What’s the Best Spearfishing Knife in 2021?

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Spearfishing knives have one purpose – provide the last rites to your fish. But at the same time, these knives can be extremely versatile and is a helpful companion for other purposes as well. Such knives usually come with different sides for the blade and low profile design and other extras that make them quite versatile.

Now, choosing the best spearfishing knife asks for a little research before spending your money. You will have to explore a growing market with numerous options – from more or less known manufacturers. You need to assess your needs and go through others’ reviews and consideration. Here is our take on top spearfishing knives in the market.

What’s an Ideal Spearfishing Knife?

BUBBA 3.5" Pointed Dive and spearfishing Knife with Non-Slip Grip Handle

A spearfishing knife should have a very pointy tip, as you need to penetrate easily. At the same time, a bit of thickness and sturdiness are mandatory because the pointy tip might break. The side with the blade is most commonly used for cutting applications, not to mention gutting the fish. Most knives come with a serrated side as well – generally used to cut rope or line, as it is more efficient for such uses.

When it comes to extras, while not all the knives have it, a spear removal tool is just as important. This tool slides over the spear, letting you twist it out. The spear will come out within a few seconds then, with no effort whatsoever. As for the knife itself, it is supposed to be quite lightweight and super sharp. Most knives feature a straight fixed blade. You may be able to find some folding spearfishing knives as well.

You will find spearfishing knives with blades made of titanium and stainless steel. The titanium blades are resistant to rust and require minimal maintenance. The downside is they are harder to sharpen and usually cannot be made as sharp as steel. The steel knives are not only easier to sharpen, but also hold an edge well.

2021’s 5 Best Spearfishing Knives

Audeamus Knife

Audeamus does not fool around when it comes to quality. Its best spearfishing knife is versatile and well-built. It is great for spearfishing, scuba diving, and snorkeling.

This knife comes with a premium titanium alloy blade. The Gr. 5 – Ti-6AI-4V – titanium alloy is lightweight, durable, and resistant to corrosion. There will be no rust whatsoever, while the maintenance required is minimal. The blade is very sharp out of the box.

The knife features a 5-inch blade with straight and serrated edges. The dark appearance of the blade prevents reflections, which is quite handy when hunting. The knife is well balanced – the handle is a bit longer than the blade and ensures good control.

The knife comes with its own sheath. It actually locks into the sheath, so there is no way you will ever lose it. The premium locking mechanism can keep the knife secure even when exposed to high pressure underwater.

Heavy-duty leg straps are also included to keep it around your thigh for easy access. The handle is rubberized and will never slip out of your hands. It is black and ergonomic, but it also has a solid end for braking.

Pros
  • Durable titanium alloy
  • Comes with a secure sheath and leg straps
  • Ergonomic and nonslip handle
  • Rust and corrosion resistance
  • Stable and well balanced
Cons
  • Straps could have been a bit better

Akona Talon Knife

Akona specializing in Watersports is popular for its value for money products. Its best spearfishing knife comes in a black and yellow combo and is ideal for spearfishing or diving activities.

The blade is made of titanium. It is light, solid, durable, and excellent in terms of rust and corrosion resistance. Furthermore, it requires little to no maintenance. You can purchase the same knife with a stainless steel blade. The steel option much cheaper and suitable for those who shop on a budget.

No matter which option you choose, the overall design is the same. The blade is relatively long and measures 4.5 inches in length. The handle is a bit longer ensuring full control over it. The blade is thin and feels comfortable to use underwater. The non-cutting edge is a bit thicker, adding to the overall sturdiness.

The point is sharp, as well as the cutting edge. The other edge is serrated for ropes and lines. As for the handle, it has a large hand guard protection and an ergonomic profile. The end is metallic and flat for braking. The rubberized profile ensures the knife will never slip out of your hand.

In terms of extras, you get a sheath to cover the blade in a safe manner. Once in there, the knife is secured with pressure locking tabs. Moreover, a few straps are also included – both of them made of rubber. They can attach to your thigh or calf. When it comes to maintenance, there is not much to do – just avoid cleaning it in a dishwasher.

Pros
  • Durable, rust, and corrosion-resistant titanium blade
  • Good control
  • Ergonomic and comfortable handle
  • Rubber straps and sheath included
  • Available in stainless steel blade as well
Cons
  • The sheath could have been a bit better, as it feels very stiff

Promate Barracuda Knife

Promate makes some of the sturdiest and most aggressive knives out there. This is a diving knife, yet it is excellent for spearfishing as well. While the design is the same, it comes in a plethora of colors. There are no differences in terms of performance or quality between the versions.

