I bought this to compare to a competitive product that I have used for the past 5 months and have found that the Biostrap is more convenient and comfortable to wear and use. Charges faster and holds longer and the data is more comprehensive. The only "however" is the activity recording being a manually initiated process. I have multiple training apps and I would like to be able to import the data from those into the Biostrap or have automatic recording of activities. All metrics seem to be accurate with no outlying data so far but that manual recording of activities needs to be addressed in the software.