Camera speed - confusing information

dalmaciovelez

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Dec 10, 2014
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I would like to find reliable information about camera speed. By that I mean overall camera speed, including camera app startup speed, focusing speed and shot-to-shot latency.
The information I have found so far is, in my view, slightly contradictory.
The only systematic collections I am aware of are on phonearena.com (where they measure the camspeed benchmark) and anandtech (where they measure, for some phones, "camera shot latency" and "camera focus latency").

Even these sources sometimes contradict each other: For example, the OnePlusOne is listed (based on its camspeed performance) as a rocket in phonearena.com whereas acording to Anandtech, shot and focus latency are just average. By contrast, the Samsung Galaxy Note 4 has a rather mediocre camspeed score but performs well on Anandtech.

I am aware that camera speed can vary according to the circumstances. However, I would appreciate some advice or comments as to the following:

1. The iphones (which I must rule out for different reasons) seem to be consistently among the fastest, if not the fastest, devices.
2. The HTC One M8 is reasonably fast (albeit, according to some, at the cost of offering mediocre quality).
3. Low light speed largely depends on the aperture size. I have the LG G3, which only has a 2.4 aperture, and it is extremely slow in low light. Not the focus, of course, but the shot latency (several seconds to save the image and being ready again).
4. Is the Huawei Ascend Mate 7 really such a camera speed rocket as its camspeed score seems to suggest?
5. Is the Sony Xperia Z3/Z2 faster in low light than the S5 etc. because of its 2.0 aperture? Is this, at least in principle, generally true of f2.0-apertures?

I have tried out some of the above phones in stores, but that was rather inconclusive.
Thanks in advance for any advice/suggestions.
Cheers
Dalmacio Velez