CREST CR-4 Dive Computer

CREST CR-4 Dive Computer

A Great Choice for Beginner and Recreational Divers

The CREST CR-4 Dive Computer is one of our best-selling dive computers and a great choice for beginner and recreational divers who want something simple, reliable, and easy to use. It gives you the key dive information you need underwater without making things feel complicated.

Rated to 100m / 330ft, the CR-4 supports Scuba, Gauge, Apnea/Freediving, and Nitrox diving. It also supports Air and Nitrox from 21% to 56% oxygen and uses the Bühlmann ZH-L16C algorithm.

With a rechargeable battery, fast charging up to 85% in 1 hour, audible and vibration alarms, and 900+ dive log storage, the CR-4 is a practical everyday dive computer for training, travel, and regular diving.

New in 2026: The DIVEROUT App (V 8.40) is available for iOS users. The app is free to use with no subscription needed. Android users can continue using the DIVE STORY PRO App until the Android version of DIVEROUT is released.

Features and Benefits

• One of our best-selling dive computers
• Great choice for beginner and recreational divers
• Simple, compact, and easy to use
• Supports Scuba, Gauge, Apnea/Freediving, and Nitrox diving
• Rated to 100m / 330ft
• Supports Air and Nitrox from 21% to 56% oxygen
• Uses the Bühlmann ZH-L16C algorithm
• Adjustable safety factors: Conservative, Normal, and Aggressive
• Rechargeable lithium-ion battery
• Fast charging up to 85% in 1 hour
• Up to 25 dives in Dive Mode with backlight on
• Standby battery life up to 3 months
• Stores 900+ dive logs
• Audible and vibration alarms
• Resettable residual nitrogen time, dive settings, and logs
• Compact wrist-style design, 95g ± 5g
• Free DIVEROUT App for iOS users, no subscription needed
• DIVE STORY PRO App for Android users until DIVEROUT Android is released

Specifications

What’s Included

Who Is the CREST CR4 For?

The CR4 is well suited to:

• Beginner divers looking for a computer they can continue using as they gain experience
• Recreational scuba divers
• Divers who also enjoy Freediving
• Divers who prefer a rechargeable computer
• Travellers looking for a compact and versatile dive computer
• Divers who value both audible and vibration alerts

Why Choose the CREST CR4?

The CR4 offers a strong balance between simplicity and versatility. It is straightforward enough for newer divers while adding features such as Freediving mode, vibration alerts and rechargeable power that make it suitable for more regular use.

For divers who want more than the basic CR1 but do not yet need advanced features such as GPS, Multi-Gas or Trimix, the CR4 is a practical step up within the CREST range.

Compare CREST Dive Computers

Compare the CR1, CR4, CR-5L and CR-F to find the model that best matches your diving style, experience and future plans.

Learn More

• Explore our full dive computer collection to compare different models.
• Learn more about CREST diving products for recreational and freediving use