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.
To charge the watch, you have to clip on the charger and align it with contacts that you can't see when you're clipping. Why make it so complicated? There's no NFC for easy pairing, and you have to find the smartwatch app in the app market, download it, and install it on your mobile device. The Frame's display readability in bright sunlight was judged to be only good. It's relatively heavy, at 2.7 ounces (only the Toq is heavier).
First, there’s now an option of an LTE-capable model allowing for always-on connectivity. This is through the use of an eSIM inside and an antenna cleverly hidden behind the display. The great news is that your Apple Watch 3 will share the same phone number as your iPhone, whereas other LTE-capable smartwatches have required you to juggle two phone numbers. You’ll need to pay for an additional smartwatch plan for the functionality, however.
Our top pick for most people is the Apple Watch Series 4 with GPS (starting at $399), which has a huge display, ultra-fast processor, Raise to Speak Siri, fall detection and a built-in electrical heart rate sensor for taking on-the-go electrocardiograms. It also runs watchOS 5, which makes the watch even more useful with automatic workout-tracking, offline podcast playback and a Walkie-Talkie voice chat feature.