Unlike other similar knives that feature stainless or high carbon steel, this knife comes with a titanium blade. If well looked after, this knife will last for ages. It has a beautiful black appearance and a matte style that prevents reflections – great for hunting purposes. The handle is also black, yet choosing other colors may bring a colorful spot on the handle.

The blade measures five inches in length. It has a pointy tip and a razor blade edge. It comes very sharp out of the box, so be careful when you unpack it. The edge also has a slight hook close to the handle. The non-cutting edge is serrated and will help against rope or line, as well as emergencies. As for long-term care, titanium has incredible corrosion resistance.

The handle is not to be overlooked either. It has a nonslip surface that will provide an excellent grip even when your hands are wet. It is molded and ergonomic – one specific position for each finger. The end of the handle has a hammer for emergencies. Other than that, there is handguard protection for each side of the handle – better to be safe than sorry.

The knife comes with some straps, which are easy to adjust. They also ensure a quick release for emergencies. It has its own hard sheath for carrying and protection, as well as a small lanyard hole. It can be disassembled for easy cleaning and maintenance.

Pros
  • Extremely durable and resistant
  • Suitable for more applications
  • Can be disassembled for easy maintenance
  • Requires very little maintenance
  • Solid and well balanced
Cons
  • It takes a while to get used to the straps

Aqua Lung Argonaut Stunt Knife

Aqua Lung is well known for its specialized knives and this one stands out in the crowd with its value for money products.

The blade is made of 420 stainless steel. It has good resistance to corrosion and rust. It is easy to sharpen and will retain its edge for a long time. The tip is pointy and sharp. There are two edges. The straight edge is razor sharp out of the box. The other one is serrated and can come in handy for various situations, such as cutting ropes.

The blade measures three inches in length. The paracord-wrapped handle measures four inches in length. It is good for both small and large hands. The entire knife has an EDP coating, which will prevent reflections while hunting.

The knife is about four millimeters in thickness. The paracord is great to prevent slipping. However, there is great handguard protection on each side of the handle. You can also customize the paracord in various ways or perhaps replace it if it wears out. The handle butt is a bit sharp and comes to a point – good for crushing, braking or hammering.

The knife comes with a Kydex sheath of two millimeters in thickness and 1/8 inch grommets. Its strap holes are about an inch long – there are more ways to attach it though. Make sure you clean the knife manually, rather than using a dishwasher.

Pros
  • Available in two styles
  • Durable and solid design
  • Easy to look after
  • Paracord handle
  • Comes with its own sheath
Cons
  • Paracord tends to wear out after too many uses

Thresher Titanium Dive Knife

Thresher’s dive supply knife is a versatile tool with numerous other applications. It will ease your spearfishing experience and provide some extra convenience in the process. The knife has a classic profile and comes in a few different colors. You can get it with a blunt tip, but then, it is no longer useful in spearfishing. Instead, get the sharp tip.

The grip will not disappoint you. Since it is rubberized, the handle will never slip out of your hands – whether you use it underwater or with wet hands. The grip is great and the ergonomic profile adds to its comfort.

The blade of the knife is made of titanium alloy. This type of alloy has incredible strength, but without compromising on the weight, and is rust-resistant. The blade has a sharp point, a razor-sharp edge, and a serrated edge. It measures five inches in length. A small hook by the handle is also built-in.

Just like other similar knives designed for such purposes, this one comes with long straps. You can strap it around your arm or thigh, so reaching it is a matter of a second. It has handguard protection to prevent accidental injuries. The ergonomic handle measures just over five inches in length and has an end cap

The knife can be dismantled for easy maintenance and cleaning. Try to clean it manually and never in a dishwasher though, as it might make the edge dull. 

Pros
  • Durable and resistant titanium alloy
  • Rubberized textured handle for a great grip
  • Great for more activities that involve diving
  • Comes with adjustable straps
  • Has its own sheath
Cons
  • Straps might feel a bit too long

Conclusion

Most of these knives are built as diving knives and can be used for spearfishing purposes.  While there are some good options and some solid brands out there, Akona’s knife is one of the leading options out there as it has all the main requirements of a spearfishing knife. It checks all the points – durability, sharpness, ease of use, and minimal maintenance.