Device Information
Descent Mk1 Specifications
Battery type
Rechargeable, built-in lithium-ion battery
Descent Mk1 battery life
Up to 12 days in smartwatch mode
Water rating
10 ATM
1
Dive (EN 13319)
2
Decompression model
Bühlmann ZHL-16C
Depth sensor
Accurate from 0 m to 100 m (0 ft. to 328 ft.) complying with EN 13319
Resolution (m): 0.1 m until 99.9 m, 1 m at 100 m
Resolution (ft.): 1 ft.
Inspection interval
Inspect parts before each use for damage. Replace parts as needed.
3
Operating and storage temper
ature range
From -20º to 50ºC (from -4º to 122ºF)
Underwater operating tempera
ture range
From 0º to 40ºC (from 32º to 104ºF)
Charging temperature range
From 0° to 45°C (from 32° to 113°F)
Wireless frequency
ANT+ 2.4 GHz @ -1 dBm nominal, Bluetooth 2.4 GHz @ 0 dBm nominal, Wi‑Fi
2.4 GHz @ 12 dBm nominal
Battery Information
The actual battery life depends on the features enabled on your device, such as activity tracking, wrist-based
heart rate, smartphone notifications, GPS, internal sensors, and connected sensors.
Descent Mk1 Battery Life Mode
Up to 12 days
Smartwatch mode with activity tracking and 24/7 wrist-based heart rate moni
toring
Up to 20 hours
GPS mode with wrist-based heart rate
Up to 35 hours
UltraTrac GPS mode with gyro-based dead reckoning
Up to 40 hours
Dive mode
Data Management
NOTE: The device is not compatible with Windows
®
95, 98, Me, Windows NT
®
, and Mac
®
OS 10.3 and earlier.
1
The device withstands pressure equivalent to a depth of 100 m. For more information, go to
2
Designed to comply with CSN EN 13319.
3
Aside from normal wear and tear, performance is not affected by aging.
86
Device Information