I bought a Motorola Motoactv device last year but that performed even worse under humid conditions, actually letting water into the device, so I gave that away to a friend who had just taken-up running. Calm down, calm down, I know what you are thinking, why would I give a useless device that is even worse than Garmin 405 to a friend? Well, he lives in Russia so the humidity issue shouldn't be a problem.
Despite taking it very easily recently, I have been confused by my HR readings which have been pretty high whilst running at low-moderate effort. I feel fine, but the data from my device suggests otherwise. Apart from being a very bad advert for Garmin running with its performance device in my hand, to make matters worse I am now running in a very negative frame of mind due to the numbers on display. I have changed the battery, often a cure for strange feedback, but this isn't the reason. The device is 5 years old. The HRM monitor - I bought a new one about a year ago. I am wondering if the device is past its shelf life and should I upgrade? I am not sure about the HRM though, whether humidity is affecting this?
It's a case of once bitten, twice shy as far as Garmin is concerned. I have thought about upgrading to a 610, but I am not sure if that will function properly in SE Asia? The question I am putting out there is: will any GPS device function properly in such conditions? Perhaps a 910 (designed for running, cycling and swimming) will work best in Thailand. If anyone has any insights please share them.
The hot season is comming to an end and there have been a few cloudy days lately which have taken the edge off the high temperatures. It remains incredibly humid, though. After three very low volume recovery weeks (13, 32, 33 mi), Melbourne Marathon training has started today. The HR issue has been troubling me, but I feel absolutely fine within myself. I have 21 weeks until race day so there is plenty of time to prepare. The rest of May and June will be primarily for base building. I'm running in the Phuket Marathon on 9th June, but this one is strictly a low-intensity training run.
* Updated 21/5/2013 - with almost uncanny timing, the morning after I wrote this post, the plastic buckle on the HRM strap snapped, so now I have a dodgy device and no HRM. I think I may have to go shopping.
Tues 14 May - 10.5km/6.52 mi moderate effort in 53:19 @ 5:05/8:10 pace [Bangkok/start 06:45/29c] HR128
Fri 17 May - 11.27km/7mi moderate effort in 58:00 @ 5:09/8:17 pace [Bangkok/start 06:45/31c]
Sat 18 May - 10km/6.21mi moderate effort in 50:53 @ 5:05/8:11 pace [Jomtien/start 17:54/32c] HR139
Sun 19 May - 13km/8.08mi hills in 1:06:43 @ 5:08/8:16 pace [Jomtien/start 12:32/32c] HR141
Week [Mon-Sun]: 53km/33mi