The step counter, compass and nav features are nice to have I suppose but personally a cadence sensor would have been more useful for me, and other runners i assume.

The Race option pits your current run against previous outings so you can see if you're ahead or behind a previous time. With the slim, watch-like Withings Activité Pop, you get an amazing eight months per battery, a number that’s really hard to top.The watch accesses the mapping signals via the GPS receiver that TomTom has placed below the screen to form the four-way button, instead of hiding it inside. However there's also an accelerometer on board for when you're using the treadmill function. Really most of you will only want to either pair to the MySports smartphone app or link to MySports on your computer (www.tomtom.com/123) as you won’t have additional sensors. Hey! you guys all know how to pair apps by now right? User Manual As for the battery, TomTom claims you'll get 10 hours of power, and we found that this was pretty accurate. Though for the after-dark joggers among you, turning on the Runner's night mode means the constant light is more of a drain on the battery so you won't be hitting near that number. TomTom Runner: Data analysis

Optical HR will simply not be as accurate as a chest strap. That is true of EVERY single optical offering on a wrist watch on the market right now. There is simply too much going on with ‘motion artefacts’ and restrictions to blood flow. Finding the right tightness is important for the HRM feature.Snug is best butnote that during activity, especially on cold days, your wrist will expand as you warm up, soan optimalsetting at the start might be differentafter 10 minutes or so. I managed to find a setting that works every time. Earlier sections touch on the ability to incorporate bike cadence and speed data. With this you have the making of a tidy little bike computer. Sure it hasn’t got the bells and whistles of the fancy cycling computers on the market but for most people those are not required. This device also discourages you from being sedentary with move bar alerts, and to keep your challenged, it automatically increases your daily goal if you’re meeting it regularly. The Vivofit 2’s battery life is a full year, it’s waterproof to 50 metres, and it automatically syncs to Garmin Connect, which is available on mobile and on the web. The result? We often found ourselves scrabbling around in our gym bag searching for the missing brains to the Runner.Note: The optical HR signal is NOT re-broadcast for other devices to receive. Special Features – Swimming But you’d be forgiven for becoming confused over TomTom’s various offerings: the TomTom Spark is a near-identical watch. However, since we first reviewed the Spark, TomTom has updated its companion software and app, so it’s worth a revisit. TomTom Runner 2 Cardio + Music – Design and Setup The 91 steps on the right probably reflects my post-breakfast, early morning activity. There’s been lots of wear and tear on my fingers and bum but little on the soles of my shoes. It'll come as no surprise that TomTom is now offering up its own online MySports portal for collecting and reviewing your run data. It's fairly basic at the moment displaying time, average pace and calories burned.