The new Galaxy M51 is the record holder in Samsung’s M line. It got a huge 7000mAh battery, but it remains quite lightweight and compact. Previously, only models of the M21 and M31 series could boast of this – they have a 6000 mAh battery. But Samsung, it seems, is not going to stop and continues to increase its smartphones’ autonomy.

 

Design and display

  • 6.7 ”, 1080×2400 pixels. (FHD +), Super AMOLED Plus
  • Plastic case

We are used to the fact that a gadget with a large battery is such a heavy “brick,” more like a murder weapon than a phone. But today, a capacious battery can fit into a slim body like the Galaxy M51. Outwardly, the smartphone is no different from other modern models, except that it weighs a little more than average – 213 grams.

The model’s design is minimalistic and elegant: the glossy plastic case is made in one color without any decorations or gradients. The camera is built into the body almost flush – when the phone lies on the back, it does not roll from side to side. Available in white and black colors. The back is easily soiled, immediately collects fingerprints, and in the future – and scratches. But there is no silicone case in the kit, so you have to buy it separately if you want to keep the gadget’s presentation longer.

All buttons are located on the right side, and a fingerprint sensor is also integrated into the power key. The sensor itself is responsive and reacts even to wet fingers, but the button with it is slightly recessed into the body – because of this, it is difficult to press it together with the volume key to take a screenshot with one hand.

The main speaker is monaural and quite loud, and there is also a 3.5mm jack for a wired headset.

The display is made based on an AMOLED matrix – very high quality and bright. With such a screen, it is convenient to use a night theme: the interface’s background in it becomes completely dark, and the smartphone also saves energy since it does not highlight black pixels.

The display also has good color reproduction and high-resolution Full HD +, with which you will not see any individual pixels. Samsung can make good screens, that’s a fact unless the frame refresh rate is limited here to 60 Hz – which is expected because the Galaxy M line does without flagship chips.

Autonomy

  • 7000 mAh
  • USB-C, Fast Charge 25W, Reverse Charge

We expected good battery life from the Galaxy M51 most of all, so we checked it first.

For half an hour of 720p YouTube video playback at medium brightness and Wi-Fi on, the smartphone lost only 2% of its charge. A full battery lasts 25 hours of online viewing. If you are not going to watch videos all day, but use messengers, a browser and periodically answer calls, then the gadget will last even longer without recharging – one and a half to two days for sure.

There is nothing worse than charging a large battery for hours. So Samsung immediately included a 25W fast charger in the kit. In half an hour, the smartphone was charged from 4% to 33%, and in an hour – up to 62%. It takes about two hours to fully charge: given the 7000mAh battery, this is not that long.

The M51 also has a reverse charging function: if you use a USB-C to USB-C wire, you can use your smartphone as a power bank and charge other gadgets from it.

Performance and equipment

  • Qualcomm Snapdragon 730G processor, Adreno 618 video chip
  • Memory 6/128 GB, microSD support up to 512 GB
  • Bluetooth 5.0, NFC, Android 10 One UI 2.1

Today, even smartphones can run top games, not to mention models like the Galaxy M51. The gadget runs on a fresh eight-core Snapdragon 730G, made using an 8 nm process technology. The letter “G” in the name indicates that the processor is optimized for gaming. And it really is – it plays all heavy 3D games at high and medium settings with a comfortable fps level.

When gaming, you can use the Game Launcher application, which adjusts performance, collects a library with your games, and maintains detailed statistics of when and what you played.

For good performance, you can also thank modern hardware in the form of 6 GB of LPDDR4x RAM. The main memory is also in abundance – 128 gigs. If desired, you can expand the storage by another 512 GB without prejudice to the second SIM card – a separate microSD slot.

The smartphone runs on Android 10 with One UI 2.1. Since this is a Galaxy M model, it doesn’t support Samsung Pay, but it works seamlessly with Google Pay so you can pay for purchases via NFC. There is also a fresh version of Bluetooth 5.0, which will allow you to connect two wireless gadgets to your smartphone at once.

Cameras

  • Main camera: 64MP + 12MP + 5MP + 5MP
  • Front camera: 32 MP (F2.2)

The Galaxy M51 camera left a double impression – on the one hand, it has an excellent main sensor from Sony with a resolution of 64 megapixels and a high-quality sensor for macro. Still, on the other hand, it has a weak “shirk” and no optical zoom.

There are four sensors in total: the main (64 Mp, F1.8), the depth sensor (5 Mp), the ultra-wide-angle camera (12 Mp, the viewing angle 123 degrees), and the macro (5 Mp).

In automatic mode, you can shoot at both 64 megapixels and 16 megapixels – the smartphone combines neighboring pixels to reduce the picture’s size and increase its quality. Although the camera supports AI processing, it does not increase saturation and does not brighten colors by default. To make the subject look better than it actually is (or at least as well), you need to use filters or Beauty mode for portraits. It is also possible to create your own filters with preset color settings.

However, if you shoot a dull winter landscape without filters, then it will turn out to be dull in the photo. AI won’t make the trees greener and the sky bluer only if you dig into the settings or master the Pro-mode.

The ultra-wide-angle camera is much inferior in quality to the main one – and in general, this can be said about many non-flagship smartphones.

In the “Live Photo” mode (Samsung calls it portrait), the smartphone clearly separates the subject from the background. The amount and style of blur can be adjusted even after the photo has been taken.

I liked the quality of macro shots very much: even in top-end smartphones, the macro sensor usually has a resolution of 2 megapixels. In the Galaxy M51, it is as much as 5 megapixels. To focus, the phone must be kept at a distance of about 4 cm from the subject.

The smartphone can also record video in 4K at 30 fps and is equipped with a good front camera with a resolution of 32 megapixels. The selfie camera has an ultra-wide-angle mode and a set of enhancers to reshape faces, eyes, and skin tones.

Should you buy the Galaxy M51

The smartphone will be an excellent choice for those who need a super-autonomous gadget – it will last about two days without recharging, and then it will be able to charge from the supplied charger quickly. It is also worth praising the powerful processor and good equipment in the form of an AMOLED screen, 128 GB of internal memory, NFC, and a separate slot for SIM cards and microSD. However, there are also disadvantages: a rather mediocre ultra-wide-angle camera and a poor package. I would like to see a silicone case and headphones included.

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