User reviews: smart Rings

Bluetooth 5.2, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, 50 WR / 5 ATM, IP68, width 7.8 mm, depth 2.6 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), stress level, body steel, 30 WR / 3 ATM, IP68, depth 2.7 mm

Bluetooth 5.4, heart rate monitor, thermometer (body temperature), period tracker, sports modes, body titanium, 100 WR / 10 ATM, IP68, width 7 mm, depth 2.6 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, width 8.1 mm, depth 2.45 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, period tracker, sports modes, body titanium, 100 WR / 10 ATM, width 8 mm, depth 2.6 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, width 8.1 mm, depth 2.45 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, width 8.1 mm, depth 2.45 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, width 8.1 mm, depth 2.45 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, width 8.1 mm, depth 2.45 mm

Bluetooth 5.0, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, width 8.1 mm, depth 2.45 mm

Bluetooth 5.2, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, 50 WR / 5 ATM, IP68, width 7.8 mm, depth 2.6 mm

Bluetooth 5.2, heart rate monitor, pulse oximeter (oxygen), thermometer (body temperature), stress level, sports modes, body titanium, 50 WR / 5 ATM, IP68, width 7.8 mm, depth 2.6 mm