Apple debuted a brand-new Apple Watch earlier this fall, the Apple Watch Series 4.
The new watch has a larger display, upgraded heart-tracking sensors, and a faster chip than last year's model, the Apple Watch Series 3.
But it also bears several similarities to last year's model: the new watch gets the same amount of battery life (18 hours) and the design looks nearly identical to the Series 3, and to previous versions before that.
So whether you're a first-time Apple Watch buyer, or you're...
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