The only noticeable visual difference is the red dot on the Digital Crown that those who purchased an LTE model will have to endure. Aside from being ever-so-slightly thicker, the Series 3 doesn't deviate much from the previous model. The Apple Watch Series 3 looks and feels nearly identical to the Series 2.

However, there were some problems for those of us who first tested the device, so I'm also quite familiar with what it feels like to be completely alone when wearable LTE fails. I've spent just about a week with a Series 3 with LTE, and I have gotten glimpses of what it feels like to be successfully free of my iPhone. Those who opt for the $399 LTE models expect the ability to make and take phone calls, respond to text messages, and check alerts even when their iPhones are miles away. The Apple Watch Series 3 ultimately comes in two types of models: with LTE and without LTE. And it's a big gamble for Apple considering other wearable manufacturers have tried (and largely failed) to make a good cellular wearable experience. So the move still marks a huge update to an Apple device that's been around for less than three years. Wearables with LTE connectivity aren't new, but the feature is new to the Apple Watch. We'll be discussing all aspects of the Apple Watch Series 3 in this review, but read our watchOS 4 review for full details on the latest software update. However, only a few things are unique to the Series 3 Watch models on watchOS 4: LTE service, Siri speaking, and barometric altimeter calculations. The Series 3's launch coincided with its rollout. WatchOS 4WatchOS 4 is the latest software update to hit all Apple Watch models.

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