Description
Atmos MISSION 3 follows the principle of “Make the dive simple.” It offers practical features for scuba and freedivers, including 130-meter depth capability, vibration, and sound alerts. Patented features such as GPS dive spot navigation and freedive safety stopwatch enhance its functionality. It also includes apnea training tools, multi-band GPS, a digital compass, and a bright 1.4″ full-color AMOLED display. Paired with the handy ATMOS logbook app, MISSION3 is the ultimate companion for divers of all levels.
Highlights
- Bright 1.4″ full-colour AMOLED display (454 x 454) with big digits
- Built to go deep: 130m water rating (EN13319) behind an 8H-hardness MICA glass lens
- Featherweight at 83g with a sleek, large-display design
- Scuba modes: Air, Nitrox, Multi-gas (2 gases, O2 up to 50%), and Gauge
- Hear, see, and feel the alarms: sound, visual, and multiple vibration patterns
- GPS dive spot navigation: mark entry and exit points and create your own spots (surface only)
- 3-axis dive compass with heading lock, dive stopwatch, and dive planner
- Freedive and pool modes with safety stopwatch, STA, and CO2/O2 apnea training tables
- Daily smart features: notifications, tide data, weather, steps, calories, and sleep (requires a paired iPhone or Android smartphone)
- ATMOS app for iOS and Android: sync dive logs, edit dive sites, manage certifications
- Quick release strap, compatible with most 26mm width bands
Specifications
| Water rating | 130m (EN13319) |
| Size | 50.0 x 50.0 x 14.8 mm |
| Weight | 83g (with silicone watch band) |
| Lens material | MICA glass (8H) |
| Display | 1.4″ full color AMOLED, 454 x 454 pixels |
| Bezel and button material | Stainless steel 316L |
| Case material | Fiber-reinforced polymer |
| Strap | Hypoallergenic silicone, width 26mm, quick release |
| Battery | Lithium ion, factory replaceable |
| Battery life | Watch mode up to 12 days; smartwatch mode up to 9 days; dive mode up to 14 hours (low brightness) |
| Charging | USB Type-C / 5V-9V DC / 3A |
| Languages | EN, KO, JA, ZH-CN, ZH-TW |
| Units | Metric and imperial |
| Memory | 1000 dive logs |
| Firmware | Upgradeable (USB Type-C) |
| Operating temperature | -20°C to 50°C (±2°C) |
| Charging temperature | 0°C to 45°C (±2°C) |
Diving specs
| Single gas mode | Air, Nitrox O2 up to 40% |
| Multi-gas mode | 2 gases, Air, Nitrox O2 up to 50% |
| Gauge mode | Yes (bottom timer) |
| Decompression model | Bühlmann ZHL-16c (GF configurable) |
| PO2 | Up to 2.0 |
| Auto start dive | Yes |
| Safety stop | Yes |
| Descent / ascent rate indicator | Yes |
| Dive planner | Yes |
| Custom dive data screens | Yes |
| Reset residual tissue loading | Yes |
| Alarm methods | Visual, vibration, and audible buzzer |
| Scuba alerts | Fast ascent, safety stop, low NDL, deco stop, deco ceiling violated, dive time, depth, MOD, CNS, surface interval, check SPG reminder, low battery |
| End dive time | Configurable, 20s to 10 min |
| 3-axis dive compass | Yes, with lock heading |
| Dive stopwatch | Yes |
| Entry / exit GPS | Yes (surface only) |
| GPS dive spot navigation | Yes (surface only) |
| No fly time | Yes |
| Surface interval time | Yes |
| Freedive modes | Freedive, pool, STA |
| Apnea training | CO2/O2 tables, custom tables, dynamic training |
| Freedive alerts | Dive time, descent/ascent depth (10 sets each), freefall depth, surface time, hydration, low battery |
| Freedive safety stopwatch | Yes |
| Digital dive logbook | Yes (ATMOS app) |
What’s in the box
- MISSION3 dive computer
- Standard silicone band (width 26mm, length 135-230mm)
- Charging cable
- Screen protector (2 pcs)
- Quick start guide with warranty card
- A pair of strap pins







