A smartwatch looks like a digital clock that you wear on the wrist. But it has many more functions than just the time and / or date indication. Smartwatches have a touchscreen display and they also communicate wirelessly with a smartphone. Consequently, they also contain extra soft- and hardware that you can not find behind the mechanism of an ordinary digital clock.
Wearing a smartwatch means no less than having to carry a mini-computer around your wrist every day. “Carry” is a heavy word because a smartwatch weighs barely 50g to even half. Just like the accompanying smartphone, it also has a touchscreen interface that lets you switch from time / date to heart rate monitor, GPS, calendar, thermometer, barometer, weather forecast … and more, all depending on the model. The corresponding smartphone app provides management and telemetry (such as long-term biomonitoring). Some smartwatches function as portable media players, with FM radio and playing digital audio and video files via a Bluetooth headset. Other models, called “watch phones” (or vice versa), have mobile cellular functions such as bubbles.
The internal hardware
Although the internal hardware varies, most have an electronic visual display, LCD with backlight, OLED or Hologram. Some use transflective or electronic paper to consume less electricity. The food is usually a rechargeable lithium-ion battery. A smartphone can also work with a lot of peripherals such as digital cameras, thermometers, accelerometers, pedometers, heart rate monitors, altimeters, barometers, compasses, GPS receivers, miniscule speakers. Also microSD cards or what a regular computer as a storage device recognized.
Software can include digital maps, planners and personal organizers, calculators and different types of dials. The watch may communicate with external devices such as sensors, wireless headsets or a heads-up display. Like other computers, a smartwatch can collect information from internal or external sensors and can control or retrieve data from other instruments or computers. The software supports wireless technologies such as Bluetooth, Wi-Fi and GPS for each model. the smartphone functions as a “watch office” or a front-end for a remote system with which the smartphone communicates.
With regard to their design, battery capacity and health-related applications, smartwatches are improving. Since 2010 the modern smartwatch has to do less with a number of tasks such as calculator, translation and gameplay. This means more intensive functionality closer to smartphones, including mobile apps, a mobile operating system and WiFi / Bluetooth connectivity.