Since my daughter gifted the Apple Watch last Christmas with mere intention to improve my swim work out, I started contacting Health Department of Apple the beginning of 2021. During the period of 03/2021 to 04/2021, a California health support person first named Tony who is stationed in California contacted me and assigned a case number: [protected]. I was instructed to do all kinds of experiments in the water for several weeks. I set to four different mode: calories, distance, time and open and tried several times. Never once the apple watch in my possession recorded breast strokes. Never once the watch recorded the laps correctly; neither did the watch ever record the distance correctly. In "open" mode, it never recorded laps or distance correctly. During the experimental period Tony informed me that he discussed and sent all my records from the watch directly to Apple's engineering department. They even asked me questions like which wrist did I wear the watch, and whether I stopped during my typical 20 laps/500 yard swim work out. They even asked me to do diagnostic tests right after swimming... In the end, the response I got is that (1) they did not know why the watch did not record my breaststrokes; (2) all the inaccuracy in lap counting was within tolerance level. They never got back to me on calories (i.e. I sent them records when I set 125 target calories, the watch stopped at 110 or less, saying my target was 90% achieved). They neither got back to me regarding the distance, since most US gym pool unit is 25 yard one way. The watch never recorded distance correctly, either over recorded 50-75 yards more or 50-75 yards less. I demanded full refund of this product, based on fair practice and high moral grounds. The health support person Tony turned me down. I even said if you knew the parameters I recorded were "within tolerance", what was the reason behind asking me to do all the experiments??? I even offered to exchange a new watch, my demands got bluntly denied. I am writing this to file a formal complaint to demand full refund. Thank you.