Most ice anglers should start with a flasher like the Vexilar FL-8SE: it's simple, tough in the cold, and shows your jig and the fish coming to it in real time. Step up to a digital unit like the MarCum LX-7Li if you fish crowded lakes where other sonars cause interference, or a combo with GPS like the Humminbird ICE Helix 7 if you want to find and mark spots on new water. Live sonar such as Garmin LiveScope is a different tool: it finds fish around the hole, not just under it, and it costs several times more. Buy before the first good ice in December, when stock runs thin.
We earn a commission from qualifying purchases made through links on this page, at no extra cost to you.
Our picks at a glance
| Best flasher for most anglersVexilar FL-8SE Genz PackBeginners and anyone who wants a simple, tough flasher for panfish and walleye | 8.8 | Check price on Amazon | |
| Best digital ice sonarMarCum LX-7LiSerious anglers on busy lakes who want the most detail under the hole | 9.0 | Check price on Amazon | |
| Best sonar and GPS comboHumminbird ICE Helix 7 CHIRP GPS G4Anglers who fish new lakes and want maps, waypoints, and sonar in one unit | 8.7 | Check price on Amazon | |
| Best small combo with GPSGarmin Striker Plus 4 Ice Fishing BundleAnglers who want a flasher view and GPS waypoints in a small, light, affordable unit | 8.2 | Check price on Amazon | |
| Best live sonarGarmin LiveScope Plus Lithium-ion Ice Fishing BundleDedicated anglers chasing roaming crappie and walleye who want to see fish around the hole | 9.1 | Check price on Amazon |
Flasher, digital sonar, or live sonar?
A flasher shows what's directly under your hole as colored bands on a dial: the bottom, your jig, and fish rising to it. It updates instantly, has few settings, and is widely seen as the most dependable choice in sub-zero weather. If you mostly fish panfish and walleye on lakes you know, this is all you need.
A digital ice sonar or combo shows the same thing on a screen, often with a flasher view alongside a scrolling history. Better units separate fish that sit close to bottom or to each other, filter out interference from neighbors' sonars, and on combo units add GPS lake maps so you can find breaks and mark spots.
Forward-facing live sonar (Garmin LiveScope, Humminbird MEGA Live) shows fish swimming up to about 100 feet around the hole in every direction, so you can tell whether to stay or move without drilling more holes. It's the biggest change in ice fishing in years, but the units are heavy to carry and cost many times what a flasher does. Buy one if you chase roaming schools of crappie or walleye and fish often enough to justify it.
What matters most on the ice
Target separation: how close two targets can be before they show as one. Half an inch is excellent; the closer to bottom fish hold, the more this matters.
Interference rejection: on a crowded lake, other anglers' sonars put noise on your screen. Units with more interference settings stay readable.
Battery: lithium batteries cost more but run longer and hold up better in the cold than the older gel batteries. Charge fully the night before, and keep the battery inside your coat on the walk out on very cold days.
-
#1Best flasher for most anglers
Vexilar FL-8SE Genz Pack
8.8Best for: Beginners and anyone who wants a simple, tough flasher for panfish and walleye
Check price on AmazonThe FL-8SE is the flasher most ice anglers learn on, and for good reason. Outdoor Life's tester has used his for 30 years and calls Vexilar the 'Kleenex' of ice sonar.
It shows the bottom, your lure, and fish in three colors, with a 10-step interference filter. The Genz Pack bundles the self-leveling Ice-Ducer transducer, a 12-volt battery and charger, and the classic carrying case, so it's ready to fish out of the box.
Its limit is detail. Target separation is about 2.65 inches, so a fish hugging bottom can blend in, and on a crowded lake you'll spend some time fighting interference.
Type Flasher Display 3-color LED dial Target separation About 2.65 in Interference rejection 10 steps Battery 12V 7Ah, charger included Amazon price (Oct 31) $323.09 What we like
- Real-time view of your jig and fish
- Rugged and reliable in the cold
- Everything included: case, battery, charger, transducer
Watch out for
- Less target separation than digital units
- Can pick up noise from nearby sonars
Verdict: The safe first flasher. Buy it unless you know you need more detail or GPS.
-
#2Best digital ice sonar
MarCum LX-7Li
9.0Best for: Serious anglers on busy lakes who want the most detail under the hole
Check price on AmazonOutdoor Life calls the LX-7 'probably the most powerful, precise, and smartly engineered ice sonar' its tester has used. The LX-7Li is the version sold with a lithium battery, and its 8-inch screen can show a flasher dial and a scrolling graph side by side.
The two specs that set it apart are half-inch target separation, which picks out fish tight to bottom, and 12-step interference rejection for crowded community holes. A dual-beam 8/20-degree transducer lets you choose between a tight cone and a wider search.
It has no GPS, so pair it with a phone mapping app if you fish new water.
