A meter clipped onto a fingertip shows blood oxygen saturation and pulse in a few seconds. Rossmax's SB100 and SB200 are basic models with no extra connections, while Medisana's PM 100 Connect passes the readings to a phone if you want to follow the values over a longer period. Finger thickness affects the result: the reading is most accurate when the sensor sits snugly on the fingertip.
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A meter clipped onto a fingertip shows blood oxygen saturation and pulse in a few seconds. Rossmax's SB100 and SB200 are basic models with no extra connections, while Medisana's PM 100 Connect passes the readings to a phone if you want to follow the values over a longer period. Finger thickness affects the result: the reading is most accurate when the sensor sits snugly on the fingertip.