Very good92/100

Medisana's model is close to the top of the test field and offers a sharp display with stable viewing angles. The given setting options are okay, the single button switches through all variants quickly. With wrist strap, without bag.
The device for measuring blood oxygen saturation and heart rate is officially certified as a medical device in accordance with the MDD directive.
The device switches off automatically after 8 seconds, thereby conserving the batteries.
Operation is straightforward via a single button and an OLED display with 10 adjustable brightness levels for excellent readability.