The Humminbird 959ci HD DI Combo is a very similar fish finder in terms of capabilities, with the 999ci HD SI Combo, only it does not have the Side Imaging options. Other than this, it pretty much shares all the features with the top unit of the 900 series.
For starters, it has the 8-inch diagonal, full color display, with an 800H x 480 (16:9) pixel resolution, and backlight. It has dual card reader and instant access preset button, and the box also includes a cover for this unit.
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