The Apple Watch Series 2 arrives nearly 17 months after the original, and has a few features that its predecessor probably should have shipped with. The first and foremost of these is a snappy and responsive operating system - which is now available on the original Apple Watch too - followed by...

Battery life; Swim-proof; Fast; accurate GPS; watchOS 3 ecosystem; Watch Unlock

Lacks altimeter; Workouts app lacks features; Can't export workout data; UI feels stale

The original Apple Watch wasn't amazing, but it did what it set out to do. You could answer phone calls on your watch, see notifications from your phone, and even track your heart rate. And with the most recent software upgrade, the watch has speed and interface improvements that refine it further.

WatchOS 3 is amazing

Doesn't feel worth an upgrade over the Series 1

The Series 2 (and Series 1) is in no way worse than Apple's last version, and it serves its purpose with aplomb. It's still the best smart watch choice for iPhone owners, and that's unlikely to change any time soon.Don't write off the Series 1 either, though.

The Apple Watch gains GPS, water resistance, and more of a reason to exist with this excellent update

It's been a while coming. The constantly evolving iPhone and iPad line-up has taught us to expect Apple products to be updated on a yearly basis, but the first-gen Apple Watch was on the market for 16 months before Apple delivered its successor.

Thoughts after two weeks of use - I'm more than happy with the battery life. I charge it every other night during the night and when it still has 21 percent of the battery left when I put it in the charger. I do not agree on much, and caterpillar with the clock.

Using an Apple Watch during the past 16 months was a mixed experience: one that saw Apple's first wearable launch amid high praise, confusion, and skepticism of just how much a tiny wrist-worn computer should be able to do.

Finally; fast and reliable performance; Screen is easier to view; even in the sun; Built-in GPS; Water resistance is a nice feature for anyone to have

Battery life is still a day; two at most for non GPS users

Is the Apple Watch Series 2 the perfect smartwatch No. But it makes a much more compelling argument than the original that you should own one. We're not just talking about the addition of GPS and the waterproofing here either.

Good looking; comfy; waterproof; Accurate swim tracking; Improved usability and alerts; Speedy; reliable GPS

Battery life is still not great; So-so apps; No sleep or elevation; Expensive

"The Apple watch isn't going to replace your headunit or high-end multisport watch, but it tracks all the key metrics accurately enough to observe trends in your workouts"

Easy to use; surprising battery life; there's an app for everything

Optical heart rate point to point accuracy

The Apple Watch 2 is an improvement on the original Watch in a number of ways, and all of them useful. The extended battery life, the GPS abilities and the water-resistance now make this a compelling smartwatch, though the follow up Series 3 is the device that really convinced us it has a purpose.

Water-resistant; GPS onboard; Two day battery life

Expensive; Lack of useful apps; Fitness could be more comprehensive