Screen Size is the Big Difference. This may help you on total square inches of viewing area.
Display Size is usable area of the screen less readouts. Screen is the Display Size.
Square Inches of Sonar Data Display Area less Readouts:
798c = 12.234 Square Inches
898c = 16.031 Square Inches
998c = 21.312 Square Inches
1198c = 48.156 Square Inches
SI View Square Inches of Viewing Now Increased:
798c: 12.234 Square Inches
898c: 22.203 Square Inches - Upgrade Increases 6.172 Square Inches
998c: 29.218 Square Inches - Upgrade Increases 7.906 Square Inches
1198c: 48.15 Square Inches
TMike's Physical Image Comparison Image:
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