Connection: Wifi: iOS or Android smartphones or tablets
Sonar: Five dual-frequency transducers (381 kHz, 455 kHz)
Depth and range: Effective to 160 feet deep; 200-foot range
Power: 10 hours per charge, dual charger (AC adapter, car/boat plug)
Weight: 5.6 ounces
What's cool: The five view options available provide RAW Sonar data, 3D bottom contouring, 3D bottom mapping, an icefishing flasher, and directional casting. The latter uses all five transducers to display depth and location relevant to the unit's position. We also like that the maps were marked with fishing spots, navigational hazards, and marinas.