This is the year in which the manufacturers took a nice step ahead regarding the battery capacities either in mid-tier or flagship devices. To our delight, 5,000 or 6,000 mAh batteries started to become popular Delivering juice for the whole day. In this environment, two recently launched phones stood out, the Moto G8 Power, from the traditional Motorola series, and the Galaxy M31, recently launched, from that series that only sells online and gets a nice amount of attention. With gigantic batteries, which one does better? What about the other aspects of each of them? This is what you will see now in this comparison by Here each cell phone follows in the footsteps of its respective manufacturers, without much news. Motorola follows its current standard that features cameras in reverse exclamation shape while the M31 brings the 2020 trend of the brand which is to have that rectangular module to accommodate the cameras. In the material, they are made of plastic both in the frame and in the back, which is shiny in both. 

The colors of the M31 are solid, while the Moto G8 Power bets on a textured metallic effect. On the body, only Motorola brings water splash resistance and comes with a flexible case in the box. Biometrics is a fingerprint reader on the back of the two, which are accurate, fast and a little out of hand on the M31 – it’s also a little bit taller, but all other dimensions are bigger on the Moto G8 Power, including weight and thickness, even with less battery. Upfront, the notch is older on Samsung, with a centralized U while its rival has already adopted a small hole in the left corner. Finally, they are Dual SIM and only the M31 has a separate slot for the secondary SIM and also the MicroSD. Due to the resistance of the G8 Power and the measures of the M31, we opened with a draw. It is always a problem when one of the contestants has a Super AMOLED screen and the other does not, except when we are talking about Apple, the controversy here, which tends to be fine even though it is not Super AMOLED. And it gets a little complicated with Motorola being the competitor, because of that tradition of darkened edges – here the displays are the same size, 6.4 “, as well as the Full HD + definition but the Moto G8 Power IPS has a better screen-to-body ratio, even with bigger edges. 

The M31 is protected by Gorilla Glass 3 and Motorola does not say any information about it. In what it offers, competition is difficult, as the Moto G8 Power’s screen has a medium brightness which can be bad in the sun, and even with good color reproduction the contrast is not very high. The M31 has very high brightness, vibrant colors, deep blacks, and good viewing angle – it’s a brilliant point for the Galaxy M31. The situation is reversed here, where the Moto G8 Power order is in stereo and it does well with powerful sound well balanced, with little distortion and the presence of Dolby Atmos and aptX technologies. On the M31 it is mono and although it also supports Dolby, it has a medium power and sins in the bass and mids. The headphones are in-ear and neater on the Motorola, as well as being more comfortable. The sound is decent and even though there are no highlights, they are better than the very simple headphones that come with the M31 – that are the most common type possible with only reasonable sound. Now, we have a reverberating point for the Moto G8 Power. We arrived at the system and we will see here where we are now – thankfully these two devices come out of the box with Android 10, and although both should receive at least one update Samsung has been a little faster and more reliable in its updates. In features, Motorola focuses its differentials on the Moto app, where you can find, for example gesture navigation, shortcuts with device movements, among others. For the rest, it is a simpler interface, good for those who understand less and are afraid of ending getting lost in the device’s features. The M31 comes with a One UI Core 2.0 interface, which is the One UI you always know but with fewer features, since the Galaxy M series is simpler. You lose, for example, features like Folder Safe and also Samsung Pay. Still, several other features and configurations are present in addition to a lot of bloatware. In connections, none of them have NFC or digital TV but the M31 has the advantage of offering Wi-Fi of two bands, which Motorola does not have. 

Other than that, they have Bluetooth 5.0 and GPS, so we have a point here for the Galaxy M31. Even though it’s simpler, Motorola’s system has been heavy, and when we add that to the lack of that here we have an older processor concerning the competitor, then we already know what to expect. It comes with a Qualcomm Snapdragon 665 with 4 GB of RAM and 64 GB of storage while the M31 has an Exynos 9611 with 6 GB of RAM and 128 GB of space. In the benchmarks, the results are 18% better for Samsung, while in our tests standardized apps opening the difference is much bigger, and if the M31 it takes 80 seconds in the whole test, the 157 seconds of the Moto G8 Power are almost twice as long. In games, they look alike, although they even hold some heavier titles are not going to allow superior graphic qualities and they can even stumble in games like Asphalt 9, for example, better supporting more casual games. So here we have another point that is with the Galaxy M31. Motorola’s Power series was very successful last year with the Moto G7 Power that broke records in our tests. The same was not repeated with the G8 Power, even with the same 5,000 mAh battery. The Galaxy M31 entered the room with 6,000 mAh, and the Samsung lasted half an hour longer in our tests, reaching more than 26 and a half hours of autonomy. However, this is the same result as last year’s Galaxy M30 which has the same number as the Moto G8 Power. So, both are good and with average use, they can get up to two days away from the plug but they won’t break any records, only the negatives ones. 

