D4

The Suunto D4 is an advanced wrist top dive computer with intelligent free diving features.Constructed from lightweight, composite material,the Suunto D4 features a modernized and sleek design. Weighing in at just 85 grams.
Air Mode,
the Suunto D4 is a refined dive computer with full decompression capability, extensive memory capabilities, profile recording, and dive-planning functionality. The logbook/profile memory can store up to 80 hours of dive data, with a lifetime dive history also recorded.
Using the Suunto Reduced Gradient Bubble Model (Suunto RGBM) algorithms for decompression calculations, the model can be adjusted using personal/altitude settings.
Nitrox Mode,
the Suunto D4 provides the same functionality as in the Air mode, but also enables the use of nitrox mixtures with an oxygen content of 21 -50% and an adjustable PO2 limit of 0.5–1.6 bar.
Freediving Mode,
the Suunto D4 provides the diver with accurate depth and time recordings as well as alarms. The Suunto D4 is programmed to capture the depth three times a second for an accurate maximum depth reading, while also recording the profile memory every second.
The dive time, in minutes and seconds, is clearly visible in the center of the display. The user- adjustable alarms can be set in advance to keep divers informed of their progress throughout their dive. The Suunto D4 not only serves as a functional diving watch, but also as a total timepiece. With dual time, calendar date, daily alarm, and stopwatch, it doesn’t need to be taken off when the dive is over.

	Continuous Decompression		PC Download
	Log Book Memory		RGBM
	Nitrox Compatible		Maximum Depth Alarm / Bottom Time Alarm
	Multiple Operating Modes