Smartwatches are Wearable Computing Device that looks like a wristwatch or other timepiece.

 

Smartwatches 

Smartwatches are wearable computer devices that look like wristwatches but include additional functionality including weather updates, texting, call making, internet connection, Bluetooth, GPS, and more. It also has a voice message answering service and a fitness monitoring app.

A smartwatch is a watch-shaped wearable computer; current smartwatches have a local touchscreen interface for daily usage, while an attached smartphone app offers administration and telemetry (such as long-term biomonitoring). While early versions could do simple activities like computations, digital time telling, translations, and game play, Smartwatches in the 2010s offer more general capabilities similar to smartphones, such as mobile apps, a mobile operating system, and WiFi/Bluetooth connection. Some smartwatches operate as portable media players, featuring FM radio and Bluetooth headset playing of digital audio and video files. Some variants, known as watch phones (or vice versa), have mobile cellular functions like as call making.

While internal hardware varies, most contain a backlit LCD or OLED electronic visual display. [4] To save energy, some people utilise transflective or electronic paper. They are typically powered by a lithium-ion rechargeable battery. Digital cameras, thermometers, accelerometers, pedometers, heart rate monitors, altimeters, barometers, compasses, GPS receivers, small speakers, and microSD cards, which are recognised as storage devices by many different types of computers, are examples of peripheral devices.

Digital maps, schedulers and personal organisers, calculators, and numerous watch faces are examples of software. External devices like as sensors, wireless headphones, or a heads-up display may connect with the watch. A wristwatch, like other computers, may receive information from internal or external sensors and manipulate or retrieve data from other instruments or computers. Wireless technologies such as Bluetooth, Wi-Fi, and GPS may be supported. A "watch computer" acts as a front end for a remote system such as a smartphone for several functions, interfacing with the smartphone through different wireless technologies. Smartwatches are improving in terms of design, battery capacity, and health-related applications.  Health-related apps include those that measure heart rate, SpO2, exercise, and so on.

The Hamilton Watch Company's Pulsar was the first digital watch, debuting in 1972. "Pulsar" became a brand name that was eventually purchased by Seiko in 1978. A Pulsar watch (NL C01) that could store 24 digits was produced in 1982, making it most likely the first watch with user-programmable memory, or "memorybank" watch. 1984, Seiko Data-2000 with docking station. When personal computers were introduced in the 1980s, Seiko began to build computers in the shape of timepieces. For data input, the Data 2000 watch (1983) had an external keyboard. Electro-magnetic coupling was used to sync data from the keyboard to the watch (wireless docking). The term is derived from its capacity to hold 2000 characters.