5 Best Depth Finder GPS Combo | Side Scan That Finds Fish

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The big-screen powerhouse that reads bottom contours at planing speeds.

Unlike smaller units that struggle to keep a lock when you are moving fast, this combo comes with a transducer that delivers Garmin CHIRP traditional sonar plus Ultra High-Definition ClearVü and SideVü scanning sonar with 20% greater range — so you see submerged trees, rock piles, and fish arches in sharp detail even when running at 20 mph. One reviewer confirmed it reads the bottom at 20mph, a capability most depth finders lose once you get on plane. The 9-inch touchscreen stays bright and readable in direct sunlight, and the keyed-assist backup means you can still navigate if your fingers are wet or gloved.

The preloaded LakeVü g3 inland maps cover more than 18,000 lakes with up to 1-foot contours, which saves you the hassle of recording every spot yourself. It also supports Panoptix LiveScope sonar if you want to see fish swimming in real time. The trade-off is weight — at 8 pounds it is significantly heavier than most combos, and one reviewer noted that the sun shade is not included and must be bought separately. If your boat has the dash space and you want the sharpest sonar images plus turn-by-turn lake maps, this unit justifies its premium position with sheer capability.

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Side-scanning clarity that fits a kayak or a small boat while staying affordable.

This is the unit that adds SideVü scanning sonar to the mid-range lineup, so you can look out to both sides of your boat for fish holding near ledges and submerged timber. It supports Garmin CHIRP traditional sonar plus CHIRP ClearVü and CHIRP SideVü scanning sonars, and it comes with the GT52HW-TM transducer right in the box. Buyers report it worked well for them on a small 12-foot semi-V boat, and one kayak angler mentioned upgrading from the previous Striker 7sv and learning to spot fish on the side scan, cast over, and catch them every time. At 454 grams it is also much lighter than the larger Garmin models, so mounting on a kayak rail or transom feels secure.

Wi-Fi connectivity lets you pair it with the ActiveCaptain app on your phone to transfer waypoints, get smart notifications, and access the Garmin Quickdraw Community for shared contour data. The 7-inch LCD screen shows seven vivid color palettes that make targets and structure pop. The catch — and it is a real one for map-focused anglers — is that it does not come with built-in lake maps. Owners mention you have to rely on the built-in Quickdraw Contours mapping, which records your own depth as you go. It is a smart solution for uncharted waters, but if you want instant contour detail on a new lake you will need to spend time mapping it first.

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A crisp 7-inch sonar image without side scan, priced to leave room for a good transducer.

The Striker Vivid 7cv shares the same 7-inch LCD screen and vivid color palettes as the 7sv above, but it uses only CHIRP ClearVü scanning sonar (no SideVü). That makes it a smart pick if you mainly need a sharp photo-like view of the bottom and structure directly under and immediately beside your boat rather than wide-off to the sides. The included GT20-TM transducer handles both Garmin CHIRP traditional sonar and CHIRP ClearVü, giving you solid target separation for fish arches and cover. Buyers call it a great depth and fish finder, well-built and durable, and one noted it is easy to operate with good separation on the screen.

At 4.7 pounds, it is more than ten times heavier than the 7sv but still manageable on a transom or trolling motor mount. The high-sensitivity GPS handles waypoint marking, route creation, and speed display, and the built-in Quickdraw Contours mapping records your own depth contours as you fish. Wi-Fi pairing with the ActiveCaptain app is also included. The honest limitation is that, like the 7sv, it has no preloaded maps — a few buyers found this misleading — so you will spend your first few outings building your own contour library. For the price, you get a bright, large screen with ClearVü clarity and reliable GPS navigation, which covers the needs of most inland anglers.

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A lightweight entry that brings real basemaps and AutoChart Live to the table.

At just 2.12 pounds, the Helix 5 G3 is the lightest unit here — a 3.8x weight gap compared to the 8-pound Garmin ECHOMAP — yet it packs Dual Spectrum CHIRP sonar that gives you two search modes: Wide Mode for maximum coverage and Narrow Mode for detailed target scanning. The 5-inch Color TFT display is small but bright enough to read in the sun with the help of a visor, as one buyer mentioned. It runs Humminbird Basemap with coverage of over 10,000 lakes plus continental U.S. coastlines, so you have useful detail right from the start without needing to fish blind until you create your own maps.

Where this unit really punches above its size is AutoChart Live. It creates real-time maps of depth contours, bottom hardness, and vegetation as you drive, with eight hours of built-in recording time. You can expand that capacity with AutoChart Zero Line SD cards. The keypad controls feel reliable in wet weather, and reviewers point out that the GPS is accurate and the screen is crisp. A few mention the menu navigation takes some getting used to, and the 5-inch screen feels small if you are used to a 7-inch or 9-inch display. Still, for someone new to GPS combos or fishing a smaller boat where dash space is tight, this delivers essential GPS navigation and real-time mapping at a low weight.

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An all-in-one kit with a carrying bag and battery so you are fishing fresh from the start.

This version of the Helix 5 goes further than the bare-bones unit by bundling a shuttle bag, a 7Ah AGM battery and charger, and a suction cup mount beside the usual gimbal bracket. That means you can unpack it, connect the transducer, drop it on a rental boat or a kayak, and have power and mapping running in minutes. The suction cup mount on the XNT 9 HW T transducer makes it easy to move between boats without drilling holes, which is a real plus for anglers who fish from multiple platforms.

Under the hood it shares the same Dual Spectrum CHIRP sonar and Humminbird Basemap with coverage of over 10,000 lakes and U.S. coastlines. AutoChart Live is included for real-time depth contour and vegetation mapping with eight hours of built-in recording. The maximum depth rating goes to 3000 feet, giving you confidence on deeper reservoirs or coastal waters. Since this kit includes the battery and charger, there is no separate shopping for a power supply. The only real trade-off versus the standard Helix 5 is the suction cup transducer mount: it works well on a clean hull but may lose grip if the surface is rough or you hit a wake at speed.