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

Amazon.com Price: $133.97 (as of 03/03/2021 01:25 PST- Details)

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.
Integrated with Bluetooth and ANT+, TICKR connects to smartphones, tablets, GPS watches and bike computers by Wahoo, Polar, Garmin, Apple and more.

(Checkout Process Will Take You To Amazon Secure Server)