Top 6 Best Dive Knife Reviews and Ultimate Guide

best dive knife

The ultimate guide about choosing the best dive knife is here. This guide will cover in-depth comparisons of specifications and features of the knives for diving. We will also be looking into all sorts of different brands for diving and everything else.

So, sit tight and read carefully to know each and everything about diving knives. By the end of this guide, you will have learned a lot of info about the diving knife to make a purchase yourself.

I. Best Dive Knife Comparison Table

Special feature
Promate Scuba Dive Snorkel Titanium Knife (4 3/8" Blade) with straps and sheath
best dive knife

Titanium hammer on handle button

Editor's Choice

BOffer Scuba Diving Knife - Black Tactical Sharp Blade knives)
BOffer Scuba Diving Knife

Two sheaths, one of nylon


Cressi Borg, Long Blade Diving and Spearfishing Knife
Cressi Borg, Long Blade Diving and Spearfishing Knife

Green high visibility

Promate Scuba Diving Snorkeling Sharp Tip Stainless Steel Knife (5" Blade)
Promate Scuba Diving Snorkeling Sharp Tip Stainless Steel Knife

Quick release button and adjustable straps

Cressi Lima (2.95" Blade) Tactical Dive Knife,for Scuba Diving, Snorkeling and Water Sports
Cressi Lima Tactical Dive Knife

Locking mechanism on the sheath

Promate Barracuda Sharp Tip Titanium Diving Knife (5-inch)
Promate Barracuda Sharp Tip Titanium Diving Knife

Titanium hammer on the handle bottom

II. Best Dive Knife Reviews

  1. Promate Scuba Dive Snorkel Titanium Knife (4 3/8" Blade)

   1.1 Short review: 

There is easy grip rubber present on this dive knife that makes it comfortable to grip it. Moreover, the presence of sheath and adjustable straps make it easy to hold it even. Most importantly, it is super lightweight and can be carried way too easily than the other dive knives. The titanium hammer on handle bottom is the reason that it takes the jump on the other dive knives in the industry. Do not go for its standard and a bit generic box as it really does have some amazing features on it.

best dive knife

Editor's Choice

   1.2 Special things of this product: 

This is a full size knife that offers multiple uses and benefits, unlike the standard dive knives. The most important feature on it is the presence of stain and corrosion resistant titanium for longer than ever use. Besides that, there is straight edge full tang blade on one side and a partially serrated edge with a line cutter. In addition to that, there is also a blunt or drop point tip option for you to choose from. The presence of all these features in a single dive knife is just amazing to have. We hope you will love this knife just as much as we do.

best dive knife

 1.3 Things we like and dislike

Things we like: 

  • Double button push release for double secure lock
  • Acrylonitrile butadiene styrene plastic sheath
  • The option to choose blunt or drop point tip knife
  • Titanium blade
  • Ergonomic and rubber grip

Things we dislike: 

  • The tip is probably too delicate
  • The calf side is not smooth

   1.4 Who should get it? 

Now we are talking about a titanium blade that will have a longer than ever life. Most importantly, it will offer special protection against daily wear and tear and especially rust. Rust is the most common error that the divers and snorkelers get when they are under water.

  2. BOffer Scuba Diving Knife - Black Tactical Sharp Blade knives

   2.1 Short review: 

If you are into diving and you are looking for the knife that will support you and make your diving experience amazing, then you have landed to the right place. This is because this diving knife has a sheath for leg, arm and belt. Made of stainless steel, it comes in ready form and you can use it for fishing, snorkeling and diving.

For your comfort, you can rest easy, knowing that it can be attached to your arm while you are underwater. Also, there is an option to mount it on your belt for easy and instant access.

   2.2 Special things of this product: 

Unlike most of the traditional snorkeling knives, this one comes along with sheaths that are manufactured from ABS. This is such a special feature that makes sure that your knife is not blunt. 8.66 inches overall length makes it the perfect choice for snorkeling, diving and other activities such as fishing. Among the two sheaths that come with it, one is made of hard plastic for higher durability. On the other hand, this one also has a safety release button. Not to mention the adjustable straps that give you the choice to tie it on your leg and enjoy tension free

 2.3 Things we like and dislike

Things we like: 

  • Nylon sheath
  • Hardness of the knife is at 58HRC
  • The water drain hole design for a hygienic storage
  • ABS plastic for higher durability
  • Comfortable and durable material

Things we dislike: 

  • The rust issue that arises, most commonly a user error but sometime annoying.
  • Sometimes, unstretchy straps for poor fitting

   2.4 Who should get it? 

Overall, it is a fairly decent swimming knife with a number of good options and feature in it. However, this means that it could be a good option for new comers and starters. Besides that, experienced snorkelers and pros can also use it for a good experience under water.

