Dropping the phone: Some models of smartwatches in the Samsung and Apple line-ups feature a mobile network chip, allowing you to plug in a micro SIM card to make and receive calls, texts and emails and access the internet without being paired to your phone. It sounds great, but remember that the smartwatch has a very small battery, so relying on it for communications will drain the power quickly.
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The top smartwatches that debuted at the 2017 Consumer Electronics Show included the Casio WSD-F20, Misfit Wearables Vapor and the Garmin Fenix 5 series. Apple released on September 22, 2017 their Apple Watch Series 3 model which offers built in LTE cellular connectivity allowing phone calls, messaging and data without relying on a nearby smartphone connection. 
The Sofie, on the other hand, is designed for women with jewelry inspired accents. It has a smaller 1.19 inch 390×390 AMOLED display, and a smaller casing at 42mm. As mentioned, pricing starts at $350 for either variant and goes up depending on options. Sales are available from MichaelKors.com (Grayson — Sofie) and also from outlets such as Amazon. (Grayson — Sofie)
The screen is great, and the pre-installed watch faces make it stand out from rivals. Android Wear feels very samey across all devices, but it's a well developed OS. It's reasonably intuitive and simple, but there's a little too much swiping and tapping on the small screen. It also works across both Android and iOS, although iPhone functionality is limited (no apps etc.)
Samsung’s new Galaxy Watch is the one to get if you need a smartwatch that can do it all. In our full review, we mentioned that it’s a fantastic all-around smartwatch, fitness, and health tracker. It has a great display, solid build, comes with Samsung Pay support, and offers wireless charging. Plus, the Tizen operating system has tons of great apps and watch faces.
Aside from its jack-of-all-fitness-trades, master-of-none nature, the Gear Sport has other drawbacks. Chief among them is that voice dictation is significantly less reliable than on the Apple Watch or Wear OS and is best used for short phrases and quick replies. Then there’s S Voice, the digital assistant that can’t do much—and you probably don’t have time to learn how to make it do the few things it can do. And major apps still do not have a presence in Samsung’s marketplace—the Sport runs Samsung’s Tizen operating system instead of Wear OS—so any app or device you want to control directly on your phone is a gamble on an indie developer having the same need.
The Samsung Gear S3 was our prior pick for Samsung phone owners because of its smooth dial rotation and interface. But it was notably large, with a 46 mm face, and the Frontier model was half an inch thick, notably bulky even for a smartwatch. The Gear Sport, our runner-up pick, is less bulky, less expensive, less overtly masculine-styled, and provides most of the same features, minus the LTE option.
Of the three second-generation Samsung smartwatches, the Gear Fit is the most creative and stylish departure from the original Samsung Galaxy Gear. It's just as much an activity monitor as it is a smartwatch, and it has a markedly new look—slim, sleek, and light. It also has an unconventional sideways display that’s unlike any of the other tested watches; it takes a bit of wrist-twisting to view it. (You can opt to view your display vertically, but you'll be reading a lot of truncated words that way.)
In 2013, the claim to first ever smartwatch to capture the full capability of a smartphone was laid by startup Omate with the TrueSmart. The TrueSmart originated from a Kickstarter campaign which raised over 1 million dollars, making it the 5th most successful Kickstarter to date. The TrueSmart made its public debut in early 2014. Consumer device analyst Avi Greengart, from research firm Current Analysis, suggested that 2013 may be the "year of the smartwatch", as "the components have gotten small enough and cheap enough" and many consumers own smartphones that are compatible with a wearable device. Wearable technology, such as Google Glass, may evolve into a business worth US$6 billion annually and a July 2013 media report, revealed that the majority of major consumer electronics manufacturers were undertaking work on a smartwatch device at the time of publication. The retail price of a smartwatch could be over US$300, plus data charges, while the minimum cost of smartphone-linked devices may be US$100.