Scuba Gear 101 ~ For Divers & By Divers

Torben Lonne
By
Torben Lonne
Editor and Co-founder at DIVEIN.com
Torben traveled to South East Asia for scuba diving and never really stopped his search for new adventures. His affinity for gear that works and his...
Bradley Axmith
Senior Editor at DIVEIN.com
Bradley grew up feeling more at home in the national parks of Canada than in the city. Having an affinity for the seasons and a penchant...
Summer Worsley
Collaborator at DIVEIN.com
Summer is a former dive instructor from New Zealand that has the Great Barrier Reef as her playground. She has been writing for DIVEIN about scuba...
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At DIVEIN, we test new scuba gear weekly.
After testing, we’re giving most of the gear away to readers of our newsletter!
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Scuba Gear & Dive Equipment

Here is DIVEIN’s Equipment 101 where we tell you all about the scuba gear and what you need to know.

We have separated the articles into smaller bits, concentrating on one main theme.

Here you’ll find a quick summary of the equipment and plenty of in-depth reviews of the equipment.

Here’s the dive equipment we’ll cover in this guide. Click the links to jump to the gear.

BCD – Regulators – Wetsuits – Drysuits – Dive Masks – Full Face Dive Masks – Snorkels – Scuba Fins – Dive Computers – Dive watches 

Newsletter Form (inline)

We’re giving away Scuba Gear!

At DIVEIN, we test new scuba gear weekly.
After testing, we’re giving most of the gear away to readers of our newsletter!
Join our newsletter to learn more:

You can always unsubscribe for free⎪

BCD or Buoyancy Control Device

The BCD, also called BC, stands for Buoyancy Control Device or Buoyancy Compensator. It’s the vest that holds the tank. But, most importantly, it’s the one you use to control buoyancy.

The BCD has many different features to control the buoyancy, depending on the brand and type.

There are an inflator and a deflator mechanism and on a typical BCD (this is used to add or release air to and from your BCD). The inflator and deflator are usually located on a hose connected to your left shoulder.

Most BCDs come with a few pockets and D rings for carrying gadgets on the dive; some having weight pockets as well.

BCD’s come in different forms and shapes: jacket-types and wing-types. The jacket is more popular for most divers and gives great comfort underwater and in the surface. The wing-type BCD gives better buoyancy and enables a perfect horizontal possession during the dive.

Here are some great BCD’s you should look at before deciding which to buy.

Review of Cressi Start BCD BCD review

The Cressi Start was initially intended to be used by dive schools and resorts. It has a basic design but is highly functional making it ideal for beginner divers too.

One nice feature is that the waist strap is independent of the air bladder, so if you tighten it while the jacket is deflated, it’s not going to squeeze your stomach too much when you inflate.

If you are looking for a BCD that is reliable and almost bullet-proof, the Cressi Start is a great entry-level option.

Things we like:

  • The waist strap is separate from the air bladder.
  • Inflator hose is easily disassembled for cleaning.
  • From a dive center perspective, the size is clearly displayed on the shoulder pad.
  • Great value for money.

Things we don't like:

  • No metal D-rings.
  • Edges of the shoulder straps are a little rough and can chafe against the neck.
  • The chest strap is quite high.

Specs & Features

TypeJacket
Capacity29.2 lbf / 13.25 kgf (XS) to 45 lbf / 20.4 kgf (XL)
Integrated WeightsNo
Number of air bladders/cellsOne
Number of dump valvesThree
Number of D-ringsTwo plastic
Designed forUnisex

Review of Sherwood Luna BCD BCD review

Definitely, a BCD designed with women divers in mind. It features thick padding on the inside with a plush nylon finish. The jacket and air bladder are specially cut for a snug fit to female curves.

Sherwood uses a unique Halfpac backplate which offers the versatility of soft backplate with the stability of a hard backplate. This means it’s extra comfortable but will also hold your cylinder firmly in place.

