Shearwater Tern Dive Watch Computer
Original price was: $990.00.$899.00Current price is: $899.00. inc. GST
A compact dive-watch computer for Air, Nitrox and freediving.
- Read dive information on a 1.3-inch AMOLED display.
- Switch between scuba, gauge and freediving modes.
- Recharge wirelessly and use quick-release straps.
What you’re buying: Computer only. Tern does not support wireless air integration; choose Tern TX if you need that feature.
Need help choosing? Call our Hallam team during business hours.
SKU: 15301
Available on back-order
- Description
- Technical Specs
- Product Manual
- Shipping
- Returns & Exchanges
- Click & Collect
- Product questions
- Reviews (0)
Shearwater Tern watch-style dive computer
The Tern puts a 1.3-inch AMOLED screen, vibration alerts and wireless charging into a compact dive-watch format. It provides Air, Nitrox, Gauge and Freediving functions, with the Remora quick-release band system making strap changes practical.
- 1.3-inch AMOLED display.
- Air, Nitrox, three-gas Nitrox, Gauge and Freediving modes.
- Up to three open-circuit gases.
- Vibration alerts.
- Wireless rechargeable battery.
- Up to 20 hours at medium screen brightness.
- 120m depth rating.
- Remora quick-release band system.
The standard Tern does not include a digital compass or wireless air integration. Those features belong to the Tern TX. Configure the computer and gas settings according to its manual and your training.
More About This Model
Designed and built in Canada, The Tern & Tern TX are depth rated to 120 metres and tested to engineering EN standards for dive computer compliance. Tern and Tern TX support Air, Nitrox, 3 Gas Nitrox, Gauge, and Freedive modes.
Available with all-new Shearwater Remora™ quick connect bands, divers can easily switch between long and short straps, or the colour strap of their choice
How the Features Help
- Reading the display: Colour presentation separates key data such as depth, dive time and gas information. Set brightness and the available screen layout before entering the water so the information you use is easy to find.
- Navigation: The Tern has no integrated digital compass. Use a separate compass for heading information and practise taking and following bearings before diving.
- Cylinder-pressure monitoring: The Tern does not support wireless air integration. Monitor cylinder pressure with a separate pressure gauge as part of your dive setup.
- Power between dive days: A rechargeable battery avoids routine disposable-cell changes. Use the specified charging accessory and allow the instrument and electrical connections to dry before charging.
- Freediving records: The applicable freediving mode records breath-hold dive and surface information separately from scuba operation. Configure prompts for your training plan and follow the manual’s restrictions on changing between modes.
- 20 HOUR BATTERY LIFE
Who is this computer for, and when is an upgrade useful?
The Tern suits divers who prefer a compact AMOLED watch format with scuba and freediving modes. It does not support air integration or include a digital compass. The Tern TX adds those functions; compare it if you want wireless pressure monitoring and compass information on your wrist.
Setting up this computer
Compare the modes, gas capability, display and mounting arrangement with the diving you are trained to do. Check exactly what this listing includes, particularly transmitters, interfaces and charging accessories. Configure the computer using its own manual and confirm gases, alerts, units and battery status before diving. A depth rating describes an instrument limit and does not establish a suitable dive depth.
Gear Care and Maintenance
After every dive, rinse gently in fresh water to remove salt, chlorine and grit. Let residue soften by soaking only as the model’s manual permits, and operate buttons during rinsing only where instructed. Do not direct a high-pressure hose or compressed air at sensor openings, and never probe them with a tool.
Follow the care section of the exact Shearwater model manual for any cleaner; fresh water is the baseline cleaning method. Keep pressure-sensor openings clear by gentle rinsing, without scraping or high-pressure jets. Air dry fully in the shade before storage or charging.
Inspect the strap, attachment points, display and seals before use. Store in a cool, dry place away from direct sunlight, heaters and hot cars, with the screen protected from loose equipment. Follow the manufacturer’s battery-storage and servicing instructions.
Charge only with the compatible charger or adapter and the specified power source. Dry electrical contacts before connecting and follow the manual’s charging temperature and long-term battery-storage instructions. Rechargeable internal batteries are serviced only as the manufacturer permits.
