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Introducing the Ultrahuman Ring Air, the ultra-comfortable fitness wearable. With its notch-free, ultra-thin design and smooth inner shell, the Air Ring offers unrivalled comfort day and night. It is characterised by sleep tracking and ensures a comfortable and unobtrusive experience. Weighing just 2.4 grams, it is the lightest smart ring on the market. This sleek device combines minimalism with precise performance, allowing users to effortlessly monitor sleep, movement, heart rate, heart rate variability and skin temperature.The sleep index was derived to help you understand the different sleep stages such as deep sleep, REM sleep, light sleep and wakefulness. During different sleep stages,…

Movement: Quartz, Display: Analog
Case Material/Color: Steel/Gold
Strap Material/Color: Rubber/Black
Size: 15 mm.

For the last four years, Cressi's Leonardo diving computer series been very well received by amateurs and professionals due to its excellent performance in all conditions. Designed for professional diving, the first dive computer of this well-known Italian company has a low relief ergonomic profile to facilitate its use in all kinds of circumstances, as well as to avoid tripping and snagging in the depths.As would be customary on the next Cressi diving computers, the Leonardo has a large User-Friendly Display System (UFDS) , designed to present information in an intuitive and organized way with high contrast digits and separation lines. With three modes (dive, depth gauge and clock), this computer …