A:AnswerYou can certainly use the fēnix 3for equestian training. However, the device was not designed specifically for this type of sport. Our support team ( www.garmin.com/support ) can provide some assistance with the data fields and futures. ~QKO
A:AnswerThe fenix 3 HR will offer built in optical heart rate as well as the sapphire lens. There is no need to choose between the two if you are wanting to purchase the fenix 3 HR over the fenix 3.
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