Suunto D4f

The Suunto D4f Black can be defined as a lightweight yet rugged free dive computer that lets you enjoy underwater sports. That would be an accurate definition, but you'll know what this model can do when you dive and try it out... and we're telling you, it's a lot! and we're telling you it's a lot!

During the dive, the D4f Black displays your current and maximum depth and also calculates dive time and resurfacing intervals. This makes it easy for you to stay calm, do your own thing, and fully concentrate on exploring the underwater world.

You can also use the apnea timer to improve your breathing technique and review the details in the logbook after the dive.

But we can not forget its attractive 'look' either, and is that the lightweight case with stainless steel bezel and mineral crystal glass make the Suunto D4f Black both a reliable tool for exploring the depths as an object to wear throughout your day to day.

Moreover, the Suunto D4f Black comes with a comfortable elastomer strap, while the USB cable for transferring your dives to DM5 and Suunto Movescount is sold separately.

Details to consider for Suunto D4f Black

• Ideal for freediving, snorkeling, and spearfishing.
• Suunto D4f Black features a freediving timer
• It is waterproof to 100 m (328 ft).
• Its light weight... you will hardly notice it! It weighs 86 g / 3.03 oz.
• Free dive mode
• Innovative free dive timer and stopwatch
• Battery life in Time mode is 2 years.
• Battery life for 100 dives/year is 15 years.
• The Suunto D4f Black features an easy-to-read matrix display, mineral crystal glass and stainless steel bezel, as well as upgradeable firmware.
• On the other hand, its display resolution is 49 x 22.

Physical specifications

• Operating Temperature: 0° C to +40° C to +40° C/32° F to +104° F
• Storage Temperature: -20° C to +50° C to +50° C / -4° F to +122° F
• Dive Functions
• Maximum operating depth: 100 m (300 ft)
• Free dive: yes
• Dive time: 0 to 999 min
• Surface time: 0 to 99 h 59 min
• No-fly time: yes
• Ascent time display 0-199 min (- - after 199)
• Timer: yes
• Logbook memory: ~140 h (sampling rate 20 s)
• Log reference points: yes
• Sampling rates for logbook: 1, 2, 5 s
• Dive history: lifetime.

Free dive

• Free dive timer (O2/CO2 tables): yes
• Number of free dives: yes
• Free dive day history: yes
• Total free dive history: lifetime
• Report depth: yes
• Report surface time: yes
• Depth alarm: yes
• Dive time alarm: yes

Weather

• Temperature: yes
• Temperature display range: -20° C to +50° C (+/- 2C)/ -9° C to +122° F (+/- 3.6° F)
• Temperature resolution: 1° C/15.

Suunto D4f Black has graphical logs and detailed dive data with your PC/Mac using Suunto DM5 software (as mentioned above, USB cable sold separately).

Suunto D4f Black comes with black elastomer strap, anti-scratch protectors2 pcs.), safety booklet, quick reference guide, dive legal information booklet with warranty information, and Suunto logo sticker.