There's now a heart rate monitor, as the name suggests, for tracking beats throughout the day and during exercise, a GPS monitor to keep up with your workouts and an NFC chip to enable Google Pay. Add to that the ability to take this underwater up to 50 metres, all on the top of the refreshed Wear OS, and it all rounds out as a very complete smartwatch experience.
The SmartWatch 2 is a streamlined version of Sony's first smartwatch (which went on sale in 2013) with a number of new features. The SmartWatch 2 has a thin bezel; it's almost all screen, which gives it a modern, sleek look. You choose from one of two strap designs, black plastic or black stainless steel, or you can swap those out for a leather strap in one of seven colors ($20 each). We tested the model with the plastic strap, which is light and flexible and can fit close to your wrist.
If you like traditional analog watches and want just a few smart features, the Cookoo 2 might be more appealing than its more full-featured rectangular competitors. Behind its hands is a monochrome display that delivers basic notifications: incoming calls (with Caller ID), missed calls, texts, e-mail, social media alerts (for WhatsApp, Line, QQ, WeChat, Skype, Facebook, Twitter), and calendar alerts. Just bear in mind that it's a very basic smartwatch, with little configurability.
Having a miniature computer strapped around your wrist is no longer a pipe dream. The Apple Watch and other options from popular manufacturers, like Fitbit, Samsung, LG, and Fossil, have been gunning to craft the best smartwatch. Now a few years more mature, the smartwatch market offers more than ever, whether you’re after a particular style, iOS and Android phone compatibility, or just a bunch of features.
I’ve had the Samsung Gear S3 classic for a few months now. There are lots of apps now available including a music app which allows you to save and play as many tracks as the sizeable built in memory will allow you to save to the watch. The in-built speaker is high quality for making and receiving calls and of course listening to music, but a Bluetooth headset makes all the difference.
Why we like it: Fossil’s Q Explorist and Venture watches are good-looking watches with a decent range of case and band options, and decent responsiveness and battery life—this is high praise given the current state of Android smartwatches. They can track steps, control music playback, give you turn-by-turn directions on your wrist, and allow you to respond to messages with your voice or quick-reply taps. But these two models are not unique: The Fossil Group offers an array of more than 300 smartwatches under different fashion brands—including Diesel, Skagen, Tag Heuer, Kate Spade, and Movado—that have essentially the same internal components and software, so you can pick the watch design you like best.
The LG G Watch was the first one we tried that uses Google’s Android Wear OS (the Moto 360 and Samsung Gear Live do as well). It includes Google Now, the company's Siri-like "intelligent personal assistant." Say “OK Google,” and you can do Google searches, compose texts, and make requests of your watch (“Show me my steps” or “Set an alarm”). Google Now also offers up a stream of "cards" on the watch's face, with information it determines is relevant to you. If, for example, the card tells you how many minutes it would take you to get home from your current location, you can click on the card and get specific traffic and navigation information.
The Apple Watch Series 3 is a really nice smartwatch that does exactly what it should. This is easily one of the best smartwatches on the market. It’ll give you quick access to notifications, allow you to pay with your wrist, give you turn-by-turn directions, and it’s a decent fitness tracker. In terms of design, it doesn’t feel like Apple cut too many corners with the overall look and feel of the device. Even the Sport model (the cheapest one of the bunch) feels like a well-built piece of hardware.
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. 
I go for a middle-of-the-road approach—I enable alerts for most of my installed apps, save for ones that are niche (mostly shopping apps that alert me to coupons) or ones I don't use regularly. All alerts make the Charge 3 vibrate and show the message on its screen, and all past alerts live in the notification drawer that you can access by swiping down from the top of the Charge 3's display.
Flaws but not dealbreakers: The Apple Watch requires an iPhone—if you have another kind of phone, you’re out of luck. While good Apple Watch apps are better than what you get for Android smartwatches, many are still very limited compared with their phone counterparts. And it can get annoying how aggressively the Apple Watch turns off its screen (to save energy) whenever it senses you’ve put your arm down.
Apple Watch (1st generation and Series 1) Apple watchOS No 8.2+ (1st generation) 10.0+ (Series 1) Apple S1 (1st generation) Apple S1P 4.0 LE ] From paired iPhone No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes IPX7 Digital 1.7 / 1.5 319x390 / 272x340 AMOLED 1.5 250 / 205 Lithium-ion 42 mm / 38 mm 12.46 / 12.3 36.2 / 32.9 Varies Yes Yes No
Fossil’s Q Explorist and its smaller-wrist counterpart the Q Venture are well-made, responsive, fashionable Wear OS smartwatches that offer a lot of color and band options, making them the best option around. They ably run Wear OS (more on the pros and cons of Wear OS itself in a bit) and convey your phone’s notifications to your wrist. Their buttons engage with clean clicks, the Explorist’s center crown moves through lists and notifications much more effectively than swiping, and both screens are responsive and clear.
For deeper integration with your Android phone, you can give Google's Wear OS platform a try with Fossil's $275 Q Control touchscreen smartwatch. It lacks GPS and support for NFC payments, which is why the Gear Sport is a better fitness-focused smartwatch for Android users, but Fossil's Google Assistant integration and stylish design make it a solid contender. However, smartwatches with Qualcomm's new Snapdragon Wear 3100 processor start shipping in October, so you may want to hold off until we put them to the test.