Understanding the Functionality of Smartwatches: A Comprehensive Guide

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A smartwatch is a portable device that’s designed to be worn on a wrist. Like smartphones, they use touchscreens, offer apps, and often record your heart rate and other vital signs.

The Apple Watch and Wear (formerly Android Wear) models prompted more consumers to appreciate the usefulness of wearing a mini computer on their wrists. In addition, specialty smartwatches for outdoor activities often supplement other, bulkier devices in an adventurer’s tool kit.

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What Is a Smartwatch and What Do They Do?

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A Short History of the Smartwatch

While digital watches have been around for decades—some with abilities like calculators and unit converters—only in the 2010s did tech companies begin releasing watches with smartphone-like abilities.

Apple, Samsung, Sony, and other major players offer smartwatches on the consumer market, but a small startup actually deserves credit for popularizing the modern-day smartwatch.

When Pebble announced its first smartwatch in 2013, it raised a record amount of funding on Kickstarter and went on to sell more than one million units.

The Pebble smartwatch was discontinued when the company shut down in 2016, but still has a number of fans and enthusiasts who continue to use and develop for it .

At the same time, advances in silicon miniaturization opened the door to other kinds of dedicated-purpose smartwatches. Companies like Garmin, for example, support smartwatches like the Fenix, which are more rugged and optimized with sensors and trackers to support back-country expeditions.

Likewise, companies like Suunto released smartwatches optimized for scuba diving that withstand extended time at significant depths.

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What Do Smartwatches Do?

Most smartwatches—whether they’re intended for daily use (as with the Apple Watch) or for specific purposes (as with the Garmin Fenix)—offer a suite of standard features:

• Notifications : Smartphones display notifications to alert you of important events or activities. The types of notifications differ; devices connected to a smartphone may mirror the phone’s notifications on your wrist, but other smartwatches display notifications that only a wearable could provide. For example, newer Apple Watches include a fall sensor. If you fall while wearing the watch, it senses your subsequent movement. If it doesn’t detect any movement, it sends a series of escalating notifications. Fail to respond to the notification, and the watch assumes you’re injured and alerts authorities on your behalf.
• Apps : Beyond displaying notifications from your phone, a smartwatch is only as good as the apps it supports. App ecosystems vary, and they’re tied to either Apple’s or Google’s environments. Smartwatches with a dedicated purpose, such as hiking or diving, generally support the apps they need to accomplish that purpose without the opportunity to add other kinds of apps.
• Media management : Most smartwatches paired with smartphones can manage media playback for you. For example, when you’re listening to music on an iPhone using Apple’s AirPods, you can use your Apple Watch to change volume and tracks.
• Answer messages by voice : Remember the old_Dick Tracy_ comics, where the hero detective used a watch as a phone? Modern smartwatches running either the watchOS or Wear operating systems support voice dictation.
• Fitness tracking : If you’re a hard-core athlete, a specialized fitness-oriented smartwatch is likely a better choice than a general-use smartwatch. Still, many smartwatches include a heart rate monitor and a pedometer to help track your workouts.
• GPS : Most smartwatches include GPS for tracking your location or receiving location-specific alerts.
• Good battery life : Modern smartwatches feature batteries that get you through the day, with normal use, with a bit of juice still left to go. Battery use varies; the Apple Watch typically gets 18 hours of normal use on a single charge, while the Samsung Galaxy gets up to 40 hours.

Types of Smartwatches

Broadly speaking, smartwatches occupy two niches in the wearables market. First, a general-purpose smartwatch—like the Apple Watch and most Google-powered Wear devices—blend form and function.

They’re designed to replace mechanical wristwatches and are heavily smartphone-dependent. Think of them as a support device for your phone that you happen to keep on your wrist.

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You also see vendor-specific classes of general-purpose smartwatches in the consumer market:

• Apple Watch : Designed and sold by Apple.
• Pixel Watch : Designed and sold by Google, compatible with Android phones but not currently with Apple devices.
• Wear watches : Designed and sold by many vendors, using Google’s Wear operating system.
• Tizen watches : Proprietary operating system designed by Samsung for its popular Galaxy line of smartwatches.

The other niche includes specialty devices intended for specific-use cases. These devices often offer a more robust version of a fitness tracker, insofar as they bleed between a phone-dependent smartwatch and a stand-alone fitness tracker like a Fitbit.

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Examples of these specialized devices include:

• Hiking watches : Intended for remote travel and featuring solid battery life, GPS tracking and navigation, basic vitals, and weather forecasting. Often engineered for advanced durability to protect against bumps, drops, dust, and water. Examples include the Garmin Fenix 5 Plus, the Suunto 9 Baro, and the 2022 Apple Watch Ultra .
• Diving watches : Connect your first-stage regulator to a Bluetooth transmitter to use a diving watch. Garmin’s Descent Mk2i and Suunto’s DX offer depth, time-remaining, temperature, and other important indicators. And the Apple Watch Ultra can make use of the Oceanic+ Dive Computer App to calculate dive times, display a number of different stats, and can handle depths of up to 130 feet (40 meters).
• Flying watches : A niche market, but Garmin’s MARQ Aviator Gen. 2 offers a jet-lag advisor, GPS-powered moving map, NEXRAD weather reports (using METARs, TAFs and MOS2), flight logging, a barometric altimeter, and more.

Smartwatch Market Growth

Smartwatches settled into a steep growth curve in the late 2010s in terms of global market adoption. Data from Statista shows that sales rose from five million units worldwide in 2014 to an estimated 173 million in 2022.

Apple’s market share rose from 13- to 30-percent from the second fiscal quarter of 2017 to the same period in 2021. With Samsung in the second-place spot with a 10-percent market share.

During the same period, specialty vendors like Garmin saw a 4.1-percent increase in year-over-year growth, while fitness-tracker-only vendors saw a nearly 22-percent market plunge.

Statista predicts that over 253 million smartwatches will ship worldwide by 2025.

5 Things to Consider Before You Buy a Smartwatch

FAQ

• What are hybrid smartwatches?
  Hybrid smartwatches are watches with the traditional look and feel of a watch, but they also come with some smartwatch functionality. Smart features tend to be limited and rely on the use of a smartphone.
• What is the difference between a smartwatch and a Fitbit?
  Fitbits are fitness trackers, which do have functionality similar to smartwatches, but they focus on fitness-oriented features and don’t often come with the advanced features of smartwatches. However, Fitbit also offers several smartwatches, including the Fitbit Sense and Fitbit Versa models.

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