Deeper Pro Smart Sonar Castable and Portable Smart Sonar WiFi Fish Finder for Kayaks and Boats on Shore Carp Fishing Fish Finder

My decision on this purchase was made after doing some research on what fish finding unit would work best for me. My primary use was for icefishing and secondary use would be using with a canoe. The videos and reviews I found seemed to answer my questions as to, how well it works in comparison to other flashers like a Vexilar. Having owned and used a Vexilar in the past I wanted it to replace that unit and have the versatility to use on open water. My perception of how this unit would compare to a real flasher was that it couldn’t.
Now that I used the Deeper Pro on the ice a few times I can post my experience. The first time I used it I did not mark any fish but was confident that it was that there was none to mark. I had one big fish swim by and it showed up as a long bending arc. I was on about 8-10 inches of ice. The battery lasted all day, about 6 hours of on time, with life to spare. I was able to walk about 30 ft away from the unit before it disconnected. I tried it in a shack next to a Vexilar which made it unusable, there was way too much interference causing vertical lines to appear on the 2D cross section image, among other illegible lines on the flasher side. I had to move a good distance away for there not to be interference, maybe +25ft. This is the only downside to the unit I experienced. After a day of not marking fish, or catching any, the next day I went to a different spot to fish. Now familiar with the unit, it’s options and views, I was able to identify a school of fish in the first drilled ice hole of the day. I sat on that hole all day continuously marking fish and catching them. The deeper pro worked perfectly on marking the fish and depth of fish, I was very satisfied. The fish were suspended mostly from 30-35ft in 40ft of water, and only biting at the top of the band. I fished for 4 hours before my phone battery died, the Deeper was at 30% after continuous use in that time. I did not have my Galaxy 10 in airplane mode as I did the first time use, so this should preserve phone battery life when using this unit and application.
The flasher is nice, works as it should. I had the sensitivity at 60% and that was able to pick up on my small jig head and small lead weight. The side sonar image, the longitudinal one in white works nice for seeing where your jig is when dropping it to depth. My favorite view is the 2D cross section in color. This is definitely an advantage over traditional flashers. The feed updates pretty quick to the phone. At first, when setting the Deeper into the water it sometimes takes a minute to connect and give a good feed. So if you are bouncing hole to hole with it, you have to be patient, so a downside compared to a Vexilar.
Overall the unit worked as it should with good battery life and a nice layout on the application. There is more I plan to do with this unit in open water but it performs well on hard water. I gave it a 4 of 5 stars for two reasons. The fact that is has to connect to a device to use the unit can be cumbersome, there is a good chance that you can fumble your phone and it be destroyed. I see they make a holder for fishing rods but it’s not worth it for me to invest since I icefish primarily and set my phone on a bucket. I thought about using a tablet with some type of case that will allow it to be set to view hands free, maybe next year. The other reason is low battery life. Not that I’m degrading the Deeper unit battery life, but rather the life it seemed to drain from my device connected to it.