Wahoo TICKR X Heart Rate Monitor with Memory, Bluetooth/ANT+

Amazon.com Price: $133,99 (as of 15/06/2021 16:56 PST- Details) & FREE Shipping.

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Personalized Heart Rate Training – workout efficiently – track and capture real-time heart rate, training zones and calories burned on your smartphone or tablet with compatible training apps.
Capture workout data and sync later – built in memory gives you the freedom to train without a phone.