Navi Genie GT31 GPS

Records 20480 data points on internal memory / first in first out function.
Odometer, trip meter, current speed, maximum speed, sunrise, sunset...
Alarms with monotone or LED output.
Fast start - <2secs if 'hot' or <35secs typical from 'cold'.
Compact Palm-Size Design (90x58x24.5mm Weighs 97g).
Clear Display / LED Backlit (33x21mm / 128x64px resolution).
Easy to use thumb-stick, simple one handed move and click operation.
Internal lithium-ion rechargeable battery supplied up to 61 hours use!
Takes just 4 hours to charge.
Recharges with mains charger, car charger, or USB cable - all included.
Comes with a UK mains charger.
SD/MMC Slot - Makes it easy to store and transfer data to a computer.
Supports Doppler Speed (as required by GPS Speedsurfing).
Waterproof IPX7 Standard
Google Earth KML/GPX output options for cool mapping capability.
Supports over 10 different languages for worldwide functionality.
Recommended by the speed sailing association.
Waterproof, but if using for watersports it must be housed in the waterproof container.

Comes with- Aquapac Small Armband case
Transcend 2Gb SD Card
Price: £149.00