![Josh Pigford on Twitter: "Started low heart rate training the other day. Keeping my heart rate in the “stamina” (aerobic) zone takes way more focus than I thought it would. I end Josh Pigford on Twitter: "Started low heart rate training the other day. Keeping my heart rate in the “stamina” (aerobic) zone takes way more focus than I thought it would. I end](https://pbs.twimg.com/media/DiMEZx_U8AEHE9y.jpg)
Josh Pigford on Twitter: "Started low heart rate training the other day. Keeping my heart rate in the “stamina” (aerobic) zone takes way more focus than I thought it would. I end
![I wasn't aware that the low heart rate warnings are going to be available on older models, too. Just noted the feature on my S3 running watchOS 5 GM. Thought it would I wasn't aware that the low heart rate warnings are going to be available on older models, too. Just noted the feature on my S3 running watchOS 5 GM. Thought it would](https://preview.redd.it/srcrs2a297m11.jpg?auto=webp&s=a5cbb80d2ce092a0ee050e74e074c091800017de)
I wasn't aware that the low heart rate warnings are going to be available on older models, too. Just noted the feature on my S3 running watchOS 5 GM. Thought it would
![What to Do When You Get a Low Heart Rate Notification on Your Apple Watch « iOS & iPhone :: Gadget Hacks What to Do When You Get a Low Heart Rate Notification on Your Apple Watch « iOS & iPhone :: Gadget Hacks](https://img.gadgethacks.com/img/78/32/63680288809170/0/what-do-when-you-get-low-heart-rate-notification-your-apple-watch.w1456.jpg)