Garmin GPSMAP 79sc Handheld GPS Chartplotter with BlueChart g3

Garmin GPSMAP 79sc

The GPSMAP 79sc is a rugged, floating, waterproof handheld GPS chartplotter built for reliable marine navigation. Preloaded with BlueChart g3 coastal charts for North America, it combines multi-constellation satellite support, a built-in electronic compass, and barometric altimeter in a compact, easy-to-use package ready to navigate right out of the box.

Key Features

• Preloaded BlueChart g3 Charts Detailed North American coastal coverage included; no additional chart purchase required for most coastal use
• Floating & Waterproof (IPX7) Survives submersion and floats if dropped overboard
• Multi-Constellation GNSS Support Tracks GPS, GLONASS, and Galileo satellites for faster acquisition and better coverage
• 3-Axis Tilt-Compensated Electronic Compass Accurate heading display even when the unit is not held level
• Barometric Altimeter Monitors pressure changes for weather awareness
• Waypoint & Route Management Save locations, build routes, and track your path on the water
• Man Overboard (MOB) Function One-button MOB marking for immediate position recording
• NMEA 0183 & High-Speed USB Connect to compatible instruments and computers for data sharing
• AA Battery Powered Runs on two standard AA batteries for easy field replacement; optional 12V DC power cable available

Parts Desk Insights

Best Use Case: Ideal as a primary navigator on small powerboats, tenders, kayaks, and dinghies where a fixed-mount chartplotter is impractical. Also an excellent backup or emergency navigator on larger vessels. The floating, waterproof design and AA battery operation make it particularly well-suited for open boats and offshore safety kits where power reliability matters. BlueChart g3 preloaded charts mean it is ready for coastal North American waters immediately no chart cards required for most users.

Installation Notes: No permanent installation required operates as a portable handheld. Optional bracket mount available for helm use. Powered by two AA batteries (not included) or via optional 12V DC power/data cable. No sonar capability navigation only.

Compatibility: NMEA 0183 output compatible with autopilots, VHF radios, and instruments that accept NMEA 0183 data. Not NMEA 2000 compatible. Supports microSD card for optional chart expansion. Compatible with optional Garmin carrying cases, mounting brackets, and power cables.