Go Back   Android Forums > Android Discussion > Android Lounge
Android Lounge A place for general Android discussion and questions.

Get excited for the Samsung Galaxy S5! Find everything you need and discuss it in our Galaxy S5 Forum!

test: Reply
 
LinkBack Thread Tools
Old March 3rd, 2012, 01:34 AM   #1 (permalink)
Junior Member
Thread Author (OP)
 
Join Date: Mar 2011
Posts: 53
 
Device(s):
Carrier: Not Provided

Thanks: 6
Thanked 4 Times in 4 Posts
Default Smartphone GPS performance: Some are better than others

I compared two aGPS enabled smartphones using Endomondo as the same GPS app and the results are surprising!

Device 1: Huawei Ideos U8150 (528 MHz CPU, Android 2.2)
Device 2: Motorola Defy+ (1GHz CPU, Android 2.3)

Spec sheet comparison:
Motorola DEFY+ vs. Huawei U8150 IDEOS - GSMArena.com

Ideos:




Defy+:






Ideos:




Defy+:





If you look closely at the Defy+'s tracks, the trail seemed to stray away from the actual street on at least 4 instances.

Both devices were contained in a single pouch near my chest riding on my scooter.

Gundam168 is offline  
Last edited by Gundam168; March 3rd, 2012 at 01:36 AM.
Reply With Quote
sponsored links
Old March 3rd, 2012, 01:51 AM   #2 (permalink)
Junior Member
Thread Author (OP)
 
Join Date: Mar 2011
Posts: 53
 
Device(s):
Carrier: Not Provided

Thanks: 6
Thanked 4 Times in 4 Posts
Default

In case you missed the difference:


Gundam168 is offline  
Reply With Quote
Old March 3rd, 2012, 02:14 AM   #3 (permalink)
Killer Psychologist
 
chanchan05's Avatar
 
Join Date: Jun 2011
Gender: Male
Posts: 10,776
 
Device(s): Samsung Galaxy SL (I9003), Samsung Galaxy Tab 7.0 Plus (P6200), Samsung Galaxy SIII mini (i8190)
Carrier: Not Provided

Thanks: 140
Thanked 2,335 Times in 1,939 Posts
Default

Its not surprising, even with the same app. You did not take into account that they may not be using the same GPS antenna hardware. Then you also forgot that the Defy is built to be for rough handling so there will be other stuff like reinforcements inside and waterproof coatings over the chips. Then you have to take into account the Android OS customizations the OEMs did if that may have affected GPS calculation algorithms of the device.
__________________
https://shared.com?ref=51950 100GB free storage. WOW.

Worried about your health? Take the True Health Assessment now! Click HERE
chanchan05 is offline  
Reply With Quote
The Following User Says Thank You to chanchan05 For This Useful Post:
Gundam168 (March 7th, 2012)
Old March 3rd, 2012, 04:07 AM   #4 (permalink)
Junior Member
Thread Author (OP)
 
Join Date: Mar 2011
Posts: 53
 
Device(s):
Carrier: Not Provided

Thanks: 6
Thanked 4 Times in 4 Posts
Default

Quote:
Originally Posted by chanchan05 View Post
Its not surprising, even with the same app. You did not take into account that they may not be using the same GPS antenna hardware. Then you also forgot that the Defy is built to be for rough handling so there will be other stuff like reinforcements inside and waterproof coatings over the chips. Then you have to take into account the Android OS customizations the OEMs did if that may have affected GPS calculation algorithms of the device.
Interesting. Especially this...

"Then you have to take into account the Android OS customizations the OEMs did if that may have affected GPS calculation algorithms of the device."

I forgot to add that the Ideos was rooted and the Defy+ is not. The Defy+ also took twice as long to get an initial GPS fix.
Gundam168 is offline  
Reply With Quote
Old March 3rd, 2012, 04:19 AM   #5 (permalink)
!on
Senior Member
 
!on's Avatar
 
Join Date: Aug 2011
Location: UK
Gender: Male
Posts: 813
 
Device(s): moto defy, ipod touch
Carrier: 3

Thanks: 38
Thanked 119 Times in 97 Posts
Default

Would be interesting to see before / afters using the GPS Fix app from the market.
!on is offline  
Reply With Quote
Old March 3rd, 2012, 05:29 AM   #6 (permalink)
Killer Psychologist
 
chanchan05's Avatar
 
Join Date: Jun 2011
Gender: Male
Posts: 10,776
 
Device(s): Samsung Galaxy SL (I9003), Samsung Galaxy Tab 7.0 Plus (P6200), Samsung Galaxy SIII mini (i8190)
Carrier: Not Provided

Thanks: 140
Thanked 2,335 Times in 1,939 Posts
Default

Quote:
Originally Posted by Gundam168 View Post
Interesting. Especially this...

