This is the biggest battery test we have ever done with seven of the world's best flagship phones all competing for the title of PhoneBuff Style Battery Champ. Where we have the only non-Android phone in the iPhone 17 Pro Max. There's Samsung's all new Galaxy S26 Ultra. We have Google's Pixel 10 Pro XL with its custom Tensor G5. There's the OnePlus 15 and its giant silicon carbon battery. The current champ in the Oppo Find X9 Pro, the global version of the Honor Magic 8 Pro, and the brand that won it all last time we did this in the Vivo X300 Pro. Making seven phones, four completely different chipsets, with room

for only one champ. Let's get right into it. All right, we'll kick things off in the phone test where each of these seven devices is going on the same 1-hour call. Where 60 minutes later, three of them are still reporting 100% while the other four only fell by a point or two. But we'll see what happens here in messaging where the phones are texting back and forth with our automated chatbot. Now, it's worth noting that we calibrate all of the screens to the same 200 nits of brightness. And all phones are also within equal distance of the mini cell tower in our lab. Where after an hour of texting later, wow, the Vivo is still somehow at 98% putting it clearly out in front while the iPhone,

the Galaxy, and the Pixel fall into the last three slots. Now, I don't want to read into the percentages too much here since they aren't the most accurate early on. And I think we'll get a much clearer picture as the test progresses. However, one thing I do want to mention real quick is while we calibrate the screen brightness on each phone, that doesn't mean that these displays are equal. They have different resolutions with the Galaxy, the Pixel, and the iPhone actually having the highest pixel counts. And they also have different screen sizes or screen areas with the iPhone and the Galaxy also having the biggest screens when you factor in their aspect ratios. But after an hour of

email, there wasn't too big of a difference. The OnePlus did do the best though with it closing in on the Vivo for that spot in first. But it's this browser test that I always find the most interesting since it's the first time that we're really taxing the CPUs. With us randomly loading the same set of websites and then also scrolling through them. Where 60 minutes later, wow, the OnePlus 15 does the best again. Not just in terms of raw percentage strength, which you'd expect with a phone with a big battery, but even in terms of estimated milliampere hour usage. Which was enough for it to take the lead in first. The Vivo's also in the second.

The Find X9 Pro is right there behind it in third while the Honor is only two points behind the Oppo in fourth. Here in Instagram, we're scrolling through the home feed with us also pausing in between those scrolls just like you would in real life. Which should translate into the more optimized phones ramping their refresh rates down during those pauses in order to save on battery. And 1 hour later, okay, some interesting results. The OnePlus and the iPhone do the best in terms of raw percentage drain with the iPhone and Galaxy actually being the most efficient in terms of estimated milliampere hour usage. Of course, with their smaller batteries though, that still ties them for fifth here with only the Pixel doing

worse at this point. But we'll see if that efficiency can carry over here to standby. Where we turn off the displays and just let the phone sit there for 16 hours straight. That said though, the phones are still connected to the network through Wi-Fi and cellular. So the screens being off doesn't mean that there isn't any activity going on in the background. And oh man, the iPhone actually ended up doing the worst this time both in terms of raw percentage drain and even in milliampere hour usage. With the OnePlus and the Honor actually doing the best in that department. But we'll see if the iPhone can recover here in YouTube. Where in addition to calibrating the screens to

the same 200 nits of brightness, we also calibrate the speakers to the nearest decibel count. Which, you know, while it doesn't account for speaker quality with some of these phones having better speaker systems than others, it does at least control for loudness. Where after an hour of binge-watching some PhoneBuff, the OnePlus only drains by five points. The Honor and Oppo only drain by six. The iPhone, Vivo, and Galaxy all drain by seven. While the Pixel gets hit the hardest with a 10-point drop. So heading into this gaming test, one thing I'm really curious about is whether the phones with lower resolution displays will have an advantage. Since technically, they are rendering fewer pixels. Of course, at

the same time, this isn't the most demanding game out there. It's just Alto's Adventure. It's not like a heavy 3D title. But nonetheless, it is still taxing the GPUs. Where after an hour, there may actually be something to that. As the two lower resolution Snapdragon devices outperformed the higher resolution Galaxy. Not just in terms of percentage, which would be obvious given their bigger batteries, but also in terms of their efficiency. Meaning as we work on maps, we now have four distinct groups. We have the OnePlus clearly out ahead. The Oppo, Honor, and Vivo are all duking it out for second place. While the iPhone and Galaxy are in contention for the next set with the Pixel clearly

behind. And after an hour of simulating navigation later, that trend only continues. With there now being a 30-point delta between the phone in first place and last. Here in Spotify, we just have our robots listening to music with the biggest factor being the speakers. Which, unlike a lot of the other tests, you can't really optimize for with software. Raw battery capacity is usually the thing that matters most here. And an hour later, that's exactly what we see. Now, this Snapchat test is the most intensive that we've done so far. It uses multiple components on the phones at the same time. Where a lot happened over that hour. The current champ in the Find X9 Pro puts itself right back in contention for first.

While the OnePlus is now officially 30 points ahead of the iPhone. And we're not even done yet. This final stage here is AppCycle. Where we're opening and closing the same set of apps in a loop. Now, any phone that can make it this far has good battery life in my book. But we're not here to find out which phones have good battery life. We're looking for the best in the world. And 45 minutes into it, the Pixel officially drops out of the race coming in seventh. While the iPhone and Galaxy are now nearly tied. However, the Galaxy does look like it's draining at a faster rate. So while it goes for an hour and 30 minutes longer than the Pixel, it

still only comes in sixth. The iPhone 6% less to go on for 40 minutes longer than the Galaxy does. Putting it in fifth place. Meaning all three of the non-silicon carbon battery phones are officially out of it. At which point, the OnePlus 15 is at a whopping 33%. The Find X9 Pro is at 21. While the Magic 8 Pro and Vivo X300 Pro are each at 8%. Which was enough for the Vivo to last another 45 minutes before dying. With the Honor going 9 minutes longer than that. And then there were two. So we got the current champ in the Oppo Find X9 Pro and what almost certainly looks like it's going to be the new champ in the OnePlus 15. Which still has 26% left to go. And another hour and 12 minutes into

AppCycle, there you go. The Find X9 Pro finally gives out lasting just an insane 31 hours and 12 minutes total. But we're not done yet. The OnePlus 15 still somehow has 17% remaining. Meaning not only do we pass the 6-hour mark in AppCycle, but it goes on for 7 hours and 10 minutes. Bringing its total time to a mind-boggling 33 hours and 10 minutes. Making the winner and the new PhoneBuff Style Battery Champ, the OnePlus 15. Anyway, that is it for me in this video. If you guys enjoyed it, give it a thumbs up. We put weeks and weeks into this to try to get everything as accurate as

possible. Thank you for watching. And as always, I'll see you in the very next episode.