Suunto D4f is a light yet robust freedive computer, that makes underwater sports enjoyable. When diving, the D4f displays your present and maximum depth and calculates dive time and surface intervals for you, allowing you to fully concentrate on exploring the underwater world. Use the apnea timer to improve your breathing technique. After the dive you can browse the details of your dive from the logbook. The light-weight case with stainless steel bezel and mineral crystal glass make Suunto D4f not only a trusted tool when exploring the depths, but also looks good wearing day to day.
The Suunto D4f Black comes with a comfortable elastomer strap. The USB cable for uploading your dives to DM5 and Suunto Movescount is sold separately.
Technical Specifications
| Bezel material: | Stainless steel |
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| Glass material: | Mineral crystal |
| Case material: | Composite |
| Strap material: | Elastomer |
| Weight | 86 g / 3.03 oz |
| Water resistance | 100 m (ISO 6425, EN 13319) |
| Battery life 100 dives/year | 1.5 years |
| Battery type | CR 2450 |
| Time, date | Yes |
| Alarm clock | 1 daily alarm |
| Dual time | Yes |
| Stopwatch timer | Yes |
| Languages | EN |
| Backlight | electro-luminescent |
| Configurable backlight | duration: off, 5, 10, 20, 30, 60 s |
| Display type | matrix |
| Display resolution | 49 x 22 |
| Battery indicator | low battery indicator |
| Metric and imperial units | Yes |
| In time mode | 2 years |
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| Data transfer | USB cable |
|---|---|
| Connectivity (between devices) | inductive |
| Compatible with DM5 | Yes |
| Operating temperature | 0° C to +40° C / +32° F to +104° F |
|---|---|
| Storage temperature | -20 ° C to +50 ° C / -4° F to +122° F |
Diving Functions
| Maximum operating depth (EN 13319) | 100 m / 328 ft (EN 13319, ISO 6425) |
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| Freedive | 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 (20 s sampling rate) |
| Logbook bookmarks | Yes |
| Logbook sampling rates | 1, 2, 5 s |
| Dive history | lifetime |
| Apnea timer (O2/CO2 tables) | Yes |
|---|---|
| Freedive number | Yes |
| Freedive day history | Yes |
| Freedive total history | lifetime |
| Depth notify | yes (5) |
| Surface time notify | Yes |
| Depth alarm | Yes |
| Dive time alarm | Yes |
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