Deeper
Product photos coming with retailer data
Verdict
The castable kayakers actually swear by. Three-beam sonar and a high-precision internal GPS build real bathymetric maps from the deck or shore, with about nine hours of battery and zero mounting.
Full specs
| screen | phone app (no screen) |
| sonar | 2D castable 3-beam |
| gps | Yes |
| transducer | Castable Wi-Fi ball |
| castable | Yes |