Heart rate monitors

Excellent heart rate monitor, and great to finally see one with a rechargeable battery

Straightforward arm-mounted heart rate monitor that does the basics well

Comfortable and easy to use, providing reliable heart rate data

More than just a heart rate monitor, and that is reflected in the price

LED-based heart rate sensor that's easy to live with

Hugely versatile training computer with masses of functions, but navigation is basic and the screen, though colour, is small

Highly customisable GPS watch with a clear display, plus a couple of neat triathlon-specific features

Excellent heart rate monitor strap with good connectivity and useful status LEDs

Good heart rate monitor option for indoor training, or if you don't get on with a chest strap

An accurate and easy-to-use heart rate monitor with some really smart extra features

Extremely sophisticated training gadget for multi-sport athletes rather than just cyclists

Key racing or training information in one compact wireless package, but you can't upload its data or customise its screens