It's so good to have the Duo Camera back! No?

The 20 MP camera with F2.2 aperture of the HTC One M9+ is a continuation of the one we met in the M9. It's a versatile shooter offering a variety of options and settings for shutterbugs. What's notable here is the Duo camera feature. The duo camera thing that was one of the highlights of the One M8 in 2014 failed to gain any steam. Since then, HTC hasn't used it in its phones, but surprisingly, the M9+ does have it. It comes with an extensive collection of effects and post-editing options, which tend to take a while to get processed and applied, but may lead to interesting results.

This 20 MP camera sure isn't the savior of HTC, because the images it takes are of about average quality. We found most photos to have some haziness to them, and a pronounced lack of definition. Fine details are hard to come by, while color balance tends to be OK most of the time, though some trickier situation easily fool it. Indoors, things are largely the same, with the slight occasional greeniness here and there. The UltraPixel selfie camera, on the other hand, actually does a pretty nice job. It, too, can easily mess the white balance up, however.

Taking a pic Lower is better Taking an HDR pic (sec) Lower is better CamSpeed score Higher is better CamSpeed score with flash Higher is better
HTC One M9+ 2.3
No data
HTC One M9 3.75
No data
No data
No data
Samsung Galaxy S6 2.2
No data
No data
Apple iPhone 6s 1.7

Video recording is more or less disappointing. 1080p recordings are low on actual details, and the footage, as a whole, is quite jerky. That's quite unfortunate, because 4K videos recorded with the HTC One M9+ are next to unplayable on a normal computer, even with a dedicated player, whose specialty is 4K videos. Furthermore, if you're looking for seamless continuous auto-focus, this isn't the phone for you. Looking at its responsiveness and accuracy, it's probably for the better that this feature is disabled by default.


Zombie screen meets above average sound qualities.

In terms of size, the 5.2” display is, naturally, well suited for video watching on the One M9+, but its bluish/greenish tone really takes away from the fun of it all. Of course, this applies to games and any other type of visual media as well.

A long-time signature feature of high-end HTC phones, the BoomSound stereo speakers are alive and well in the One M9+. Their positioning creates a nice, full audio scene which helps get the user immersed in the content they are enjoying. Sound quality could be better, deeper, but at least the speakers tend to sound clear enough, making them a better choice over those of the Xperia Z5, for example. The earphones bundled with the One M9+ are of the in-ear type. They are not too bad, but have that uber-low, bassy, even muddy type of sound that drowns everything in low frequencies, so music doesn't sound as clean and bright as it should. We enjoy bass, but not when it's so out of balance.

Headphones output power (Volts) Higher is better
HTC One M9+ 1.09
HTC One M9 1.022
Samsung Galaxy S6 0.54
Apple iPhone 6s 0.986
Loudspeaker loudness (dB) Higher is better
HTC One M9+ 70
HTC One M9 72.8
Samsung Galaxy S6 73.7
Apple iPhone 6s 69.6

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