When recharging, even with less battery and an 18-Watt charger in the box, The G8 Power can spend the same two and a half hours of the M31 plugged in having more battery and a charger of only 15-Watt. The point here goes to the Galaxy M31. Following the trend of quad cameras, here we have two phones with this set. The interesting thing is that they differ slightly in the choices. The Galaxy M31 has a 64 MP main wide and f/1.8 aperture with PDAF it also has an 8 MP ultra-wide, a 5 MP macro, and a 5 MP depth sensor. The Moto G8 Power, its main wide has 16 MP, f / 1.7 aperture and PDAF, also has a ultra-wide of the same 8 MP, an 8 MP telephoto, and a 2 MP macro. One invests in a depth sensor and the other in a telephoto one, and Motorola’s is more versatile at this point – this telephoto is interesting but, in general, the best thing is to use your zoom up to twice promised by the optic one, because it ends up making noise after that. The macro is weak on the Moto G8 Power but in good light, it makes nice shots. It has a fixed focus like that of the M31 which also got some interesting photos with better quality. The ultra-wide of the two is similar, and if on the M31 is more uniform on the G8 Power there is a problem of distorting a little on the edges, but the advantage of being less worse in situations of less light. 

The main camera could be much superior on the Samsung, but the Exynos that comes with it ends up stumbling in post-processing and then he only makes better images at the same 16 MP from Motorola, so in good lighting they’ll perform very similarly in quality and colors. The M31 has the advantage of the presence of a Night Mode, which although it does not bring that incredible improvement is still superior to the G8 Power, which has no improvement for less light situations which is something that was reserved for the G8 Plus. So, even with the telephoto, the point is the M31 that ends up performing better in low light. Two cameras that shoot in 4K at 30 fps but only have electronic stabilization when shooting in Full HD, where up to 60 fps end up appearing on the Moto G8 Power. As against, the M31 also has a very slow focus and both have good audio capture. So here is a point that remains with the versatility of the Moto G8 Power. Finishing with the front camera, the M31 has a 32 MP sensor against 16 MP of the G8 Power. 

They have HDR but only the M31 records in 4K on this camera and the overall result ends up being better for Samsung, which has less face smoothing than the rival, in addition to doing better in photos at night. The selfie point goes for the Galaxy M31. We have a considerable price difference here, and this is something that can determine your choice purchase – launched at the beginning of the year, the G8 Power arrived for R$ 1,600, but in this current mess that we are living in the market caused it to drop a little price, currently at an average of R$ 1,500 – the Galaxy M31 is more recent here and if it arrived for R $ 2,000 also had little price withdrawn and is still being found for R$ 1,800 on average. And if market optimism improves in the coming months, prices drop and maybe even Black Friday we have a better promotion. With this current difference of R$ 400, the Moto G8 Power ends up bringing a better cost-benefit ratio since it is a good smartphone and is currently at a better value. So, the final point in our fight here is the Moto G8 Power. The Galaxy M31 was long-awaited by those who already liked the M30 and has improved in many things. The Moto G8 Power has risen above the Motorola line and even though it has good quality he was a little lost in this new category that he reached. However, the M31 is only sold on the internet, but in current circumstances this is not a huge impediment. Worse is to see that even after the launch prices are falling slightly, that is what is worrying. But in this limit of up to R$ 2,000, Samsung’s phone is proving to be one of the best candidates the king of intermediaries in the country this year. We end up recommending the Moto G8 Power only to those who still want an exceptional battery but want stereo audio in an intermediate and good quality in the body or for those who can and only need to spend less money without losing a lot. But now, the question for you. 

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