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Flasher vs Graph vs Forward-Facing Sonar: Where Should a Beginner Start?
Short answer: Most beginners should start with a flasher. It is cheaper, uses far less power and is easier to read. Add a GPS graph if you want maps, and live sonar only once you know you will use it and can budget for the display, transducer, pole and battery.
I get asked this more than anything else. My answer: start with a flasher, and add live sonar once you know you'll use it.
What each one shows
| Flasher (e.g. Vexilar FLX-28, MarCum M1) | Graph (e.g. Humminbird ICE HELIX 7) | Forward-facing sonar (LiveScope Plus, MEGA Live 2, ActiveTarget 2) | |
|---|---|---|---|
| View | Real-time ring straight below the hole | Scrolling history below, plus GPS maps | Live picture to the side or below, out to 150–200 ft rated |
| Cone / beam | 9° (FLX-28) to 20° (M1) | 15° & 21° CHIRP (ICE HELIX 7) | 20° × 120–135° (published) |
| Power | About 260 mA (FLX-28 at 12 V) | 800 mA (ICE HELIX 7) | Much higher. LiveScope Plus lists 21 W typical / 58 W max |
| Pieces to buy | Usually a complete pack | Usually a complete ice bundle | Display + transducer (+ black box) + pole + lithium battery + case |
| Learning curve | Short | Moderate | Steep. Reading the image takes time on the water |
Specs from the manufacturer pages cited in our flasher guide and live sonar guide.
What I'd do
- Year one: a flasher. You'll learn to see your jig, watch fish rise, and work out what makes them bite. Those skills carry over to everything else.
- You want spots and maps: a GPS graph like the ICE HELIX 7. It also works on the boat in summer.
- You chase suspended crappies on big basins or roaming fish: live sonar is worth it. Budget for the whole kit, and for the battery to run it at -10°F.
Common mistakes
- Buying live sonar without a matching display. Check compatibility first.
- Gain set too high on a flasher, which fills the screen with clutter. Start low and raise it until your jig shows clearly.
- Running lithium batteries cold. Keep them insulated inside the shelter.
Quick questions
Should a beginner buy forward-facing sonar?
Usually not first. A flasher teaches you to read your jig and fish reactions, costs less and draws far less power. Live sonar needs a compatible display, transducer, pole and a large lithium battery.
How much power does a flasher use compared with live sonar?
The Vexilar FLX-28 draws about 260 mA at 12 V. Garmin lists LiveScope Plus at 21 W typical and 58 W max.
Related guides
- Forward-Facing Sonar for Ice: LiveScope Plus vs MEGA Live 2 vs ActiveTarget 2
- Ice Flashers Compared: Vexilar FLX-28 vs MarCum M1 vs Humminbird ICE Helix 7
Written by Cory Arnold, Iron County, Michigan. Specs checked October 2026.
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