These are watches designed to help you reach your goals and train for longer distances, compared to trackers to simply tell you what you went through that day.

Compared to its predecessor, the design did not change much. The device still packs a monochrome screen and five button-based operation. The body is also waterproof, and overall remains specially designed for serious runners.

That might be the question.

• why should you choose this M430 if there is a M200 that is only worth $ 150? The answer is related to the performance of the heart rate sensor. Armed with a total of 6 LEDs, M430 can provide more accurate measurement results than the M200 which only packs 2 LEDs only.

• M430 is also superior about battery, In normal position, the battery can last up to 20 days. When GPS and its heart-rate monitoring is on, the device can operate for up to 8 hours.

• M430 provides a number of GPS modes so that the endurance of the battery can be jacked up to nearly 30 hours.

feasible to try for you serious runner?