: Lowrance Elite 7 HDI versus HDS 7 GEN 2


Lerie
03-02-2013, 06:26 AM
Upraded to a newer boat and need to install a better graph. Right now I'm considering the Lowrance Elite 7 HDI, but in the course of my research I would consider the HDS 7 Gen 2 if the roughly $300 price difference would be worth it. The internet is a wonderfull research tool, however I just can't seem to find the difinitive info. Even called Lowrance, while helpfull, still questions, with some coming after I spoke with them.

Is there a difference in the screen between the 2? If so, what is it and is the definition of targets any better between the 2? Is surface water temp included on these units? If you have any experience with either of these units, would appreciate your input as it would be a 3 1/2 hour drive for me to see working units on simulators. Thanks in advance for your time and consideration in providing the info requested.

jhebert
03-02-2013, 07:06 AM
...Is there a difference in the screen between [the Lowrance HDS-7 Gen2 and the Elite 7 HDI]?

The display of the HDS-7 Gen2 is 640 x480 pixels, a 4:3 aspect ratio, on a 6.4-inch diagonal with LED backlighting.

The display of the Elite 7 HDI is 800 x 480 pixels, a 15:9 aspect ratio, on a 7-inch diagonal with LED backlighting.

We compute the screen area (A) from the diagonal (d) and aspect ratio (r) as

A = d^2/(r+1/r)

and find

HDS-7 Gen2 screen Area = 19.66-inch^2
ELITE 7 HDI screen Area = 21.68-inch^2

Dividing the screen area by the number of pixels gives the pixel density

HDS-7 Gen2 pixel density = 307200/19.66 = 15,625-pixel/inch^2
ELITE 7 HDI pixel density = 384000/21.68 = 17,712-pixel/inch^2

The ELITE 7 HDI has more screen area and has higher pixel density than an HDS-7 Gen2.

sddan2
03-02-2013, 08:02 AM
I am in the same situation and am leaning towards the Elite 7 because it includes DSI. Even with the HDS basemap at $1000 you would need to add structure scan for another $600 to get the DSI. I am not sold on the side scan yet but believe that the down scan can be very useful.

lowtech
03-02-2013, 10:32 AM
Is there a difference in the screen between the 2? If so, what is it and is the definition of targets any better between the 2? Is surface water temp included on these units? If you have any experience with either of these units, would appreciate your input as it would be a 3 1/2 hour drive for me to see working units on simulators. Thanks in advance for your time and consideration in providing the info requested.

Some key differences between the two units:

- E7 screen is larger (true 7") than the HDS7 (6.5")
- HDS processing is FASTER than than the E7 by a large margin (little to no lag if doing multiple things)
- HDS can be networked to multiple units and sonars, as well as radar/music and now WIFI, includes both NEMA standards. This opens the door for internal mapping if combined with other modules, something not available to the E7. E7 has NEMA 2000, and can only share GPS info - no transducers at this time.
- The E7 HDI model includes Downimaging, the HDS7 G2 does not have this unless you purchase the SS2 module.
- IMO, the screen on the HDS7 G2 is better than the E7 - it's smoother for lack of better discription, likely due to the more powerful processor.
- The HDS7 G2 has access to 3D maps that may or may not be useful to you if purchasing a mapping card. E7 is flat mapping only (and slower on mapping refresh than the HDS G2 in my experience).

Surface temp is available for both units via the transducer.


Ultimately it comes down to what you want to use it for. If you were comparing the E7 to the Gen 1 HDS units, the processing power is closer, so it would come down to networking/integration vs screensize/integrated DSI. With the Gen2's there's a noticeable performance bump IMO, but again I consider the larger picture of how you want your system setup.

For a one and done, budget minded unit the E7 is incredibly hard to beat.
If you're looking to the future and more units, the HDS series.

YMMV

jhebert
03-02-2013, 01:34 PM
It also appears the lower-priced ELITE 7 HDI cannot handle NMEA-2000 data from AIS receivers, and will not be able to display AIS targets on its chart plotter. The HDS-7 can display AIS targets.

Lerie
03-03-2013, 04:26 AM
Thanks for the replies. Some very good and in depth answers. From the info submitted - now leaning toward the Elite 7. but still would appreciate additional input.

Yarhcaz
03-03-2013, 10:10 AM
Just had my Pop pick up two of the elite 7's yesterday. I am now a hummingbird guy, but have to say the Elite 7 just might be the most bang for buck on the market right now. He got two Elite 7's and the new chip for roughly the same amount I paid for just my bird 898. While I enjoy and use my side imaging he isn't ever going to use it (as I would think most older people wouldn't, Now there are always exceptions...so please no one get upset. I mean I remember fishing with the green box flasher with him. His last new graphs were a lms 350a and x-65 which still sit on his year 2000 warrior (transferred over from the warrior before that one, and maybe even the tournament series Starcraft for the LMS,cant remember its been too long), so to say he was over due for an upgrade is kind of an overstatement. I have researched the graphs for him and well the Elite 7's is what i finally told him to get.


Thanks for the replies. Some very good and in depth answers. From the info submitted - now leaning toward the Elite 7. but still would appreciate additional input.

06x6spdGTO
03-03-2013, 04:50 PM
I have a New Elite 7 HDI (At console), and a LMS-330c on the bow... I will be adding a HBird 788 or 798 on a RAM mount just infront of the windshield next and a Terrova with ILink...

Just my .02cents... Elite 7 HDI for the Sonar and screen size... Hbird 788c HD for ILink Terrova and you'd have one helluva budget minded setup capable of doing most anything you will encounter.