Technical Specs
| Brand | Shearwater Dive Computers |
|---|---|
| Main model / configuration | Shearwater Tern Dive Watch Computer |
| Product type | Dive computer |
| Dive modes | Air; Nitrox; 3 Gas Nitrox; Gauge; Freedive |
| Depth rating | 120 m |
| Freediving mode | Yes |
| Nitrox / oxygen compatibility | Yes |
| Gas capacity | 3 |
| Battery | Internal rechargeable Li-ion |
| Computer style | Watch |
| Colour family | Black, Silver |
| Decompression / dive algorithm | Bühlmann ZHL-16C with Gradient Factors |
| Alarms | Haptic |
| Bluetooth | Yes |
| Rechargeable | Yes |
| Battery life | Up to 20 h at medium brightness; up to 6 months standby |
| Dive log capacity | 500 hours at 10-second sampling |
| Lens / screen glass | Toughened glass |
| Digital compass | No |
| Display technology | AMOLED |
| Air integration | No |
| Display size | 1.3 in diameter |
| Charging method | Wireless |
| Bezel material | 316 stainless steel |
| Product weight | 100 g |
| Strap material | 22 mm quick-connect strap |
| Dimensions | 50 mm diameter × 16 mm thick |
| Display resolution | 360 × 360 |
| Battery capacity | Approximately 1.33 Wh |
Additional specifications
| DIVELOG | 500 HOURS |
|---|---|
| Depth rating | 120M |
| Operating temperature | -10 °C to +50 °C |
| Surface pressure range | 500–1,040 mbar |
| Automatic scuba dive detection | Starts at 1.6 m; ends at 0.9 m; thresholds adjustable in Freedive mode |
| Recommended charging temperature | +15 °C to +25 °C |
| Approximate charging time | 1.5 hours with Quick Charge enabled; 3–4 hours without |
| Depth measurement accuracy | Meets EN 13319 |
| Display | 1.3-inch AMOLED |
| Modes | Air, Nitrox, three-gas Nitrox, Gauge and Freediving |
| Gas capability | Up to three open-circuit gases |
| Air integration | Not supported on the standard Tern |
| Compass | Not fitted on the standard Tern |
| Battery | Rechargeable; wireless charging |
| Rated battery life | Up to 20 hours at medium brightness |
| Band system | Remora quick release |
Based on Shearwater Dive Computers product information.
Official manufacturer instructions for this product.
Tern Manual - English
Read the manual before use. For firmware updates, follow the manufacturer support link. Our team can help during business hours.
In-stock orders placed before 12 noon Melbourne time on weekdays are usually dispatched the same day once payment is confirmed. This excludes public holidays, pre-orders, backorders, special orders and custom orders. Dispatch times can vary. Delivery time depends on the carrier and your location.
Standard mainland Australian shipping is $20. Click & Collect from our Hallam store is free once your order is ready.
- Large or bulky gear: additional freight charges apply on top of standard shipping: large dive bags $30; long freediving fins $15; long spearguns $20. Scuba tank freight is shown at checkout.
- Rural, remote & offshore: rural means anywhere outside metropolitan areas. Carrier availability and additional charges may apply, including for island and territory destinations. Our team will contact you if an extra freight quote is needed.
The available delivery rate for your order is shown at checkout.
Need your gear urgently? You are welcome to arrange your own same-day courier or Uber pickup from Hallam. Call 03 9702 3694 before booking so we can confirm payment, that your order is packed and ready, and a collection time. Tell us who will collect and give your driver the order number. You arrange and pay the courier directly; delivery timing depends on the provider.
Contact us within 30 days of delivery to request a refund, exchange or optional store credit on eligible unused goods within Australia. Refunds go to the original payment method. Keep goods clean and undamaged with tags, original packaging and all accessories. No restocking fee applies to eligible returns meeting these conditions.
For change-of-mind returns and size exchanges, you pay return postage and replacement shipping. Original delivery charges are not refunded. Water-tested goods, clearly marked clearance items and genuinely custom-made or personalised items are excluded from change-of-mind returns. Ordinary discounted goods remain eligible.
For product problems, please call 03 9702 3694 before returning an item so we can help and explain the next steps.
Still unsure which size to choose?
Call our experienced dive instructors on 03 9702 3694 before ordering. Have your measurements and preferred product ready so we can help you choose the most suitable size. Fit varies between brands and models.
FREE CLICK & COLLECT
Usually ready same day*
Select local pickup at checkout. We will email you when your order is ready. Please wait for your ready-to-collect confirmation before visiting, then bring your confirmation email and photo ID.
Need your gear urgently? You can arrange your own same-day courier or Uber pickup. Call 03 9702 3694 before booking so we can confirm payment, that your order is packed and ready, and a collection time. Tell us who will collect and give your driver the order number. You arrange and pay the courier directly; delivery timing depends on the provider.
Collect from our Hallam store
Factory 4 / 56–60 Hallam South Rd
Hallam VIC 3803
*For items in stock at our Hallam store during opening hours, subject to order processing. Available-to-order and special-order items take longer. Collection is unavailable while the store is closed.
Does Tern support a wireless transmitter?
No. Tern does not support wireless air integration. Tern TX adds that feature and a digital compass.
How do I charge it?
Tern has a rechargeable battery and charges wirelessly. Follow the Product Manual for charging and care.
Can I use it for freediving?
Tern has a dedicated freediving mode as well as Air, Nitrox and Gauge modes. Choose settings appropriate to your training and activity.
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