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Fitbit Alta HR fitness tracker wristband showing heart rate monitor display. The Fitbit Alta [41] was released in February 2016. The wristband offers a full OLED screen that can be tapped for reminders, a clock and smartphone notifications. While not a touch screen, it is interacted with by tapping the band, similar to previous models.
The Fitbit Charge 3, a wristband health and fitness tracker introduced in October 2018, was the first device to feature an oxygen saturation (SPO2) sensor; however, as of January 2019, it was non-functional and Fitbit did not provide an implementation timeline. [44] The Fitbit Charge 3 comes with two different-sized bands: small and large.
The first digital watch was the Pulsar, introduced by the Hamilton Watch Company in 1972. The "Pulsar" became a brand name, and would later be acquired by Seiko in 1978. In 1982, a Pulsar watch (NL C01) was released which could store 24 digits, likely making it the first watch with user-programmable memory, or the first "memorybank" watch.
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User's guide for a Dulcitone keyboard. A user guide, also commonly known as a user manual, is intended to assist users in using a particular product, service or application. It is usually written by a technician, product developer, or a company's customer service staff. Most user guides contain both a written guide and associated images.
Actigraphy is a non-invasive method [1] of monitoring human rest/activity cycles. A small actigraph unit, also called an actimetry sensor, [2] is worn for a week or more to measure gross motor activity.
Companies are ranked by total revenues for their respective fiscal years ended on or before March 31, 2023. [1] All data in the table is taken from the Fortune Global 500 list of technology sector companies for 2023 [2] unless otherwise specified.
The following is a list of on-demand music streaming services.These services offer streaming of full-length content via the Internet as a part of their service, [1] without the listener necessarily having to purchase a file for download. [2]