from total time, lap time, HR or time of day.Contact: 0800 056 1640; www.nike.comReebok Precision Trainer £129.99Displays both HR in beats per minute and as a percentage of maximum HR.Press a single button while running and watch scans through maximum

. She completed her 2004 marathon, before she'd trained with an HRM, in 4:05. One year later she'd improved to 3:47, now boasts a best of 3:31 and is aiming to run under 3:15 at the Abingdon Marathon in Oxfordshire this October. "I've graduated from base

with an HRM, in 4:05. One year later she'd improved to 3:47, now boasts a best of 3:31 and is aiming to run under 3:15 at the Abingdon Marathon in Oxfordshire this October. "I've graduated from base training and now know all the heart rates I need to train

for the tiny-fingered. Pros Big digits; good looking; great valueCons Small buttons; cloth strap ContactsAdidas; 0161-419 2500Nike; 0800-056 1640Polar; 01926 310 330Timex; 020 8326 6900