Apple Watch review

Apple Watch review: Specs

The Apple Watch's display has a resolution of 272x340 or 312x390 depending on whether you choose the 38mm or 42mm size option. We thought the screen quality was excellent during our testing.

The Apple Watch is powered by an Apple S1 processor, and we have found that it can be a little slow on occasions, particularly while using third-party apps.

As can be expected from wearable tech, there are several sensors in the Apple Watch that enable the fitness tracking features. There's a gyroscope, an accelerometer and a heart rate monitor. There's no GPS, though: the Apple Watch relies on the iPhone for that part. That means you'll need your iPhone with you if you plan on tracking a run, which is a bit of a shame.

Prior to its launch, the battery life of the Apple Watch was a bit of a concern, and unfortunately those concerns haven't been completely put to rest now that the Apple Watch is here. Apple claims it'll last for 18 hours of normal use, which it says is 'all-day battery life'.

But our first day with the Apple Watch was disappointing. By 6.15pm, our iPhone had run out of battery (we later found it was the Apple Watch app that was guzzling up its fuel) and just half an hour later the Apple Watch gave up the ghost. Admittedly, we think we were using it a little more than we would normally as we were getting to know all of its features, but it's disappointing nonetheless. We'll update this review with more information about the battery life once we've spent some more time with the Watch to find out whether things improve once we get more used to using the device.

Charging takes around two and a half hours, and works with an inductive magnetic charger that snaps onto the back of the Watch itself.

There's no camera in the Apple Watch, but it can be used as a remote for the camera on your iPhone.

Next section: Apple Watch features