20:32
So, when Redmi sent us their new Note 17 Pro Max, giving us early access to this mid-range smartphone, they specifically asked us to test the battery in our lab. Because this phone has the largest battery I've ever seen in a regular smartphone-an incredible 10,000 mAh. So today we're testing it against the competition, starting with the iPhone 17, which, by comparison, has a tiny Samsung Galaxy S 57 shows a better result, but it is still half of the Redmi's 5,000 mAh. While the Oppo Reno 16F is equipped with a significantly larger 7,000 mAh battery. But how does it compare to the Redmi battery and whether the Note 17 Pro Max will top our well, there's only one way to find out. But before we begin, a brief disclosure. We
collaborated with Redmi on this video and they received the testing report. However, Redmi had no influence on our methodology, nor did they review this video or anything I say before publication. So, after that, let's get straight to the point. Well, let's start with an hour-long phone conversation on each device. They are all connected to the same Wi-Fi network and are the same distance from the mini cell tower in our lab. Now, for some reason, despite full reception, the Galaxy dropped the connection several times, and we had to quickly reconnect it, but in any case, it didn't affect the result much, all four phones did very well. Galaxy lost only two percent, iPhone only one, while Redmi and Oppo still show 100%.
Of course, they had to use up at least some of the charge during this phone conversation. We've noticed that manufacturers sometimes overstate charge estimates in the early stages, and we should get a much better idea of what's actually happening when messaging. And after an hour of correspondence: wow, Redmi lost only one percent. The Oppo lost five percent and the other two to six, meaning that before starting email, the Note 17 Pro Max still has 99%, the highest score of any phone at this stage of the test. The task itself is quite easy. All we do is open and flip through the same set of emails. So it's worth noting that we calibrate each display to the same brightness level of 200 nits. Of course, we can't control things like
screen size and resolution. So, theoretically, since Redmi has the largest screen with the corresponding resolution, it should consume more power. But in practice, this doesn't seem to matter much. With a massive battery to make up for it, it only lost two percent, compared to four in the Galaxy and five in the Oppo and iPhone. But it was this browser test that I was waiting for, because, unlike other tasks, this one tests the chips while we browse sites and scroll pages. And considering that there are four completely different processors here, it's interesting to see how efficient each one is. After 60 minutes of web surfing, they all used about the same amount- between 400 and 450 milliampere- hours. Of course, if you take into account battery capacity,
the results change: Oppo increases the gap with Galaxy, and Redmi is ahead of iPhone by double-digit percentages. But the good news for the iPhone is that it may have an advantage on Instagram, where we simply scroll through the feed like in real life. Since the iPhone is the only device with an LTPO display, it can dynamically lower the refresh rate while scrolling to 10Hz, which theoretically gives it an advantage. And after an hour of use, this may have been the deciding factor : the iPhone consumed the fewest milliampere-hours, outpacing the Oppo and Galaxy even in percentage terms, despite a much smaller battery. So the iPhone is not out of the game yet, and if it can hold its position in standby, it has a chance to overtake
the Galaxy. And after 16 hours of standby with the screens off, no, the iPhone suffered the most this time, losing 11 percent, while Android smartphones lost five or less, which is interesting, because the iPhone used to hold its charge best in standby mode, and now Android has improved significantly. Not only by percentage, but also by estimated consumption in milliampere-hours. Here on YouTube, we watch PhoneBuff, where in addition to calibrating the brightness of the screens, we also adjust the speaker volume to the same decibel level. And after an hour of use, wow, the Note 17 Pro Max only lost four points, which is the
lowest score we've ever recorded in this YouTube test. Both Oppo and Galaxy dropped twice as much, by eight points, while the iPhone simply "fell apart" with a drop of 13 points. Moving on to games, I think the trend lines are pretty obvious. Redmi is well ahead of its competitors, with a 16-point lead over the second-place phone and Oppo. The Galaxy actually holds up relatively well here, with its 5,000mAh battery. Well, the iPhone, you know, with its small capacity, is obviously trying to keep up . And after an hour of play, this tendency only intensifies. Now, this map test is not nearly as difficult as the gaming test, where we're just trying to simulate navigation. So, we have GPS on, compass on, and phones actively downloading
traffic information. Where after an hour of operation, all four devices showed almost identical results in terms of milliamp-hour usage, where battery capacity became the deciding factor. The Spotify test is pretty simple. Our robots simply listen to music, where the speakers are again calibrated to the same volume level in decibels. And after an hour of this test, the results are simply incredible. Only a 3-point drop in Redmi compared to a 9- point drop in Oppo and Galaxy, and a 15-point drop in iPhone. This means that before Snapchat, the most intensive test in the entire set, the Redmi still has 70% left.
Whereas the iPhone, well, it's already "breathing on incense" with 9%. And unfortunately for the iPhone, after just 43 minutes it finally shuts down. At that point, Galaxy still has a good margin of 27%. Oppo shows a result that is 10 points better-37%, while Redmi is even 30 points ahead of Oppo with 67%, which means that only Android phones reach the stage of cyclical application launch, where we simply drive these devices to full discharge by opening and closing the same set of applications in a circle. Where the Galaxy A57 shows a really strong result-1 hour 55 minutes. Which, honestly, I consider a great indicator of autonomy. Oppo, with its 7000 mAh battery, obviously shows a much better result,
working almost 2 hours longer than the Galaxy and finally turning off after 3 hours and 40 minutes of cyclically launching programs. So, Redmi Note remains last in line, with 43% remaining charge. So at this stage, the competition for Redmi is no longer the phones on this list, but the first place in our overall ranking, which is currently occupied by the OnePlus 15. And it simply did not want to run out of battery. I was wondering if it would start to lose ground towards the end, because sometimes manufacturers embellish the actual running time, but not in this case. Not after 5 hours, not after 6, or even after 7 hours of working with applications. It beat OnePlus: The Note 17 Pro Max lasted 9 hours and 45 minutes of app usage before
finally shutting down, officially putting it in first place in our battery rankings. Okay, since all four phones were completely discharged, we also decided to check their charging speed, because Redmi and Oppo have quite capacious batteries. Fortunately , both of them support really fast charging. 80W in Oppo and 100W in Redmi. After 30 minutes, the results were the opposite of the discharge test, at least in percentage terms: the iPhone was charged to 69%, the Galaxy to 61%, the Reno 16 F to 53%, and the Redmi to only 46%. Of course, if you take into account their capacity and the amount of charge received, everything falls into place, as expected. The Redmi got about 4600 mAh in half an hour, compared to 3700 mAh in the Reno, 3000 mAh in the Galaxy, and
only 2500 mAh in the iPhone. If you extrapolate this based on the discharge test data, then half an hour of charging will give you the most working time with Redmi. Oppo and Galaxy show approximately the same results, while the iPhone, despite a high percentage of charge, will provide the shortest operating time. But, whatever it is, that's all I have in this video. A big thank you to Redmi for sending us the phone early and becoming our partner. Thank you all for watching, and as always, see you in the next episode.
