Until recently, a 10,000 mAh battery in a smartphone sounded more like a concept than a realistic mainstream product. That’s why we now have 10,001 mAh batteries in mid-range phones that are not much larger than devices with half the capacity.

this Realme P4 power supply It was built around this idea. It is the core identity of the device. In a market like India, this is important. The Indian market is very demanding. Expect strong performance, excellent battery life, a high-quality display, and premium design at a competitive price.

After using the Realme P4 Power for almost a month, I can say that it excels in several important areas. It’s not perfect, it does have its compromises, but it doesn’t pretend to be something it’s not. It has a clear focus and a distinct personality. This is my experience.

The phone is equipped with a massive 10,001mAh silicon-carbon battery that should theoretically last at least a few days. Spoiler alert, it does. You can even push it further depending on usage.

Let me share some real-life examples that highlight battery performance.

I took the Realme P4 Power with me on a weekend cycling trip. I mounted it on a bike stand and used it for navigation. That morning, I charged it to 100%, started my day early, and navigated using Google Maps for about three and a half hours straight. Throughout the day, I clicked photos, took multiple calls, responded to messages on WhatsApp, watched Instagram videos, which led to pretty high usage.

By the end of the day, the phone still had around 52% battery. Since I was deliberately testing, I decided not to charge it overnight. When I checked the next morning, the battery level was about 47%. This clearly reflects the efficiency of battery backup performance.

I continued to use the phone the next day without charging it. I clicked more photos and continued with regular usage. By around 7 p.m., the battery had dropped to 8%. For most users, the phone will last two days comfortably with even moderate use. If you are a light user, you can easily extend this to three days.

There is another example worth mentioning. After testing the phone, I switched to another device, removed the SIM card, and kept the Realme P4 Power charged at around 90%. I checked again two days later and it was still around 80%. This once again proves how powerful the standby performance is.

This is truly A+ battery life.

Another important aspect of this battery experience is testing. I witnessed Realme testing this battery at the factory, and from what I can tell, the thing looks solid. I’ll embed the video below where you can see how the company tests the batteries to ensure user safety.

I didn’t notice anything out of the ordinary during my month of use. Realme rates the battery for 1,650 recharges while retaining around 80% capacity, and also offers a battery guarantee. This should translate into long-term reliability.

In daily use, performance remains smooth and reliable. App launching and multitasking feel consistent, and boot times are quick. I didn’t experience significant slowdowns in my daily tasks.

My review unit was the 12GB + 256GB version, which certainly helps with optimization. Most applications remain in memory and are reloaded only rarely.

The phone runs Android 16-based Realme UI 7.0 out of the box. The software experience feels mature and refined, and its smoothness is comparable to the realme GT 8 Pro I reviewed before. The animations are smooth, the interface looks elegant, and there are no intrusive ads. There are some pre-installed apps, but they can be uninstalled.

In terms of longevity, Realme promises three years of major Android updates, which means support up to Android 19, and four years of security patches.

If you care about benchmark numbers, the phone scored 2,955 on the Geekbench 6 multi-core test and 1,042 on the single-core CPU test. In AnTuTu benchmark, its score is 10,17,466.

The design was developed in partnership with Pearl Academy, a design-focused agency in India. I have the TransSilver colorway and after looking at all three options including TransOrange and TransBlue, it seems to be the most stylish to me.

Although the back and frame are made of plastic, the device doesn’t feel cheap. It feels solid and well built. Fun fact: Weighing approximately 219 grams, it is actually lighter than iPhone 17 Pro Max.

Is it slightly thicker than a regular smartphone? Yes. However, it didn’t feel uncomfortable in my hand. Users with smaller hands may find it large, but that’s increasingly common in modern large-display devices.

The curved back blends into the sides, and the curved front display enhances ergonomics while making the phone appear slimmer. Durability is also a strong point, with IP69, IP68 and IP66 ratings providing extra assurance.

However, the single bottom-firing speaker can become muffled if covered. Considering the size of the phone, a dual stereo speaker setup would be better. While the speakers are loud and don’t distort at higher volumes, it’s still not a stereo setup.

Another issue is the placement of the in-display fingerprint scanner. It sits a little too low. Given the size of the phone, getting to it may require some odd hand exercises.

In day-to-day use, the display feels closer to a high-end panel than a typical mid-range panel. Colors are bright but not unnatural, viewing angles are excellent, and there’s no noticeable color cast when viewed from the side.

I also feel strongly that the curved design enhances the overall aesthetic, although it can introduce reflections in certain lighting conditions. That said, I would make these tradeoffs for a premium look and feel, but that’s just my opinion. Additionally, finding a standard tempered glass protector can be challenging due to the curved edges. I recommend keeping the pre-applied screen protector on for as long as possible.

Outdoor visibility is also strong. Text and content remain clear and easy to read, even in bright sunlight.

In daylight conditions, I found the main camera to deliver good results. I thought the shadows and highlights looked natural and the level of detail was very satisfying for the part. In low light conditions, however, I did notice a slight shutter lag at times, which can result in softer images if you’re unsteady.

Color reproduction is generally accurate, although I felt the blues were slightly off at times. I also noticed some purple fringing on high contrast edges in some cases.

In my experience, Portrait mode performs reliably with both human and animal subjects. However, I did observe that the complex edges can sometimes appear a little imperfect.

Speaking of the ultra-wide-angle camera, it works in good light, and I thought it performed just fine outdoors. However, in low-light conditions it introduces noticeable noise and loses some detail.

Video performance at 4K 30fps is generally stable. I found that in dynamically lit scenes the phone can change white balance and exposure very frequently. In consistent lighting conditions, though, videos look detailed and suitable for most everyday uses.

I also really appreciate the Pro Video mode that Reame brings, which adds useful flexibility. In addition to the usual controls like ISO, shutter speed and white balance, it offers manual controls including 16:9 and 2.39:1 aspect ratios, focus peaking, histogram, audio level monitoring and 24fps recording.

There are some compromises, such as the single speaker and the lower placement of the fingerprint scanner. Even so, the overall experience is solid and reliable. I didn’t experience overheating, and the design feels solid and well-executed.

That said, I would recommend the 8GB + 256GB variant, which is priced a few thousand rupees more than the 128GB base model $25,999. This provides the best overall value.

Rating: 8.5 out of 10