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The watch is nice enough to wear for everyday usage – it is a bit chunky but not overly so, and feels comfortable. Features like the count down timer also found a role in daily life as did the five alarms (though actually my own older, everyday watch, an equally chunky Timex Ironman Triathlon model that is no longer available, has more timer flexibility and more alarms).
The GPS antenna is a tad large and I measured it at 60mm high x 56mm wide x 25mm deep (depth and width measurements do taper down lower than these maximums but not by much). Despite its size, once it is strapped on and tucked away under a T-shirt I never registered its presence at all. Again there is just one button. Press it and it blinks red until it has acquired a signal, then it goes green. Easy. It maintained its signal well, including under trees up to two layers deep – what I’d call lightly wooded areas.
The heart rate monitor has no buttons at all. It starts transmitting your heart rate as soon as you put it on, and the watch picks up its signal and that from the GPS antenna when you press the appropriate button on it. You can use it for measuring resting heart rate very easily, and indeed probably should do so as part of a training regime.
The Data Recorder is bundled with some software for PCs called Timex Trainer to which you download data for long term recording and analysis. You don’t have to do this after each training session as the Data Recorder has enough memory to store several sessions at once. You get a USB cable for the job. It isn’t clear whether this is USB 2.0 or 1.1, but frankly the data chunks are so small that it doesn’t really matter.