Bryton's 40g GPS-enabled Rider 20 looks set to be a popular choice for cyclists.
Calibrating faff is zero thanks to the wonders of GPS, and Bryton uses ANT+ wireless interface to offer optional heart rate (via a chest monitor) and cadence sensors as aftermarket kits for an even more comprehensive set-up.
Data is clearly presented on the 1.6in mono screen, with large, easy-to-read numbers; even going over rough ground we were able to read everything easily.
Some might feel that not having mapping of breadcrumb trail data on a GPS computer is pointless - we'd disagree. Many riders know where they are or where they're going, and simply want to be able to analyse their ride later.
The unti's battery is slated to give a full 24-hour run - we've managed 20 hours before we needed sleep, but we've no reason to doubt it will power the remaining four. Adding charge is as easy as plugging into your PVC via the short USB powerlead.
Functional, easy to interpret data...4/5 stars - Cycling Plus - Summer 2012