The HELIX 5 CHIRP SI with GPS packs a powerful punch. Chose from Side Imaging (SI), Down Imaging (DI), Sonar or GPS screens individually or side by side; all lit beautifully on a brilliant 16:9 wide screen format. Internal precision GPS and a host of cartography options will let you come back to your favorite spots anytime you like.5 HD 256 color TFT screen100' Side Imaging range1500' depth capabilityInternal precision GPS500 Watts (RMS) / 4000 Watts (PTP)480 x 800 pixel resolutionSide & Down Imaging includedSwitchFire Sonar2750 waypoints / 45 routesBuilt in Contour XD mapSingle Micro SD Card SlotLakeMaster / Navionics Gold / Hot Maps compatibleAutoChart / AutoChart Pro compatible