Dive computer wrist

A wrist dive computer is an essential device for monitoring depth, bottom time, and decompression limits in real time.

About this subject

A wrist dive computer is an essential electronic device used by scuba divers to enhance safety during dives. It continuously calculates the dive profile based on depth and time, providing real-time alerts about ascent rate, decompression stops, and maximum bottom time. Unlike traditional dive tables, the dive computer adapts to changes in depth instantly, significantly reducing the risk of decompression sickness.

Modern wrist-mounted computers feature advanced capabilities such as support for multiple gas mixes (nitrox, trimix), air integration for tank pressure monitoring, and decompression algorithms like Bühlmann ZHL-16C or RGBM. The wrist form factor is highly practical, keeping the display visible at all times while leaving hands free. Leading brands include Suunto, Shearwater, and Garmin, offering high-resolution screens and calibrated depth and temperature sensors.

In both recreational and technical diving, the dive computer has become a mandatory safety item. It automatically logs each dive's profile, generating detailed records that can be uploaded to analysis software. Battery life ranges from a few hours to several days depending on usage. Many models also include freediving and apnea modes, increasing their versatility.

Frequently Asked Questions

What is a wrist dive computer?

It is an electronic device worn on the wrist that monitors depth, dive time, and calculates decompression limits in real time, enhancing diver safety.

How does a dive computer help prevent decompression sickness?

It continuously tracks your depth and time profile, alerting you to fast ascents and mandatory decompression stops, thereby preventing excessive nitrogen bubble formation.

What are the main algorithms used in dive computers?

The most common are Bühlmann ZHL-16C (adapted for multi-gas diving) and RGBM (Reduced Gradient Bubble Model), which account for tissue saturation and desaturation.