Garmin Descent G1
Dive Computer
Brand
Model
- Descent G1
Gases
How many gases does the dive computer support?
- 12
Rebreather support
- Yes
Maximum operating depth (MOD)
- 100 m
Overview
General information diving related
Maximum operating depth (MOD)
- 100 m
- 328.08 ft (converted)
Water resistance
The level to which the device can withstand water pressure without leaking or getting damaged.
- 100 m
- 328.08 ft (converted)
Gases
The number of gases the dive computer support
- 12
Nitrox support
- Yes
Trimix support
Gas mixture containing oxygen, nitrogen, and helium, aimed at reducing risks in deep technical dives.
- Yes
Fresh and sea water support
- Yes
Gauge mode
- Yes
Dive planning essentials
Residual nitrox reset
Allows divers to clear memory of past nitrogen and oxygen levels to safely switch between different nitrox mixes for new dives
- Yes
Deco dive planner
A "Deco" (Decompression) Dive Planner is a tool for scuba divers to plan dives exceeding the no-decompression limit (NDL), necessitating calculated stops during ascent for safe nitrogen release from the body.
- Yes
No fly time indicator
The necessary surface interval a diver must wait before flying after a dive, calculated to prevent decompression sickness by allowing excess nitrogen to safely dissipate from the body.
- Yes
Safety stop
- Yes
Deep stop
- Yes
Dive time maximum
Surface time maximum
Ascent rate indicator
- Yes
Planner mode
Allows users to simulate the decompression of multiple dives and set surface intervals between them
- Yes
Altitude selection
The altitude selection in a dive computer adjusts the decompression model to account for reduced atmospheric pressure at higher elevations, ensuring safer dive planning and decompression calculations.
- Yes
PO2 setting
- Up to 2.0
Gas time remaining
- Yes
Gas consumption rate
- Yes
Customizable conservatism
- Yes
Air integration
Air integration
Tank pressure transmiter support
- Yes
Tank pressure transmitter
Battery
Battery description
Battery duration
The number of dives or total diving duration a battery can sustain before recharge or replacement.
- Up to 25 hours
- Up to 26 hours
- Up to 56 hours
- Up to 21 days
- Up to 48 days
- Up to 27 days
Rechargeable battery
- Yes
Battery type
- Rechargeable lithium-ion battery
Low battery indicator
- Yes
Battery lifespan
The duration a battery efficiently functions before requiring replacement due to diminished capacity.
- Not applicable
Dive alarms and Notifications
Maximum depth alarm
- Yes
Tank pressure alarm
- Yes
Low pO2 (hypoxic) alarm
- Yes
High pO2 (hyperoxic) alarm
- Yes
Too fast ascent alarm
- Yes
Decompression ceiling violation alarm
- Yes
Deepstop violation alarm
- Yes
CNS alarm
- Yes
OTU/OLF alarm
(Oxygen Tolerance Units / Oxygen Limit Fraction)
- Yes
Switch gas suggestion notification
- Yes
Diluent switched automatically notification
Diluent low pO2 alarm
- Yes
Diluent high pO2 notification
Vibration alarm
- Yes
Design and Materials
Bezel material
- Fiber-reinforced polymer
Strap material
- Silicone
Glass material
- Sapphire crystal
Case material
- Fiber-reinforced polymer
Colors
- Slate Gray
- Powder Gray
Interchangeable straps
- Yes
Time and Clock
Dual time
- Yes
Timer
- Yes
Alarm clock
- Yes
Chronometer/Stopwatch
- Yes
Displays date
- Yes
Displays time
- Yes
GPS time sync
Time is set according to GPS location
- Yes
Technical information
Weight
- 61 g
- 2.15 oz (converted)
Units
Imperial or metric
- Metric and imperial
Measurements
- 45.5 x 45.5 x 15.2 mm
- 1.79 x 1.79 x 0.6 in (converted)
Languages
Algorithm
Decompression model
- Bühlmann ZHL-16c with gradient factors
Dimensions
Dive computer dimensions
Display information
Display resolution
- 176 x 176 px
Display type
- Monochrome
- Sunlight-visible
- Transflective memory-in-pixel (MIP)
Color display
- No
Backlight
- Yes
Display diameter
- 23 mm
- 0.91 in (converted)
Customizable display
- Yes
Number of buttons
- 5
Connectivity & Software
Available connectivity ports, data transfer
Bluetooth support
- Yes
USB data transfer
Hoseless tank data
- Yes
Updatable software
- Yes
Mobile app compatible
- Yes
Mobile app support features
- Garmin Express™ Software
Mobile notifications
- Yes
Data transfer
- Via bluetooth
PC/MAC application compatible
- Yes
Memory
GB/MB
- 32 MB
Rebreather
Rebreather support
- Yes
Maximum diluents
- 1
Bailout
- Yes
High/low setpoints
- Yes
Custom setpoint
- Yes
Manual/automatic setpoint switching
- Yes
Compass & Navigation
Digital compass
- Yes
Needle type
- 3 Axis
Direction scale
- Degrees
Tilt compensation
Compass resolution
Compass accuracy
Globally balanced
Declination correction
GPS Navigation
- Yes
Freediving information
Freedive mode
- Yes
Apnea timer (O2/CO2 tables)
- Yes
Shows number of dives
- Yes
Freedive day history
- Yes
Freedive total history
- Yes
Logbook
Logbook memory
Memory in hours/dives
Scubadive sampling rate for logbook
Freedive sampling rate for logbook
Temperature
Temperature resolution
Temperature display
- Yes
Operating temperature
- 0 to 40 C
- 32 to 104 F (converted)
- 32 to 140 F
- 0 to 60 C (converted)
Storage temperature
- -20 to 60 C
- -4 to 140 F (converted)
- -4 to 140 F
- -20 to 60 C (converted)
Recommended charging temperature
- 0 to 45 C
- 32 to 113 F (converted)
- 32 to 113 F
- 0 to 45 C (converted)
Model Evolution
Related products
Same item in a set or different variant
Predecessor
Earlier model
- Not applicable
Successor
Newer model that offers advancements in technology, features, and performance over the previous version.
Production
Years manufactured
- 2022 - present
Related products
Same item in a set or different variant
Successor
Newer model that offers advancements in technology, features, and performance over the previous version.
Related items
Accessories
Additional items or equipment that enhance its functionality, protection, or user experience, such as screen guards, mounting options, and interface cables for data transfer.
Various
Sunrise/sunset times
- Yes
Heart rate
- Yes
Weather forecast
- Yes
Entry and exit location automatic save
- Yes
Surface diver status widget
- Yes
Tide information
- Yes
Description
Decription provided by the manufacturer (facts, technical description)
- DIVE MODES Get multiple dive modes for single and multiple gas dives (including nitrox and trimix), gauge, apnea, apnea hunt and closed-circuit rebreather. SURFACE MULTI-GNSS Track your entry and exi... More
Manual
Product No
Product number
- 010-02604-00
- 010-02604-01
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