Kieran Alger

Updated The Garmin Forerunner 45 has more features than you might expect for the money, and they all work well.

Updated Now cheaper than ever, can the Garmin Forerunner 235 still keep up with the pack?

The Polar Ignite is a remarkably accomplished general-purpose fitness watch.

The Suunto 5 is a new fitness-focused GPS watch that doesn’t quite make the grade.

The Polar Vantage M packs a lot of features into a lightweight, affordable package.

The V800's successor, the Polar Vantage V is a powerful training tool for serious competitors.

The Garmin Fenix 5 Plus is an exceedingly adept multisport watch, but it's also very, very expensive.

The Suunto 9 can last for up to 120 hours and is packed full of features. If it weren't for some suspect software this would be a classic.

The Suunto 3 Fitness offers a guided approach to fitness at a budget price, but the lack of GPS really hurts.

The Casio Pro Trek Smart WSD-F20 is built for adventure and designed to make sure you never get lost, but it falls down in other areas.

The Lumo Run aims to improve your running technique, because good form equals a faster, more efficient runner.

LifeBEAM Vi is an exciting AI with some great features but a number of major problems.

The Polar M430 is a feature-packed running watch, but is it enough of an upgrade on the best-selling M400?

The Forerunner 225 is the first Garmin watch to incorporate Mio heart rate technology. It looks impressive – but is it accurate and easy to use?