Battery life – it’s not a sexy sell but arguably it’s one of the most important. That’s where Coros gave the training-tool market much-needed CPR with the lower-end Pace and has extended to the pricier Apex Pro with a mooted 40hrs in training mode. Over testing, we’d reduce that to 35hrs but it’s still impressive. But at £460, what else justifies buying this over Garmin, Polar and Suunto? Well, it’s swimming in features. We’re talking the usuals of GPS and optical heart rate monitor, but also optical pulse oximeter and barometer.

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