V680 GPS Watch User`s Manual

GPS sensitivity

GPS center

-163dBm

L1, 1575.42MHz

frequency

GPS positioning 5-25m accuracy

GSM positioning 100-500m accuracy

Speed accuracy

Time accuracy

GPS Datum

Hot start

0.1 m/s

Synchronous with GPS

WGS-84

< 1s

Warm start

Max. altitude

Max. speed

Gravitational acceleration

< 38s

18000m

515m/s

(2). Others

Operating temperature

-20---65

Humidity

Dimensions

5%---95%

64.5mm×45.5mm×17.5 mm (main unit)

Voltage Rechargeable 450mAh battery

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