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It was easy to connect to the phone. Then, during use, it will become clear whether the replacement was worth it. Half a day ago, Gordon.
Watch has some very nice features including the flashlight. Sleep monitoring is not one of them. The sleep tracker report show repetitive cycles of ~20 min of light sleep, followed by 2 min of deep sleep, followed by 2 min of REM, then back to another 20-22 min of light sleep. This included times when I was up and about. I wore my old watch on my right wrist at the same time. That one reported REM, light, and deep sleep that matched my activity. Other than sleep tracking and heart rate the watch performed well. I did not try the laser treatment option. I'm not a big believer in light therapy. Delivery was excellent, exactly as scheduled. Good vendor, okay product.