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Highly Accurate - 98 to 99% - Yamax Power Walker EX-510
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- Highly Accurate - 98 to 99%
- Japanese design - Works in any position
- Features include: steps, distance, stride, calories and fat burned, 30 day memory, and clock
- 1 Year battery life
- 1 Year warranty
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3D Accelerometer Sensor filter In order to recognize actual walking activity, 3D sensor has 11 steps filter.If you move less than 11 steps and take about 5 seconds no-motion break, previous 11 or less steps will not be counted. This device can store up to 30 days of memory data and 30 weeks of accumulated weekly data. Each of number of steps, calorie, fat burn, distance walked and activity time are stored in memory at 2:00 am after midnight every day. Accumulated Week Data will be stored from Monday to Sunday up to 30 weeks.
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The price is right, the unit tracks the important statistics, such as mileage, number of steps, calories burned, and more. The unit saves 30 days of data, and 30 weeks of summarized data. You can't go wrong with the Power Walker. I have a phone app which acts as a pedometer, which I used as a comparison against the Power Walker. The app skips steps when it increases. The Power Walker does not miss a single step. It is very impressive. Plus the automatic reset of stats at 2AM is pretty sweet.
This is definitely a unit to own if you are seeking a method of measuring steps per day, which in turn will give you incentive to walk more.
Returned it to WalMart and ordered this one from Amazon.
Three trials of 1,000 steps yielded 1,000 / 998 / 1001. Pretty good and maybe I miscounted in my control count.
Lots of other features that make it well worth the price.
Setup should be trivial but was confusing for some reason. There is a Reset button for setting (!) the parameters and a Select button to confirm.These 2 buttons separate each setting, e.g. hours - confirm then minutes - confirm. But no separation between lbs and # of lbs. No idea what I did to make it work, may be the manual is wrong, but you will figure it out, not that many buttons.
N.B. It's true what people said about the Reset button being too easy to accidentally trigger. I ended up taping off the buttons completely.
I like the RESET to ZERO function. Here are my personal observations.
The EX-510 is much more accurate when hung on a necklace than it is when kept in a pants pocket. Contrary to how the directions say to calibrate the pedometer this is what I did. I counted my steps as I walked for 100 steps. Then I looked at the EX-510 step count. If it was higher than 100, I increased the stride length setting. Then took another 100 step walk. If the pedometer counts lower than 100 then lower the stride length setting. Repeat the 100 step walk adjusting the stride length setting until you get it close to 100. Reality is nothing is perfect. Your stride is probably not exact each time you step especially if you change speeds frequently.
I'm still running tests each day but so far the step count for a 2 mile walk seems off at 4,250. That would be close to a real stride length of 2.5 which might be right but I have the pedometer set currently set to 3.5. Secondly, the distance indicator is way off. It is no where near accurate for a 2 mile walk. These measurements were taken while walking on flat ground with the pedometer hanging on a necklace directly over my chest. I will continue to experiment with this questionable device.
Now for those who could care less about step accuracy. You can use plain math and no pedometer to get to say 7,000 to 10,000 steps per day. This is me: I'm 6 feet tall. I walk at a pace of about 20 minute miles. 4 miles per day equals 80 minutes of walking. The average stride length is between 2 and 3 feet. So 21,120 feet (4 miles) divided by 2 or 3 ft. stride gets you in a range of 7,040 to 10,560 steps. I might raise my star rating in the future but for now I'm disappointed especially how they brag about its accuracy.
Some people like to wear their pedometer all day. If you do that I doubt any pedometer is smart enough to give you an accurate step count. If you don't believe me, then see how many steps your pedometer counts when you drive your car! My friend has a FitBit. She is also frustrated with its inaccurate distance and step count measurements. I guess the name is 'fitting'. You'll have a fit when you use it. I really hope I can come back to this review in a week or so and eat crow but when it comes to distance measurement being off - come on! I tested the distance with a car and a GPS device. They were both dead on. Not these gadgets.