i came 18th out of 40 something runners which i was pleased with and the time on my watch showed 26.31 for the 5k. not only are we healthier but we also spend less money. the cheapest could have a flat display, while the largest and most expensive may support 5g and carry a total of six cameras across the front and rear. i learnt many, many small things that it is not possible to learn from the little literature available to me. she said that prices were all over the spectrum. 