Satmap Active 10

The Satmap Active 10 delivers OS 1:25 and 1:50 mapping on pre-loaded SD cards in a compact waterproof unit with a high-quality screen, electronic compass and ultra sensitive GPS reception. Buttons are logical and the route-planning feature is easy to use. OS and custom-built maps will be available from retailers or online (when the website goes live). Note on battery life: Satmap claims 22 hours typical use, but I found the 3 AA lithium batteries needed replacing after four. Perhaps they were faulty. A rechargeable lithium polymer battery providing 35 hours is available at £45.

Reviewed: Winter 2007 by Peter Judd

Size: 13.0 x 7.5 x 3.0 cm

Weight: with batteries 215g

Screen area: 37.1 sq cm

Battery/typical life (see above): 3 x AA or Lithium polymer power pack

Mapping capable? OS maps via satmap SD card

Electronic compass/barometer? Compass only

RRP £299