SUUNTO D4F

computers

freediving

spearfishing

SUUNTO D4F 

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. 

General characteristics: 

Bezel material: Stainless steel
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    

Dive characteristics: 

Maximum operating depth (EN 13319): 100 m / 328 ft (EN 13319, ISO 6425)

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 rate: 1, 2, 5 s
Dive history: lifetime