The catch
Lowrance Eagle 9 TripleShot HD
For SideScan to work, the transducer needs a clear mounting spot and a suitable boat speed.
Side by side
Go larger with the side-imaging package, or stay with the narrower downward-sonar unit.
Before you buy
Eagle 9 TripleShot HD gives about 35.3 square inches of display area, against about 21.6 for Eagle 7 SplitShot HD. Use that to judge viewing distance and split-screen comfort.
Where this comes from
Assuming square pixels and the published diagonal, Area = diagonal² × horizontal pixels × vertical pixels ÷ (horizontal pixels² + vertical pixels²). The values are geometric estimates and not active-area measurements.
The catch
For SideScan to work, the transducer needs a clear mounting spot and a suitable boat speed.
The catch
There is no side imaging with SplitShot HD.


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Eagle 9 TripleShot HD and Eagle 7 SplitShot HD, looked at through included sonar, display workspace, chart support and battery needs on your boat.
Go larger with the side-imaging package, or stay with the narrower downward-sonar unit.
Which one fits
SideScan and a higher pixel matrix come with Eagle 9 TripleShot. Eagle 7 SplitShot offers CHIRP and DownScan, which makes this about more than two inches of screen.
C-MAP and Genesis Live belong to both. Going to the larger model does not bring a different chart ecosystem or a general Ethernet expansion path.
A limited console may suit Eagle 7 better, although its selected transducer gives up side views. The 9-inch case is 61.3mm wider.
At 287.2mm wide, Eagle 9 is 7.2mm over 280mm. Eagle 7 leaves 54.1mm before mounting clearances.
In practice
Eagle 9 TripleShot HD gives about 35.3 square inches of display area, against about 21.6 for Eagle 7 SplitShot HD. Use that to judge viewing distance and split-screen comfort.
Assuming square pixels and the published diagonal, Area = diagonal² × horizontal pixels × vertical pixels ÷ (horizontal pixels² + vertical pixels²). The values are geometric estimates and not active-area measurements.
Working from the 102.4Wh allowance, the published electrical point of Eagle 9 TripleShot HD works out to about 13.3 hours and the Eagle 7 SplitShot HD point to 15.5 hours.
The assumption is 12.8V ×10Ah ×0.8 =102.4Wh usable for this device alone. At the published points, power is 0.64A ×12V =7.7W and 0.55A ×12V =6.6W. HELIX input is taken as 12V, since the draw specification leaves out the test voltage. Converter loss, temperature and battery aging are ignored. This is not a measured runtime comparison.
At 287.2mm wide, Eagle 9 is 7.2mm over 280mm. Eagle 7 leaves 54.1mm before mounting clearances.
280 minus 287.2 =negative 7.2mm. 280 minus 225.9 =54.1mm. Even a close body fit still needs bracket and connector clearance.

Lowrance, Eagle 9 TripleShot HD
TripleShot HD gives this nine-inch 1024 × 600 IPS fishfinder CHIRP, DownScan and SideScan. It belongs on a console with space for an 11.3-inch-wide body.

Lowrance, Eagle 7 SplitShot HD
This seven-inch IPS fishfinder pairs SplitShot HD with GPS chart support and Genesis Live mapping. Compared with Eagle 5 it offers more viewing area on the same 800 × 480 pixel matrix.
Spec by spec
| Spec | Lowrance Eagle 9 TripleShot HD | Lowrance Eagle 7 SplitShot HD | In practice |
|---|---|---|---|
| Display diagonal | 9 inches | 7 inches | A bigger physical view helps if the unit is mounted farther from the seat. |
| Pixel matrix | 1024 × 600 | 800 × 480 | It governs addressable display workspace and has no bearing on acoustic target separation. |
| Published electrical point | 0.64A at 12V | 0.55A at 12V | Size a battery using the stated conditions. The HELIX voltage is a nominal 12V assumption. |
| Included transducer | TripleShot HD | SplitShot HD | The sonar modes and installation hardware you get depend on this exact bundle. |
| Side imaging | Included | Not included | A below-boat image cannot stand in for a left-right structure scan. |
| Bare body width | 287.2mm | 225.9mm | Allow extra room for the bracket and the cable exits. |
Trade-offs
Change of plan
Go with Lowrance Eagle 9 TripleShot HD. SideScan and a higher pixel matrix come with Eagle 9 TripleShot. Eagle 7 SplitShot offers CHIRP and DownScan, which makes this about more than two inches of screen.
Go with Lowrance Eagle 7 SplitShot HD. C-MAP and Genesis Live belong to both. Going to the larger model does not bring a different chart ecosystem or a general Ethernet expansion path.
Decision guide
Take the larger side-imaging package, or hold on to the narrower downward-sonar unit.
SideScan and a higher pixel matrix come with Eagle 9 TripleShot. Eagle 7 SplitShot offers CHIRP and DownScan, which makes this about more than two inches of screen.
C-MAP and Genesis Live belong to both. Going to the larger model does not bring a different chart ecosystem or a general Ethernet expansion path.
A limited console may suit Eagle 7 better, although its selected transducer gives up side views. The 9-inch case is 61.3mm wider.
By the numbers
What we found across the fish finders we compare, plus the checked facts behind each finding.
Only 5 of the 23 models checked meet every need here: “Take in split screens at a glance” and “Scan to port and starboard”.
5 models fit, out of 23 checkedHow we countedThe count uses each product's current fit ratings for “Take in split screens at a glance” and “Scan to port and starboard”. A need with no documented match is not counted.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Lowrance Eagle 9 TripleShot HD |
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| Lowrance Eagle 7 SplitShot HD |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

SideScan and 1024 × 600 pixels are what you need
See price & reviews on Amazon
A narrower case suits your below-boat fishing
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