  3. ​Cressi Borg, Long Blade Diving and Spearfishing Knife

   3.1 Short review: 

Now, if you want really good value to money and be satisfied about your purchase, this is the option to go for. This is because there are a number of features that make it a great choice. Firstly, the Japanese 304 stainless steel is enough for a really good durability. Secondly, the straight-edged and serrated one is good for different people. Moreover, the locking option present in the sheath allows you to be comfortable and safe while carrying it. Last but not the least, the two issue straps present in it are great to have along on a snorkeling or diving experience.

   3.2 Special things of this product: 

The modern and large snorkeling and diving knife has a futuristic design. It makes sure that the users get maximum comfort and durability out of it. Most importantly, the 2 standard issue straps are the ones that always come in handy. Overall, the knife is super lightweight and easy to carry around. The small technopolymer thumb tab are super useful when it comes to line cutting and similar tasks. Overall, you will love this knife because it delivers great value to money for the price.

   3.3 Things we like and dislike

Things we like: 

  • The Japanese 304 stainless steel is enough for a really good durability
  • Small techno polymer thumb tab
  • Straight-edged and serrated option
  • High quality and durable
  • Long-lasting material

Things we dislike: 

  • Hand guard starts to rust
  • Maybe it is too big for people to carry it around

   3.4 Who should get it? 

While it delivers good value to money, but it costs more than the standard snorkeling and diving knives. Though it is not the best dive knife but could be a good option for people that are starting their way on a journey to diving and snorkeling.

  4. Promate Scuba Diving Snorkeling Sharp Tip Stainless Steel Knife (5" Blade)

   4.1 Short review: 

Now this knife has a lot of info attached to it. For example, it is from the same company that offered titanium dive knife. However, this one is the stainless steel and there is Stainless steel hammer on handle bottom. Besides that, there is also an in-demand feature in it; the quick release button. Moreover, the straps can also be adjusted manually for superior fitting and maintenance. Overall, it is a really good dive knife that delivers perfect value to money and durability for the price that you pay for it.

   4.2 Special things of this product: 

On the surface it looks like a really ordinary stainless steel knife but has great features about it. Technically speaking, it is a 2-sided knife and this is a really useful feature for diving. There is another feature in it that doesn’t look that important but becomes extremely handy when present. You guessed it right, we are talking about the easy disassembly option. It makes the user clean and clear the knife quite comfortably whenever they want. So, what are you waiting for? Let’s get to it and try this dive knife on your next under water experience.

   4.3 Things we like and dislike

Things we like: 

  • Easy disassembly for clearing the knife
  • Quick release buckle for user ease
  • Perfect value to money
  • Lubricant on steel
  • High quality and durable material

Things we dislike: 

  • Rusts fast and poor life
  • This is good for salt water but not perfect

   4.4 Who should get it? 

Overall, this is a good dive knife that has been popular due to its great features and specifications. Moreover, the knife is wicked sharp and never disappoints and can be easily adjusted to one’s life jacket. Great option for snorkelers and divers.

  5. Cressi Lima (2.95" Blade) Tactical Dive Knife, for Scuba Diving, Snorkeling and Water Sports

   5.1 Short review: 

This is the kind of dive knives that make people fall in love with them because of their amazing features. It is super durable, reliable and the best thing is that it comes in both steel and titanium variants. It is a compact and lightweight knife and this means that you can also attach it with a BCD or gauge hose. This will grant you easy access and you will be able to handle the knife perfectly. Most importantly, there is line-cutting notch for cutting small ropes and fish lines. All in all, it is the best dive knife with multiple good features in it.

   5.2 Special things of this product: 

One of the best emergency dive knives around the globe. It is a super desirable knife, especially for the spear fishermen and special thing is that it is compact, so you can carry it around quite comfortably.

Moreover, it can also be fitted in perfectly to the diver’s belt. The locking mechanism present in the knife is super easy to understand and master. Besides that, the steel used in the manufacture of the knife is Japanese 420 steel. This means that it would be really sharp and will offer great service for extensive use.

   5.3 Things we like and dislike

Things we like: 

  • Japanese 420 steel for ultimate experience
  • Separation of sheath from the blade by a small techno-polymer
  • The super comfortable leg and arm straps
  • Quite smooth edge on the side and serrated on the other
  • Non-slip handle for better grip

Things we dislike: 

  • Rusts too soon
  • Gripping is not as one expects

   5.4 Who should get it? 

Therefore, given its great deal of features and specifications, one can say that it would be the best dive knife for everyone. However, precaution should be taken under water, in case of emergencies. So, only the experienced and regular divers should use this dive knife, just to be on the safe side.

  6. Promate Barracuda Sharp Tip Titanium Diving Knife (5-inch)

   6.1 Short review: 

There is a quick release button for your comfort and convenience and the adjustable straps give you ideal fit. These two features are super important to make your snorkeling experience comfortable and memorable. Moreover, there is easy disassembly option that makes sure you can clear it super easily. This is also the reason why that this knife needs only little or no maintenance at all.

