Hummingbird Fish Finder 688ci HD XD Combo Review

Hummingbird Fish Finders - 688ci HD XD Combo

The Humminbird Fish Finder 688ci HD XD Combo is a unit that combines chartplotting functions with extreme depth fish finding capabilities. The head unit of this Humminbird is pretty much similar to the other units of the 600 series. It has a 5-inch diagonal screen, brilliant color and backlit, 480H x 640V pixel resolution. Has a power output of 1,000 Watts (RMS) / 8,000 Watts (PTP), being capable of scanning depths up to 3,000 feet.

It has Dual Beam Plus Sonar, and Xtreme Depth (that’s what

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Hummingbird Fish Finder 678c HD XD Review

Hummingbird Fish Finders - 678c HD XD

The Humminbird 678c HD XD is a unit that offers only fish finding features, and does not support any navigational features. However, it’s an extreme depth fish finder (that’s what XD stands for), with a depth capability of 3,000 ft.

The head unit of the 678c HD XD is similar to the other fish finders from the 600 series, featuring a full color, 5-inch diagonal screen, 480H x 640V pixel resolution, with backlight, providing high-definition images, easy to read even in extreme sunlight.

The

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Hummingbird Fish Finder 688ci HD Combo Review

Hummingbird Fish Finders - 688ci HD Combo

The Humminbird 688ci HD Combo is another unit with an excellent price / quality ratio. It’s the unit that comes to take the place of the similar, discontinued units, 788ci HD Combo and 587ci HD Combo.

This fish finder has the same screen format as the other other units within the 600 series, 5-inches in diagonal, 640V x 480H pixel resolution, high definition, full color

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Hummingbird Fish Finder 678c HD DI Review

This is one of the cheapest units of the new, 600 series, Hummingbird fish finders with Down Imaging. Although it does not have too many navigational options, the Humminbird 678c HD DI sure covers pretty much everything a fish finder should.

Like most units within the Humminbird 600 series, this one comes with a 5-inch diagonal screen, 640 x 480 pixel resolution. It’s a full color unit, with LED backlit screen, making the readings quite easy during night fishing.

Comes with Dual Beam Plus

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Hummingbird Fish Finder 688ci HD DI Combo

Hummingbird Fish Finders - 688ci HD DI Combo

The Humminbird 688ci HD DI Combo is one of the new 600 series fish finders. It shares many similarities with the 788ci HD DI Combo, but it’s considerably cheaper.

This unit has a 5-inch vertical layout screen, 480 x 640 pixel resolution, with a backlit, 256 color display (TFT). As its name suggests, its a High Definition fish finder, even though it’s a smaller unit, and does provide crystal clear images.

In terms of sonar capabilities, the 688ci HD DI Combo is equipped with the standard

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