"Then you have to take into account the Android OS customizations the OEMs did if that may have affected GPS calculation algorithms of the device."

I forgot to add that the Ideos was rooted and the Defy+ is not. The Defy+ also took twice as long to get an initial GPS fix.
The Galaxy S GPS problems were fixed with the Gingerbread update, and it was fixed before by software tweaking problems.

Then back when Symbian still reigned supreme, Nokia handsets also had varied quality in terms of GPS accuracy. As I said, you have to take into account:

1. Hardware antenna used
2. build design of the device
3. OS customizations

The hardware antenna actually may have the biggest effect, since one phone may be using a weaker antenna than another.
chanchan05 is offline  
Reply With Quote
Old March 3rd, 2012, 07:59 AM   #7 (permalink)
Junior Member
Thread Author (OP)
 
Join Date: Mar 2011
Posts: 53
 
Device(s):
Carrier: Not Provided

Thanks: 6
Thanked 4 Times in 4 Posts
Default

I don't think there are specifications for GPS antennas used for smartphones to help one make an informed choice should one be on a lookout for the smartphone with the best GPS receiver.

Though several Xperia smartphones are using a combination of GPS and GLONASS receivers which they promised should be better than GPS or aGPS alone.
Gundam168 is offline  
Reply With Quote
Old March 3rd, 2012, 02:58 PM   #8 (permalink)
Senior Member
 
Join Date: May 2010
Posts: 902
 
Device(s): A bunch of phones and tablets.
Carrier: Not Provided

Thanks: 14
Thanked 257 Times in 146 Posts
Default

This is true. My old Samsung Captivate (and many of the original Galaxy S) phones where crap w/ GPS. 2 mile radius accuracy.

There should have been a mfg recall with that. My new GNEX doesn't have those problems.
mrspeedmaster is offline  
Reply With Quote
Old March 3rd, 2012, 04:03 PM   #9 (permalink)
Senior Member
 
Stuntman's Avatar
 
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 3,002
 
Device(s): Samsung Galaxy S3, HTC Desire Z, Asus Eee Pad Transformer with Keyboard Dock, Nokia N97
Carrier: Bell

Thanks: 206
Thanked 570 Times in 448 Posts
Default

I've used a Nokia N97 and an HTC Desire Z. The Nokia N97 had Ovi/Nokia maps. The maps can be downloaded ahead of time. The HTC Desire Z uses Google Maps that require network service to run.

I found that the N97's GPS and mapping software was adequate. It worked quite well on my vacation. Always got me to where I needed to go. Sometimes it takes a while to lock on. I noticed that it has difficulty locking onto my position when I am moving fast in a car. If I'm on the highway, it has difficulty locking on until I exit and slow down. When stationary, it can take up to several seconds or even longer before it locks onto my position to any great accuracy.

The GPS performance on my Desire Z is excellent. It takes only a second or 2 most of the time to lock onto my position. I had some poor performance with one of the Maps update, but the next one fixed the issue.
__________________
<\
\>tuntman
Stuntman is online now  
Reply With Quote
Old March 3rd, 2012, 06:38 PM   #10 (permalink)
Junior Member
Thread Author (OP)
 
Join Date: Mar 2011
Posts: 53
 
Device(s):
Carrier: Not Provided

Thanks: 6
Thanked 4 Times in 4 Posts
Default

GPS "afficionados" turn up their noses against smartphone GPS erroneously assuming that aGPS means you can't use your GPS where there is no network or it uses up data just to get a GPS fix. For them, it's useless as a GPS device without a network.

Please post links of articles comparing GPS performance of different smartphones whether Android or not.
Gundam168 is offline  
Reply With Quote
sponsored links
Reply


Go Back   Android Forums > Android Discussion > Android Lounge
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 11:27 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.