Type Digital ice sonar Screen 8 in color LCD Transducer Dual beam, 8 / 20 degrees Target separation About 0.5 in Battery 12V 10Ah lithium, charger included Amazon price (Oct 31) $829.00 (low stock) What we like
- About half-inch target separation
- 12-step interference rejection
- 8-inch color screen with flasher and graph views
- Lithium battery included
Watch out for
- No GPS or lake maps
- Costs more than a flasher
- Hard to find in stock: one listing left on Amazon when we checked
Verdict: The most detail you can get under the hole without stepping up to live sonar.
-
#3Best sonar and GPS combo
Humminbird ICE Helix 7 CHIRP GPS G4
8.7Best for: Anglers who fish new lakes and want maps, waypoints, and sonar in one unit
Check price on AmazonThe ICE Helix 7 combines a 7-inch sonar display with built-in GPS and Humminbird basemaps, and it works with LakeMaster and Navionics charts. Outdoor Life's tester used it as his main ice unit for three seasons.
That makes it the pick for finding spots, not just watching them: you can follow a contour to a drop-off, mark the hole that produced, and come back to it next weekend. AutoChart Live ICE records depth as you fish to fill in lakes with poor maps.
Target separation is about three-quarters of an inch, between the Vexilar and the MarCum, and you can switch between a circular flasher view and a widescreen graph.
Type Sonar and GPS combo Screen 7 in Maps Humminbird basemap; LakeMaster and Navionics compatible Target separation About 0.75 in Battery 12V 15Ah lithium with USB ports Amazon price (Oct 31) $1,099.00 (5-inch version $629.99) What we like
- Flasher and graph views plus GPS lake maps
- AutoChart Live ICE builds your own maps
- Ice shuttle with lithium battery and USB ports
Watch out for
- Expensive for a non-live unit
- More settings to learn than a flasher
Verdict: Buy it if finding fish on unfamiliar water matters as much as seeing them.
-
#4Best small combo with GPS
Garmin Striker Plus 4 Ice Fishing Bundle
8.2Best for: Anglers who want a flasher view and GPS waypoints in a small, light, affordable unit
Check price on AmazonThe Striker Plus 4 is the smallest, simplest way to get both a flasher view and GPS. The ice bundle pairs the portable unit with a dual-beam ice transducer, and Amazon buyers rate it 4.7 stars across more than 460 reviews.
Its small 4.3-inch screen is the trade-off: fine for one angler watching a jig, harder to read with gloves on or for two people sharing a hole.
At $379.99 when we checked, it costs a little more than the Vexilar. Pick it over the Vexilar if marking spots matters to you; pick the Vexilar if you want the classic flasher dial.
Type Sonar with flasher mode and GPS Screen 4.3 in GPS Waypoints Transducer Dual beam ice transducer Amazon price (Oct 31) $379.99 What we like
- Flasher mode plus GPS waypoints
- Small and light
- Highly rated: 4.7 stars from 464 Amazon reviews
Watch out for
- 3.5 in screen is small
- Setup is fiddly the first time
Verdict: A lot of capability in a small package if you can live with the small screen.
-
#5Best live sonar
Garmin LiveScope Plus Lithium-ion Ice Fishing Bundle
9.1Best for: Dedicated anglers chasing roaming crappie and walleye who want to see fish around the hole
Check price on AmazonLiveScope changed ice fishing. Instead of waiting for fish to swim under you, you aim the transducer and watch them swim toward or away from the hole, often well over 100 feet away. Outdoor Life's tester says that after several winters on crappie he 'can't imagine fishing without it.'
The bundle includes a 9-inch ECHOMAP UHD2 chartplotter with Garmin Navionics+ lake maps, the LiveScope Plus transducer on a pole mount you can rotate in every direction, a carrying case, and a lithium battery.
The downsides are cost and weight. It's the most expensive pick here by a wide margin, and the transducer arm and sonar box make it a chore to carry if you hop holes a lot.
Type Forward-facing live sonar + chartplotter Screen 9 in Range About 100 ft around the hole Maps Garmin Navionics+ Battery 16.5Ah lithium Amazon price (Oct 31) $3,299.99 What we like
- Live view of fish up to about 100 ft around the hole
- Includes 9 in chartplotter with lake maps and 2D sonar
- Big lithium battery
Watch out for
- Very expensive
- Heavy and bulky to move between holes
Verdict: The best way to find fish on the ice, if you fish enough to justify the price.
How we picked
We compared flashers, digital ice sonars, combo units, and live sonar on what matters through the ice: target separation, interference rejection, cold-weather battery life, portability, and price. We relied on hands-on testing from Outdoor Life and Field & Stream, and manufacturer specs. Prices change often in the weeks before ice season, so check the current price before you buy. Prices shown were checked on Amazon on October 31, 2026.