Garmin GPSMAP 440sx GPS Receiver

The 440sx come with the GXM 31 Smart Antenna. With a subscription to XM Satellite Weather, the 440sx can provide continuously-delivered weather on the unit's high-resolution sunlight-readable display. Vital weather data, such as NEXRAD radar, forecasts, and current conditions is graphically displayed directly on the chart - so you can spend more time enjoying the water and less time worrying about the weather.