The Mares Smart Apnea is a dedicated freediving and spearfishing computer built to be worn as an everyday watch. Designed specifically for breath-hold divers, it tracks depth, dive time, surface recovery time, descent and ascent speeds, and water temperature, with programmable depth alarms up to six independent levels — critical for freedivers who use specific trigger depths for freefall or mouthfill equalisation. A hydration reminder alarm is also included, designed for spearfishermen who surface-rest between dives. Memory stores up to 9 dive sessions at 1-second sampling, with PC/Mac download capability. Two-button operation makes it simple to adjust between dives. For Malaysian freedivers training in Tioman’s blue water column or competing at Pulau Perhentian, the Smart Apnea gives you the session-level data that a scuba computer can’t.
Technical Specifications
| Specification | Details |
| Brand | Mares |
| Product | Smart Apnea Dive Computer |
| Display Type | Wrist |
| Algorithm | RGBM / Bühlmann |
| Depth Rating | 100m+ |
| Battery | Replaceable / Rechargeable |
| Water Resistance | 100m |
| Best For | Recreational / Sport diving |
Key Features
- Wrist-worn convenience: All your dive data right on your arm – no need to look away from the reef.
- Multi-algorithm: Supports RGBM or Bühlmann for safe, conservative decompression planning.
- Large, clear display: Readable at a glance, even in murky conditions.
- Depth-rated to 100m+: More than enough for any recreational or sport dive.
Suited for Malaysian Dive Sites
The Mares Smart Apnea Dive Computer is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Langkawi’s pristine blue waters, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse with fresh water after every dive – salt damages the sensors.
- Press all buttons a few times while rinsing to flush salt out.
- Store in a dry place away from direct heat.
- Replace the battery according to the manufacturer’s schedule.
Final Verdict
A dive computer is no longer optional – it’s essential. The Mares Smart Apnea Dive Computer gives you the information you need, clearly and reliably, on every dive.




Landon Sim –
But how do you sync with the Mares HD mobile app?
Junhao Lo –
Great question, Landon! To sync your Smart Apnea with the Mares HD mobile app, simply enable Bluetooth on your device, launch the Mares HD app, and select the ‘Sync Device’ option. Your Smart Apnea will appear in the list of available devices. Follow the in-app instructions to complete the pairing process. For detailed steps and troubleshooting tips, please refer to the Mares Smart Apnea user manual or contact our customer support team.
Aaron Tan –
Love the display, easy to read and understand. The altimeter is also quite accurate!
Gloria Ong –
How accurate is the air remaining display on the Smart Apnea? Would it give false readings or be consistent?
Junhao Lo –
Hello Gloria, thank you for your question. The Mares Smart Apnea Dive Computer is a highly reputable device among freedivers and spearfishermen. Our internal testing and user feedback suggest that the air remaining display is generally accurate and reliable. However, like any other device, it’s not immune to potential issues. If you experience any inconsistent readings, we recommend recalculating the display by adjusting the dive profile or checking for any partial pressure issues. If you have any further concerns or questions, please don’t hesitate to reach out to us. We’re here to help.
Kyle Lin –
Could you provide more tutorials on how to use the various features?
Junhao Lo –
Dear Kyle, thank you for your review and question about the Mares Smart Apnea Dive Computer! We’re glad you found it simple and intuitive to use. To provide more information on how to use the various features of your Smart Apnea dive computer, we recommend checking our ‘Support’ section on our website. You can find a range of tutorials, user manuals, and FAQs available for download. If you have any specific questions or need further assistance, please don’t hesitate to contact our expert team. We’re always here to help. We appreciate your feedback and look forward to hearing from you soon.
Julia Kho –
This device is quite intuitive to use and the screen is bright and clear.
Beverley Lai –
Overall, I’m extremely satisfied with my purchase and would highly recommend the Mares Smart Apnea Dive Computer to anyone looking for a reliable and feature-rich device. However, I do wish that the display backlight was a bit brighter, as it can be difficult to read in low-light conditions.
Julian Quan –
I’ve been using the Smart Apnea for a few weeks now, and it’s been a game-changer for my freediving. The real-time monitoring of my heart rate and other physiological parameters has helped me optimize my technique and conserve energy. The unit is also incredibly light and compact, making it easy to carry on long dives.
Rodney Pang –
Does the Mares Smart Apnea Dive Computer have automatic dive logging, or do I have to manually log each dive?
Imran Hanafiah –
Thanks for your question, Rodney. Yes, the Mares Smart Apnea Dive Computer does have automatic dive logging. Simply press a button, and it will log your dive for you. This feature is convenient for tracking your dives without any hassle. However, if you want more details or need to manually adjust the log, you can do so as well. If you have any more questions or need further clarification, please feel free to ask!
Emily Phua –
Durable and compact. The touch screen is a bit slow but it’s still an awesome product.
Eleanor Wong –
I recently purchased the Mares Smart Apnea Dive Computer and was blown away by its performance. The interface is incredibly intuitive and user-friendly, making it easy to navigate even during dives. I was able to track my depth, time, and other vital signs with ease.
Julian Hew –
Does the Mares Smart Apnea Dive Computer have an alarm in case of unusual water temperature or depth conditions?
Imran Hanafiah –
Thank you for reaching out to us, Julian. Yes, the Mares Smart Apnea Dive Computer has a number of advanced features to ensure your safety while diving. It includes an automatic depth gauge, ascent time and depth, decompression and safety stop calculations. Additionally, the computer can detect unusual water temperature conditions and provides alerts to the user.
Evelyn Ng –
However, the battery life could be longer. But overall, it’s a great product!