Garmin has launched a new fitness watch for runners and triathletes, the Garmin Forerunner 745. The new device is a follow-up to the Forerunner 735XT, which launched back in 2016.

One of the Forerunner 745’s key new features is a pulse oximeter to track blood oxygen saturation (SpO2) – a very useful metric for getting a picture of your overall fitness, which is found in almost all of Garmin’s latest running watches.
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