh is very important. Whether it changes anything is debatable, but it does give realme bragging rights, and they’re clearly enjoying it.

Jokes aside, this is a genuinely massive battery, and it changes how you use the phone. In regular daily use, the P4 Power easily lasts multiple days. Social media, messaging, calls, navigation, camera use, and even gaming barely make a dent. You stop thinking about battery anxiety altogether, which is the whole point.

realme backs this with a silicon-carbon anode battery, branded as the Titan Battery. realme claims reduced degradation through fewer charge cycles, AI-based charging control, and silicon aging algorithms. According to the company, the battery can retain over 80% health even after 1,650 charging cycles, which should translate to several years of heavy use. 

In my testing, screen-on time landed around 16 hours to 18 hours, and it can even push close to 20 hours with lighter use. That’s the best battery (of course) I have ever recorded on any smartphone and I don’t think any other smartphone in India can beat it.

realme also includes a Super Power Saving Mode, which stretches the last few percentage points further than usual. At 5% battery, the phone can still handle calls, navigation, and standby for surprisingly long periods.

Charging is where expectations need to be managed. The phone supports 80W wired charging, which is slow for a battery this large. While charging to 50% takes around 40 minutes, a full charge takes close to 2 hours using the included charger. The phone also supports up to 55W PPS charging.

Reverse wired charging is also very useful. The P4 Power can charge other devices at up to 27W, so it can double as a power bank (literally). You do need a supported USB-C to USB-C cable though.

There’s also all-scenario bypass charging, which lets the phone draw power directly from the charger during gaming, navigation, or video playback. This reduces heat and battery wear during long sessions.

Overall, battery life on the realme P4 Power is exactly what you would expect from a phone built around a 10,001 mAh cell. It is excessive in the best way possible. Charging is on the slower side, but endurance, longevity, and 27W reverse wired charging are clearly the strongest parts of this phone.

Review Verdict: Should You Buy the realme P4 Power?

The realme P4 Power is easy to understand. You buy this phone for the battery. That 10,001 mAh cell changes how often you charge, how anxious you feel during travel, and how casually you treat heavy use. On that front, it delivers exactly what it promises.

The rest of the phone is fine. The display is bright and smooth, the build feels durable, the cameras do the job, and the software is feature-packed once you clean it up. Nothing feels broken or unusable. It just doesn’t stand out the way the battery does.

Performance is not a strong aspect of this phone, mind you. It’s stable and fine for everyday use, but at this price, there are phones that are faster and more future-proof. If gaming or long-term performance are more important to you, you’ll be happier elsewhere (read OnePlus Nord CE5).

If battery life is your top priority and you want a phone you can forget to charge for days, the realme P4 Power makes sense. If not, there are more balanced options in the same price range.

Smartprix ⭐ Rating: 8.0/10

• Design and Build: 8/10
• Display: 8/10
• Speakers: 7.2/10
• Software: 8/10
• Haptics: 8/10
• Biometrics: 8/10
• Performance: 8/10
• Cameras: 7.5/10
• Battery Life & Charging: 9/10

First reviewed in March 2026.

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