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I do not have a 625M but 625XT myself and the 580P is better for cycling: Clearer screen, more fields speed/cadence etc.
HR band should be included with the package. The 580P uses an ANT+ band, similar to the major competitors (so it is different from the 625M).

The 580P is not the best match for running though, the GPS SW is optimized for bike "movement" so the pace is not presented well. If you keep the device in the pocket, the GPS coverage seem to suffer too.

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51 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Re: My GB580P rattles inside on: May 14, 2013, 04:52:20 am
Started by korivo - Last post by GS_TECH01
Dear Korivo our sales department suggested you contact your dealer first from Amazon.com thank you and have a nice day Best Regards, Angela

52 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Re: Correct date and time on: May 14, 2013, 03:37:26 am
Started by stelvio03 - Last post by GS_TECH01
Dear Andrea If your device pop a message "Reset GPS ?" that meaing device is cold start device's time and date will rest to default value then you need to sync device with satellites I hope that will answer your questions if you have any question，please don't hesitate to let me know~~ Thank you and have a nice day Best Regards, Angela

53 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Correct date and time on: May 14, 2013, 01:59:40 am
Started by stelvio03 - Last post by stelvio03
Hello everybody, I have a very simple question about date and time settings: is there a way to save the correct date and time or do I need to sync them with satellites everytime I switch the device on ? Thank you Andrea

54 USGlobalSat GPS Forums / Globalsat GH-625 SiRF III Sports Watch GPS data-logger / Re: Problem during the download data process GH-625M on: May 13, 2013, 09:30:28 pm
Started by Rafita - Last post by GS_TECH01
Dear Rafita Sorry for late reply~ because we can't duplicate your problem so, can you provide the file which one you said stop at 22% when you upload from your device to pc ?? my email is angela.wang@globalsat.com.tw Thank you and have a nice day Best Regards, Angela

55 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Re: My GB580P rattles inside on: May 13, 2013, 08:51:16 am
Started by korivo - Last post by korivo
Canada, Quebec

56 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Re: speed/distance spike on: May 13, 2013, 08:21:17 am
Started by FreightTrain - Last post by FreightTrain
would this possibly be an indication of low battery in the speed sensor? Based on your experience what is the normal lifespan of the batteries in the sensors? I only have 21 rides and a total of 277.22 miles on the unit.

57 USGlobalSat GPS Forums / Globalsat DG-200 SiRF III GPS DataLogger / Re: DG-200 Communication Specifications on: May 13, 2013, 04:01:40 am
Started by Rodney - Last post by GS_TECH01
Dear Can you give me your E-mail ?? i will mail to you ~~ Thank you and have a nice day Best Regards,

58 USGlobalSat GPS Forums / Globalsat EM-406 SiRF III GPS module / Re: No fix sentence from receiver on: May 13, 2013, 03:30:18 am
Started by karpediemnow - Last post by GS_TECH01
Dear Karpediemnow It sounds great !! Thank you for your share ~~ Have a nice day Best Regards, Angela

59 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Re: My GB580P rattles inside on: May 13, 2013, 01:26:23 am
Started by korivo - Last post by GS_TECH01
Dear Korivo Where you lived (Country and City) ?? Thank you and have a nice day Best Regards, Angela

60 USGlobalSat GPS Forums / Globalsat GB-580 SiRF III Sports GPS Cycling Computer / Re: GH 625M to GB-580P Upgrade ?? help on: May 11, 2013, 03:53:14 pm
Started by CarlosCorreia - Last post by gerhard
I do not have a 625M but 625XT myself and the 580P is better for cycling: Clearer screen, more fields speed/cadence etc. HR band should be included with the package. The 580P uses an ANT+ band, similar to the major competitors (so it is different from the 625M). The 580P is not the best match for running though, the GPS SW is optimized for bike "movement" so the pace is not presented well. If you keep the device in the pocket, the GPS coverage seem to suffer too.