Tablets forum

General discussion

tablets sensors and GPS accuracy : where is the real data?

by Decca64 / March 22, 2013 10:48 AM PDT

After a very, very long and exhaustive Google search (and I have a PhD in Google searches), here is the awful truth:
Impossible for the average customer to compare the quality, accuracy, precision, refresh rate, or any other characteristic of all the tablets on the market, android, iStuff or anything else when it comes to SENSORS and GPS.
(I mean: without having to search and download all kind of technical documents intended to be understood by a minority of specialist)

Of course, why would we need to know whether the GPS chipset in a nexus 10 has a refresh rate of 1hz, 5hz or 10hz? I mean, who cares? it has a GPS, period.

Who needs to measure the accelerometer, gyro, compass accuracy? It is good enough to play Angry Birds 3D, that's all we ask for.
But well, here I am, looking to use a tablet away from my couch, and needing to know this kind of information. So, who do I have to pay to steal this secret information and put it in a table somewhere, so people finally know what kind of performance they can expect from their tablet?

Before this topic takes an ugly turn, I would like to mention that I am not planning to discuss the fact that such tablet has a GPS, A-GPS, Glonass, such doesn't, yes it works without service or coverage, no it doesn't. What I am interested in knowing, backed up with figures, links, data, etc. is:
- what is the maximum refresh rate of the current tablets equipped with a GPS?
- Can this rate be modified, optimized, without looking under the hood? To be adapted to the speed of the activity?
- how accurate are these devices to record quick and sudden acceleration and deceleration?
- how and where can these performances be compared between tablets?

Hoping that you guys are smarter than I am and can answer some of these questions.

Post a reply
Discussion is locked
You are posting a reply to: tablets sensors and GPS accuracy : where is the real data?
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: tablets sensors and GPS accuracy : where is the real data?
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Small world.
by R. Proffitt Forum moderator / March 23, 2013 1:43 AM PDT

I go to the developer and shows and one of the shows had a talk all about the sensors. The rate changes dramatically higher when you write a native app versus the usual java code.

The developer giving the talk supplied their tests and more which was very interesting to know.

Sorry I didn't take a lot of notes but did take pictures of the slides.

And in short, they measured the results of their testing.

Hope this helps,

Collapse -
re: small world
by Decca64 / March 25, 2013 12:09 PM PDT
In reply to: Small world.

Thanks for the info. Do you know where you found this info? and about which tablet?
That's exactly what I'm looking for but I'll need more details.

Collapse -
Click on my name.
by R. Proffitt Forum moderator / March 25, 2013 2:57 PM PDT
In reply to: re: small world

Email me and I'll look around for the pictures. Sorry, that's all I can offer beyond what I noted.

-> Again, if you don't go native, you won't get the speed. I don't think why is covered in the pictures so I'll write it as best as I can in one sentence.

-> For example, a sensor rate is normalized so that all tables give about the same samples per second for the JAVA API.

The only way to get more is to go native. As a developer you know what this means.

Popular Forums
Computer Help 49,613 discussions
Computer Newbies 10,349 discussions
Laptops 19,436 discussions
Security 30,426 discussions
TVs & Home Theaters 20,308 discussions
Windows 10 360 discussions
Phones 15,802 discussions
Windows 7 7,351 discussions
Networking & Wireless 14,641 discussions


Big screens for the big game

Still looking for the best TV deals ahead of Sunday's game? Here are our top three big screen picks.