Review on Refurbished Garmin Vivosmart 4 Activity Tracker - Small/Medium - Black/Slate by Melissa Anderson

Six months of constant wear and tear. With 24-hour use, the battery initially lasted seven days, and judging by the device's display, there was still some left. Now I have to charge every three or four days. Call and SMS notifications are pretty stable. I like that I can read texts on the watch. Bluetooth rarely gets lost at a distance of 25-30 meters. Heart rate and SpO2 are constantly monitored and displayed, although I don't have a convenient way to check SPO2 accuracy. The resting heart rate is very close to my normal value, about 42 beats per minute. I love the amount of vital information available in such a small, handy, WATERPROOF case. Showering, washing dishes, gardening, sports - do not affect the device in any way. Works great both inside and outside the wrist. The only thing I want is a tonometer. I might switch to another Garmin for this in the future, but that's too expensive at the moment.