“What is the accuracy for each feature (e.g. Heart rate, step, calorie, etc)? What is the accuracy for each feature (e.g. Heart rate, step, calorie, etc)?”
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The optical HR sensor uses light to penetrate the skin and estimate the heart rate. There are tips to achieve the best available accuracy, you can find those tips here: http://support.garmin.com/support/searchSupport/simpleCase.htm?caseId={1ae59670-f437-11e4-dfa6-000000000000}&kbName=garmin The steps have a feature called Custom Step Length, this enables personalized step count. In order to use this feature, the user will need to walk or run a known distance, counting the steps it took to complete that distance. This option is recommended to achieve the most accurate information. Lastly, calories on the vívosmart HR are based on Heart Rate, Activity Class, Gender and Weight. Thank you! ~QKO
Sorry, there was a problem. Please try again later.The heart rate feature is fairly new to me, but as far as I can tell, it's pretty accurate. Steps are pretty spot on; much better than many other trackers that give you steps for shaking your wrist, applauding, waving, etc.
Sorry, there was a problem. Please try again later.I bought the VivoSmart HR a week ago to replace a fitbit charge. The HR monitor is terribly inaccurate. This morning I was 20 minutes into a rapid walk and I looked at the pulse reading and it was 81 bpm. My resting HR is 78 bpm. I tightened up the wrist band from snug to really tight and it jumped to 127 bpm. 5 minutes later I check again and it was 97 bpm. I went to an office building and walked the stairs. At the top of 5 flights of stairs I was short of breath, checked the monitor and it is at 87 bpm??? I continued walking stairs and later got a reading of 157 bpm. Save the $50 and just get the vivofit 3. I switched from fitbit because I had 2 wristbands fall apart and got moisture inside the digital readout on both, all within 18 months. I live in a 2 story house and the vivosmart often misses a flight of stairs. I walked over a ped overcrossing at highway 99, about a 30 ft change in elevation, ZERO flights of stairs registered, fitbit would have given me 3 flights of stairs. Disappointed, but having a tracker motivates me to keep walking and to stay active.
Sorry, there was a problem. Please try again later.The heart rate in workout mode is comparable to a heart rate strap. Very good. It approximates your calorie usage by heart rate and movement. Thus if you do an activity at a heart rate of 130 bpm for 40 minutes you burn real calories. The steps seem accurate for an activity tracker - it is not meant to be 100% accurate. No two people are equal. Studies show that people that base their caloric intake based on their watch gain weight.... because they get credit for sleeping and sitting. While this is obvious - If the tracker doesn't move (pushing shopping cart) - you don't get credit unless you move your heart rate up.
Sorry, there was a problem. Please try again later.Heart rate seems spot on, compared this to a Garmin chest strap, a Mio Fuse wrist based HRM and also a Basis Peak and they all seem to match well. Steps seem slightly inflated but I suspect the accuracy will improve with firmware upates. It is about 700 steps ahead of my phone step tracker, so far today my phone shows 5400 and the Garmin shows 6100, but I have other devices that would be 1000 steps higher than my phone. Not sure which is exactly accurate but to me if it is consistent that is half the battle to give you something to shoot for. Calories are always subjective depending on the manufacturer, they use different algorithms to calculate this and some put more weight on different criteria, some may put more weight on steps, where others take heart rate into account. My morning bike ride on my stationary bike shows my calories burned as 170, the garmin shows 250, but if I use my Mio Fuse with the Adidas mi coach app it shows 400. Not sure who is correct.
Sorry, there was a problem. Please try again later.The HR monitor works accurately. The stair/floor count mostly incorrect. The sync too sometime erratic. I think calorie and steps were accurate
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