The monitor seems to be fine when the pulse was around the resting rate but can't keep up when the heart rate climbed with exercise. Can't blame sweating or finger movement as I was cycling indoors on a trainer and wasn't even sweating when the monitor started to lag behind.I even kept the hand off the handlebar to minimize any movement.The gap in reading was especially pronounced in the beginning as the heart rate rapidly climbed.Around the true rate of 50's to 70's the monitor seemed accurate.However, by 90's it was about 20 behind, and by 130, it was at least up to 40 to 50 behind. With steady exercise, the gap gradually narrowed, but at a steady rate of 150's the reading was still about 20 to 30 behind and then would drop down to 70 to 90s for many minutes.When my heart rate climbed to 160 to 180s, the reading became totally unreliable.I tried holding the sides of the ring to keep the sensor steady, using different fingers, and repositioning the sensor etc. but didn't make any difference.The sensor and the light (infrared?) source are on each side of the ring and am guessing that they detect the change in light transmission through the finger as the blood flows through the fingers.The reading isn't instantaneous but seems to take an average or a reading every few seconds.It'd have been fine if the readings were accurate.
Click Here to see more reviews about: LifeSpan Fitness Heart Rate Monitor Ring (Colors may Vary)
Product Description:
The patented LifeSpan Heart Rate Ring provides constant heart rate monitoring thru the use of patented infrared technology. Unlike other heart rate monitors the one size fits all LifeSpan Heart Rate Ring does NOT require a cumbersome and uncomfortable chest strap! Simply wear the ring and your heart rate is displayed! The LifeSpan Heart Rate Ring also comes with features such as a stopwatch, clock and Min / Max heart settings with audio beeps for ease of use. Also, standard with the Heart Rate Ring is a spare lithium battery, acrylic storage case, lanyard and silicone insert that provides proper fit for all sized fingers. Users prefer to wear the ring on their thumb providing easy view when arms are swinging during walking, jogging, running and other activities. Colors may vary (red or blue).
No comments:
Post a Comment