Suunto M4 - 17 Specifications; Technical Specifications

17 SPECIFICATIONS
17.1 Technical specifications
General
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Operating temperature: -10° C to +50° C / +14° F to +122° F
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Storage temperature: -30° C to +60° C / -22° F to +140° F
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Weight (device): max. 40 g / 1.41 oz
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Weight (HR belt): 42 g / 1.48 oz
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Water resistance (device): 30 m / 100 ft (ISO 2281)
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Water resistance (HR belt): 20 m / 66 ft (ISO 2281)
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Transmission frequency (belt): 5.3 kHz inductive, gym equipment and 2.465
GHz Suunto-ANT compatible
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Transmission range: up to 10 m / 30 ft
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User-replaceable battery (device / HR belt): 3V CR2032
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Battery life (device / HR belt): approximately 1 year in normal use (2.5 h /
week exercise with HR)
Log recorder/stopwatch
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Maximum log time: 9 hours 59 minutes and 59 seconds
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Resolution: The first 9.9 seconds are shown with 0.1 second accuracy. After
10 seconds the duration is shown with 1 second accuracy.
Totals
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Maximum number of logs in device memory: 80
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Total exercise time: 0 - 9999 h (After 9999 h back to 0 h)
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Last 4 weeks kcal and duration: 0 - 99999 kcal, duration 00:01 - 99:59
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