On a seven-day battery span, you can expect feedback on calories burned, heart rate, distance and steps covered plus how much activity you’ve undergone that day. Fitbit devices also report back on your sleep, if you’re into that kind of thing. Buy Now:

Polar

Polar has been making heart-rate monitors since 1977, long before your mum got interested in getting her 10,000 steps a day. Its innovative products are used by elite coaches to track the performance of pros in practically every sport imaginable so it’s more than capable of helping you track down a new PB.

While the company does entry-level units, its premium trackers are the reason it’s successful. Think sport-specific training schedules, recovery advice and built-in fitness tests.

Add to that world-beating GPS technology, which means higher accuracy and no bothering with your phone to track distances and routes. But if you do pair it with the app on your phone, you can use Polar’s customized training plans for middle- to long-distance running, which come via instructions on your watch.

You also get the standard features you’d want from a smartwatch: alerts for calls, messages and even social media notifications. So if you often enter race events and want to be able to stay up to date with your messages during your training, this is your device. Buy Now:

Suunto Spartan Ultra

Now things get serious. Serious tracking. Serious functionality. Serious price. Suunto has been making instruments designed for outdoor performance since the thirties. The firm uses a one-second GPS fix rate, which makes for the most accurate tracking around.

The Suunto Spartan range is up there with the most expensive, but with good reason. The sheer magnitude of tracking options makes it the go-to choice for weekend warriors and serious athletes alike.