R. Oril, I did buy the Lowrance Elite 4 (color) and recently also the Mark 4 (BW). I put the color Elite 4 in the old Mac 26S and I put the Mark 4 in a 15 foot planning dingy.
I haven’t used either one yet but will be using it at Lake Havasu shortly - I’ll be in the marina if you want to check it out and how I mounted since we have close to the same boat.
The initial reason I chose the lowrance turned out to not be valid - I thought it had a higher viewing angle vs. the Garmin but I think both are fairly good. You get more features, networking capability with the Garmin. One thing that I like about this little Lowrance is the power it consumes. Check the specs on some of the larger chart plotters - I think some of the 5 inch screen models consume up to about 15 watts. Both of the Lowrace models I have (Elite 4 and Mark 4) consume about 160 ma - about 2 watts. I believe the spec says 3 watts or something like that.
For about $50 more, you can get this product with a micro SD card that has a lot better map detail. I have this in the color version that I put in the 26S. I didn’t get it for the BW version I’m using with the 15 foot planning dingy.
The picture of the BW version shows pretty much the screen I will leave it in on for both boats. Size of display digits is adjustable, I have the speed at the top in large digits, depth and then water temp under that. To some extent, I just have a depth and speed reading on one display with the bonus of the map.
Both are good (at least so far, I actually havent used either yet on the water), just have to look at the features and tradeoffs to meet your needs...