Battery Life - The Best

The previous generation ROG Phones have impressed us a lot when it comes to their battery life, and that’s easily attributed to the massive 6000mAh battery that’s included in the 240g heavy phone.

The ROG Phone III this year doesn’t increase battery capacity, but does feature a more efficient SoC that should showcase even better results. The minor bump to 144Hz shouldn’t come with a notable power consumption increase.

Web Browsing Battery Life 2016 (WiFi)

As expected, the ROG Phone III is topping our battery life charts. At 60Hz refresh rate, the new phone slightly edges out the older ROG Phone II with an astounding 16.51h runtime.

Turning on the 144Hz refresh rate comes with a large 22% hit in battery life, but in absolute terms it still maintains an excellent 12.9h runtime, making this the longest-lasting phone amongst the 120Hz+ crowd.

PCMark Work 2.0 - Battery Life

In PCMark, the improved power efficiency of the new SoC is further exposed, with the newer generation having a bigger leap of the Snapdragon 855 ROG Phone II.

The absolute battery life runtimes here are outstanding.

Overall, there’s very little to say about the ROG Phone III’s battery life other than it being class-leading. There’s no other flagship device out there with such great battery life, as vendors only employ such huge battery capacities in lower-end devices. You have to pay the price in terms of device weight, but you’re also getting a lot in return.

Display Measurement Camera - Daylight Evaluation
Comments Locked

71 Comments

View All Comments

  • Kishoreshack - Friday, August 28, 2020 - link

    Just love how far ASUS has come with its phones
  • Kangal - Sunday, August 30, 2020 - link

    Yeah, in 2019... but this year they have gotten worse.
    Just compare the Zenfone 6 to the Zenfone 7 for starters.

    On the ROG 2 vs ROG 3,
    The new device is slightly larger, heavier, and lost the 3.5mm Jack. And it raised the prices.
    But comparing the 16GB RAM vs 12GB RAM, isn't that big deal. And the uplift from the QSD 855 to the 865/865+ is hardly impressive. Or the 5900mAh battery compared to the 6,000mAh battery. Even the screen is the same comparing 144Hz to 120Hz, or the 270Hz-Touch to the 240Hz-Touch. By most metrics the new model is the same or worse than the older one.

    And again, it's more expensive. I think that second chipset (Qualcomm's external modem) is the culprit for this year's lacklustre phones (larger, hotter, battery thirstier, less internal space, more expensive).

    The only point where ASUS has made a notable upgrade is in the camera. And that's on both the ROG 3 and the Zenfone 7. But it's hardly a reason for someone to choose to buy a new ROG3, when they could get the ROG2 on a discount.

    I think I could've been fine with the ASUS ROG 3, if they kept the 3.5mm headphone jack, added a microSD slot, and added wireless charging. That would've made the +$200 price hike easier to swallow. If they included JoyCons in the box, it would've been an instant hit.

    To be honest, I would've preferred they downsized it slightly to around (166 x 74 x 9mm) which is like the size of the OnePlus 8 Pro, any larger makes it unpocketable for most regular mens jeans/pants. Even if that means downsizing the 6000mAh battery down to 5000mAh battery, it's worth it for the quality of life improvement.
  • s.yu - Monday, August 31, 2020 - link

    When SD865 prices just got announced people were seeing a price hike of the handsets as inevitable. This phone looks decidedly less "gaming" than the predecessor and that's a big plus for me, and the second C port means the lack of the jack is at least tolerable. How they should cut corners on the optics so much confuses me, I'm wondering if this is a defective unit.
    There's rumor that Samsung is still contemplating bringing back the jack in flagships next year so I'm taking the wait and see approach, the S-Pen for me is worth it, but if Samsung doesn't follow through then I'll come back and buy one of these second-handed. With far superior battery to the Sony, it's already the closest thing to an all-rounder on the market.
  • Kangal - Monday, August 31, 2020 - link

    I'm thinking the next year's QSD 875 will be like 8% faster simply because of the 5nm advancement. Plus another 8% speed due to slight architectural improvement in the X1 core, and modem efficiency.

    Yes most important, it should have the 4G/5G modem integrated (hopefully)... and that should mean better efficiency, and slightly larger internal space. So we could see the 3.5mm Headphone Jack make a comeback because of that.

    But Samsung has killed the Jack for good. They have their own wireless earphones for sale. They got rid of it on the Note10 for no good reason. It's not coming back. Heck, even if they wrongly accuse the internal space restrictions, which is not true, there is no reason that they cannot integrate the 3.5mm Headphone Jack into the underside of the SPen.

    I'm hoping this year has negatively affected all OEMs that they re-introduce some wanted features next year like Headphone Jack, microSD... on top of REDUCING the prices down (-30% ?) to regular levels to ensure strong sales/continued sales. I think this year proved that marketing wasn't strong enough to deceive the consumers.
  • s.yu - Wednesday, September 2, 2020 - link

    lol I would bet on a comeback of the 3.5mm than a 30% price drop. Anyhow, the market hasn't exactly been exciting this year so I'm truly not in a hurry to upgrade, so I'll wait and see until there's something solid suggesting no jack again.
  • flyingpants265 - Tuesday, September 1, 2020 - link

    Joycons are stupid, it should be a whole PSP-like controller case that locks in place, to literally turn your phone into a PSP. Then we can have serious game development and ports for phones.

    This should have been available since 2007 or before. 13 years later and we're still using weird flimsy attachable joycon things.

    The current Chinese Bluetooth psp-style controllers suck bad.
  • Kishoreshack - Friday, August 28, 2020 - link

    The most awaited review is finally here
    Wanted to see how it fares against other flagships
  • Kishoreshack - Friday, August 28, 2020 - link

    6000 mah battery with 865 plus & 144hz display is an instant sell for me
  • nico_mach - Friday, August 28, 2020 - link

    Yes, this, I think this phone is more compelling outside of its gaming. Esp in comparison to iphones - they dominate the performance but usually ship with tiny batteries. Android phones need to carve out a niche, and this phone does that.
  • melgross - Monday, August 31, 2020 - link

    They still have some if the best battery life. And they’re not “tiny” batteries. iOS doesn’t need very large batteries as Androud phones do.

Log in

Don't have an account? Sign up now