One great feature of the Sherwood Luna is the padded neoprene neck. A small hint of color adds a nice feminine touch.

Things we like:

  • Slimmer cut for women.
  • Extra padding at the back of the neck.
  • Stylish design.

Things we don't like:

  • If diving in cold water, there may not be enough releasable weight (16 lb / 7.25 kg).
  • No right shoulder exhaust valve.
  • Zippered weight pockets.
  • Would be nice to be able to pick your color!

Specs & Features

Type: Jacket
Capacity: 18 lbf / 8.16 kgf (XS) to 25 lbf / 11.34 kgf (L)
Integrated Weights? Yes
Number of air bladders/cells: One
Number of dump valves: Two
Number of D-rings: Three stainless steel
Designed for: Women

See all BCD’s

Scuba Regulator

The regulator set consists of a 1st stage, which is mounted on the tank valve. Then there are two regulators in the 2nd stage: a pressure gauge and a low-pressure inflator hose that is attached to the BCD inflator.

  • The regulators have a primary and an alternate air source. The alternate air source is for you or your buddy in an emergency or a back up is needed.
  • A modern regulator is a demand valve regulator, which means it give you air when you want it. When you breathe in, air flows from the tank through the 1st stage and to the 2nd stage supplying air to you.
  • The pressure gauge shows how much air is in the tank and usually has a caution area that warns you when the air is getting low.

Read more about How to Choose a Scuba Regulator

Review of Apeks XTX40 Scuba Regulator Scuba Regulator review

It wouldn’t be a list of the best regulators without an Apeks or two (or three). The XTX40 is one of the company’s affordable models. Despite the very tempting price point, it’s more often viewed as a high-end product.

Loved by techies for their reliable deco reg performance and by recreational divers alike, the XTX40 offers a lot of bang for your buck.

Things we like:

  • Good for cold water diving
  • Balanced and environmentally sealed.
  • Braided flexihose comes as standard.
  • Exceptional breathability for the price.
  • Suitable for mixed gas diving and 100% O2 after being O2 cleaned.

Things we don't like:

  • There’s really not a lot to criticize here but if we’re really being tough we could point to the o-ring in the swiveling first stage. Because of the design, after a few years, you may see some tiny bubbles escaping from the join point.

Specs & Features

Valve: A-clamp
First stage: Balanced
HP ports: Two
LP ports: Four (with the option for a fifth)
Cracking/flow adjustment knob
Venturi switch
Left to right-hand conversion possible.
Environmentally sealed? Yes.
40% EANx safe? Yes.

See all Scuba Regulators


Frequently Asked Questions about the Scuba Gear

What is the Best Scuba Gear to get in 2026?

The right scuba gear is essential not just for the diver’s safety, but also for elevating the dive experience.

Here’s a list of the best scuba gear our team at DIVEIN has tested:

Best Overall BCD: Oceanic OceanPro BCD
Best Overall Scuba Regulator: Apeks MTX-R
Best Overall Scuba Wetsuit: Bare 5mm Velocity Ultra Men’s
Best Overall Scuba Diving Drysuit: Bare X-Mission Evolution
Best Overall Scuba Diving Mask: Cressi F1
Best Overall Full Face Dive Mask: Scubapro Full Face Mask
Best Overall Snorkel: Omer Sub Zoom Pro
Best Overall Scuba Fins: Oceanic Viper 2 Open
Best Overall Dive Computer: Garmin Descent Mk2 & Mk2i
Best Overall Dive Watch: Seiko Prospex Samurai Save The Ocean SRPC93

What are things to consider when buying Scuba Gear?

The right set of scuba gear is essential for a safe and successful dive trip. With that said, it’s important to keep in mind fit, comfort, and suitability.

Once you’ve got the basics covered (i.e. Mask, Fins, Snorkel), it’s important to spend at least twice as much time researching on the major pieces such as your:

BCD or Buoyancy Control Device and
Scuba Regulator

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