The new Diesel Full Guard 2.5 has a 47mmx56mm casing which is bigger than most Wear OS watches, and there’s a 1.39-inch display at the center of that. This new refresh of the watch also includes NFC for Google Pay support, a heart rate sensor, and built-in GPS. Diesel also says this watch will last two days on a charge from the 300mAh battery. The watch also has 3ATM water resistance.
As of 4 September 2013, three new smartwatches have been launched: the Samsung Galaxy Gear, Sony SmartWatch 2, and the Qualcomm Toq. PHTL, a company based in Dallas, Texas, completed is crowd-funding process on Kickstarter for its HOT Watch smartwatch in September 2013. This device enables users to leave their handsets in their pockets, since it has a speaker for phone calls in both quiet and noisy environments. In a September 2013 interview, Pebble founder Eric Migicovsky stated that his company was not interested in any acquisition offers, but revealed in a November 2013 interview, that his company has sold 190,000 smartwatches, the majority of which were sold after its Kickstarter campaign closed.
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 touchscreen, button, and dial (what Apple calls the “crown”) help you zoom in and out and move between apps fairly effortlessly. With this easy navigation it’s easy to forget we’re typing on a screen slightly smaller than an Oreo. In particular, we loved Apple’s app homepage, which displays all of the apps as icons in a honeycomb-like display. You can use the touchscreen to move around, and the dial to zoom in or pan out, to precisely tap on the one you want.
The TicWatch Pro shares the TicWatch E model’s older processor and late arrival, and it would be just another big (45 mm case), thick (12.6 mm) Android smartwatch, if not for its trick of having an old-fashioned-looking LCD screen that the watch switches to when you’re not actively looking at it or using it. This feature extends battery life significantly, especially if you go for periods in Essential Mode, where you see only the LCD screen showing the time, date, and your step count. But the transition from the LCD screen back to a “smart” OLED screen is not smooth or quick, and if you switch the watch to Essential Mode, you have to reboot it to get back to regular smartwatch functions.
Smartwatches are still a very new thing to a lot of people, and for good reason. You don’t absolutely need one to get through the day, and some of the best smartwatches are much too expensive for many folks out there. With that said, they are good for a lot of things. They can provide you with an easy way to get information, allow you to dismiss or reply to new messages without having to pull out your phone, and much more.
If you don’t need your smartwatch to look business-casual, you want more fitness and exercise features than our top pick, or you’re a Samsung loyalist, the Samsung Gear Sport is a better pick for you. (You can use the Gear Sport with non-Samsung phones, but doing so requires that you install at least four apps.) The Gear Sport handles all the casual notification and message-triage functions of a smartwatch about as well as our top pick—with the exception of voice transcription—but it adds heart-rate monitoring, GPS tracking, swim tracking, and built-in reminders to move throughout the day. It doesn’t do all of these things perfectly, but it does just enough to make for a generally useful smartwatch, with great battery life and a clever interface.
Basically, smartwatches are wearable-technology devices that maintain a relatively persistent wireless connection to your mobile device—usually a smart phone—and can receive notifications of incoming calls, texts, instant messages, social-network updates, and more, from that device. Some can also let you accept and conduct phone calls right on the watch. And even newer models (the Samsung Gear S, for one) can act as smart phones all on their own, without needing a paired phone nearby.
Although rectangular is the most common design, there are smart watches that have a circular display similar to regular watches. The Apple Watch is only available in the rectangular design. The circular design is available in the Samsung Gear S2, Moto 360, and LG G Watch R models. Many models have changeable straps, so you can dress casual, sporty, and formal.
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.
(What you think of the Q watches’ design depends on which model you buy, and in which configuration. We tested a Q Explorist in its smoked stainless steel look and a Q Venture in rose gold with leather. But if you don’t like size of these two models or the available styles, you can buy one of more than 300 planned smartwatches from 14 of Fossil’s fashion brands and get the same technology inside, just with different cases, straps, and buttons. There are Kate Spade smartwatches, $200,000 Tag Heuer smartwatches, and many more from Diesel, Skagen, Armani Exchange, and the like, all offered under Fossil Group’s umbrella. You can probably find a smartwatch with a case, band, and look that looks like something you want to wear on your wrist every day, rather than settling for close enough. Fossil’s Q watches, though, hit a good balance of sensible and stylish, with a reasonable price to match.)
Apple Watch Series 3: If you are an iPhone user and generally exist in Apple’s ecosystem, it makes sense to get an Apple Watch. The design quality is exceptional and the Watch makes a nice pairing with your iPhone as materials and design elements are common to both. Apple’s Health app covers most of the bases when it comes to tracking your essential fitness and activity indicators - nutrition, sleep, physical exercise, but Apple has gone further with HealthKit, which allows health and fitness apps downloaded from the App Store to share data with each other. Apple has committed to Watch, and its attention to practical and eye-pleasing design as well as useful tracking features is commendable. ($529)
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 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 Q watches do not have built-in GPS or heart-rate sensors, and aside from one model (the black silicone strap Explorist), they are not made for heavy exercise tracking. The watches’ IP67 rating means that they’re dustproof and ready for rain, and that they can survive a short dunk in water less than 3 feet deep. For tracking your walking, movement, light bike rides or occasional runs or hikes, though, the watch does fine.
Aside from its display, the Ticwatch Pro is a pretty standard offering in the Wear OS world. It’s powered by the same Snapdragon Wear 2100 chipset, has a 400×400 1.39-inch OLED display, and has a 45mm casing. There’s also a 415mAh battery inside which charges with a magnetic charger. There’s also IP68 water/dust protection, and NFC for use with Google Pay.
First and foremost, the Movado Connect runs on top of the standard Android Wear specs package — a Snapdragon Wear 2100 processor, 512mb of RAM, and 4GB of storage. It also includes a 1.39-inch 400×400 AMOLED display, 300mAh battery, and a typical array of sensors including an accelerometer and gyroscope. There’s also an ambient light sensor here and support for NFC, meaning you’ll be able to use Google Pay with this watch.
On-Screen Workouts/ Connected GPS/ Bluetooth/ Smartphone Notifications/ 4 Day Battery Life/ Heart Rate Tracking/ 15 Exercise Modes/ SmartTrack/ All-Day Activity/ Female Health/ Sleep Tracking And Stages/ Cardio Fitness Level/ 3-Axis Accelerometer And Gyroscope/ Optical Heart Rate Monitor/ Color LCD Touchscreen Display/ Water Resistant To 50 Meters/ Charcoal Woven Strap & Graphite Aluminum Finish
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.