Fish Finders: warranties compared

7 brands. We read every warranty so you don't have to. Checked through October 2026.

The short version

4 of 7 brands cover fish finders in full for one year or less. The longest full coverage is 3 years, from Humminbird and Raymarine. 2 brands keep some parts covered after full coverage ends.

Every brand, side by side

Full coverage: everything, parts and laborPartial coverage: some parts only, you usually pay labor
Sort by
#BrandWarranty ScoreFull and partial coveragePurchase5 yrs10 yrs+
1Humminbird38 / 100Full: 3 yearsNo partial coverage
2Raymarine38 / 100Full: 3 yearsNo partial coverage
3Garmin32 / 100Full: 2 yearsNo partial coverage
4Deeper23 / 100Full: NonePartial: to 5 yearsPartial covers: CHIRP series sonars; START, PRO, MAX, QUEST sonars and accessories
5VexilarVaries by model line21 / 100Full: 1 yearNo partial coverage
6MarcumVaries by model lineCheck your model's manual16 / 100Full: 1 yearNo partial coverage
7Aqua-Vu13 / 100Full: NonePartial: to 1 yearPartial covers: Whole product

From each maker's published warranty. “Unverified” means we couldn't confirm the terms on the maker's own site. How we rate warranties

The fine print, decoded

What these warranties often leave out

  • Accidental breaks and misuse3 of 7 brands
  • Batteries2 of 7 brands
  • Normal wear and tear2 of 7 brands
  • Water damage2 of 7 brands
  • Stopping working from outside causes1 of 7 brands
Where you buy it matters

How long stores give you to return it

Longest return window first, for fish finders.

  1. WalmartMost items90 days
  2. ScheelsMidwest and Mountain West storesMost items90 days
  3. Bass Pro ShopsMost items60 days
  4. Cabela'sMost items60 days
  5. West MarineMost items60 days
  6. Sportsman's WarehouseMost items30 days

From each store's published return policy, using its rule for fish finders where it has one. Member and holiday extensions aren't counted. Check yours before you buy.

More Fishing & Hunting warranties

Questions shoppers ask

Which brand of fish finders has the best warranty?

On paper, Humminbird scores highest, with 3 years of full coverage.

Is a long warranty on fish finders really that long?

Often not for the whole product. Many longer warranties cover only certain parts after the first year or two, and you usually pay for the labor. The bars above show full and partial coverage separately.

Do I need to register to get the warranty?

3 of 7 brands require registration for some of their coverage, often within a set number of days. Keep your receipt either way.

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