some point-by-point comparisons of the Lowrance HDS-5 and Humminbird 798

MSRP:
HDS: $1298
798: $1049 (winner)

Display:
HDS: 5" 480x480 16-bit color TFT
798: 5" 640x640 265 color TFT (winner)

Display options:
HDS: 4-way split screen (winner)
798: 3-way split screen

Sonar:
HDS: 30000W peak-to-peak, 5000' depth (winner)
798: 4000W peak-to-peak, 1500' depth

GPS:
HDS: 16-channel, can pay extra to upgrade to 50-channel
798: 50-channel standard (winner)

Waypoints:
HDS: 5000 waypoints, can enter waypoints as icons (winner)
798: 3000 waypoints, change waypoint icons manually

Mapping:
both can use Lakemaster and Navionics
HDS: n/a
798: can highlight depth bands on Lakemaster (winner)

Side-imaging:
HDS: "Structure Scan" 500' coverage, can waypoint distant objects
798: "Side Imaging" 480' coverage, can waypoint distant objects