Given its features and specifications, this dive knife is made with the professional divers in the mind. It is very sharp and this option comes in handy on a number of occasions, especially in case of emergencies.

   6.2 Special things of this product: 

The titanium blade makes sure that you are able to use it for longer time periods than ever. With the addition of quick release button and easily disassembled straps give you the most perfect fit. You also have the option to clear it quite easily and this is also the reason that you are able to clear the knife and it needs no extra or special maintenance.

Especially the fact that this knife is made with the professional divers in mind, it has great durability. We hope you like the experience if you get it and have positive reviews.

   6.3 Things we like and dislike

Things we like: 

  • Titanium blade – it is meant for ultimate premium and luxurious experience
  • Built to last longer than the traditional knives
  • Very sharp end – cuts everything easily and quickly
  • Quick release button
  • Easy disassembly for cleaning and maintenance

Things we dislike: 

  • Rusts easily
  • Sometimes, the users face problem when taking the knife out of the belt

   6.4 Who should get it? 

Therefore, we have to recommend that it is the kind of knife that only the professional divers can make the best of. Also, given the fact that the manufacturer has themselves stated that this has been manufactured with the professional divers in mind, so we would recommend it in the same manner.

III. How to choose the best Dive Knife?

best Scuba Mask

Choosing the best dive knife is not an easy task as it is a matter of your safety. It takes courage to go underwater, relying on just a knife so research must be done on the dive knife. Below are the 5 factors that you need to take into account when choosing the best dive knife. Compare different products on the basis of these 5 factors and see which one fits your preferences.

  1. Durability

Durability plays an important part in choosing the best dive knife as per your needs. You have to be conscious enough to know the difference in material of various knives. However, if you are ordering online, then go for the one that has comfortable grips and rubber grips. Go for titanium over the steel if you are looking for some added comfort

  2. Budget

The higher the amount of money you throw on the purchase of dive knife, higher the specifications you are getting. It is good to set a budget for yourself and compare the prices of different dive knives to see which one you can afford. You will come across knives of various price ranges as you explore the online marketplace for snorkel.

  3. Size

Usually, the standard size if perfect for going under water and it does not cause any discomfort at all. The standard size suits all the adults and it comes in handy, especially in the case of emergency, for cutting the rope or any other thing. However, if you are extra tall or short, you can choose whichever size you seem best.

  4. Type of blade 

Type of blade matters a lot when you are going under water. Remember that the knife is an important aspect of snorkeling, diving and more. However, the dive knives come usually in 2 type of blade; Fixed blade or foldable blade. This depends upon the type of preference you have.

For example, foldable blade is more discrete and is also easy to hide as well. Fixed are strong and big, easier to maintain and have superior tactical use. Foldable blade are also easier to carry than the traditional fixed blade. So, you can make your decision as you like.

  5. Shape of the blade 

A drop point blade has a convex curve to the spine as it approaches the tip of the blade. This again depends upon the kind of use you are going to take from the blade. For cutting and tearing things apart, such as clothes or any other material, edge of the blade works better. However, tip of the blade works well in other circumstances.

Besides that, given all these factors, you should be able to make your decision pretty easily. If not, you can visit again and take a closer look to revise the information that you received and then go shopping.

IV. How to clean and care a Dive Knife?

The most common issue that the users of the dive knife face is that the stainless steel starts to rust. This is because of the high carbon content as carbon creates tensile strength. You have to properly take care of the dive knife to ensure it has a long life. Most importantly, you should rinse the knife well with fresh water after every dive. Do not forget to dry the outside of the sheath.

Besides that, the storage of the knife also matters a lot and the best is Coat blade with a light layer of oil or silicone. Most commonly, the knife is disassembled, so take it apart and rinse the individual pieces in fresh water. This helps prevent salt buildup and corrosion from happening underneath. Even if you knife has started to rust, you can fix it by soaking the knife in distilled white vinegar for about five minutes. This will make sure to rid your knife of the rust and make it look like a new knife again.

Taking proper care of the dive knife will definitely elongate its life and also improve your diving experience.

V. Conclusion

We hope that you got to learn a lot from this guide to choose the best dive knife for yourself. We covered in-depth topics, comparisons of the different brands that made knives. Each brand came up with different set of features and it was hard to choose the winner. We also had to take into account the value for money that each knife offered. However, there can only be 1 winner for the day and our winner for today is Promate Scuba Dive Snorkel Titanium Knife (4 3/8" Blade) with straps and sheath.

Most importantly, we have taken our decision based on a number of factors. First of all, its super quality titanium build is amazing. Acrylonitrile butadiene styrene plastic sheath along with a number of other options made it an irresistible option really. It also delivered great value to money and we hope that you agree with your conclusion. Hope to get in touch with you again with a new article on snorkeling or diving, so stay tuned.

Click Here to Leave a Comment Below 1 comments
folorentorium - March 14, 2019

I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post…


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