The Swii is designed for surface use at 0–1 m depth. The sealing is rated to 5 m.

The Swii has two speed modes. At a typical user weight of 40 kg: high speed is 1.0 m/s (2.2 mph) and low speed is 0.6 m/s (1.3 mph). Speed can be adjusted via the SublueGo App and the selected gear is retained after shutdown.

The Swii body is made from EVA — an eco-friendly, shock-absorbing, moisture-resistant foam material that is safe for skin contact.

After use, place the Swii in clean water and activate the 'Self-Clean' function in the SublueGo App. The propellers will run automatically to flush out any debris.

The recommended operating temperature is -5°C to 40°C (23°F to 104°F). Do not use above 40°C (104°F).

Turn on the master switch — the breathing light indicates battery level. By default: blinking green = above 60%, yellow = above 30%, red = above 10%, solid red = below 10%.

Continuous use time: 98 Wh battery — approximately 17 minutes. 158 Wh battery — approximately 25 minutes.

The Swii has been rigorously tested and operates at no more than 80 dB. Unusual noise may indicate improper maintenance or debris in the propellers.

Reduced thrust may be caused by a low battery, debris caught in the propellers, or excessive load weight.

Check for foreign objects in the propellers. If the issue persists, contact Sublue for technical support.

Yes. The motor stops automatically via overload protection if the propeller is obstructed.

The Swii provides approximately 6 kg of buoyancy.

Remove the battery and open the thruster front cover. Take out the propeller and clear any debris. For further assistance, contact Sublue or your authorized dealer.

Battery life depends on usage conditions and user weight. Under typical conditions: 98 Wh battery — approximately 30 minutes. 158 Wh battery — approximately 45 minutes.

Store the battery at 0°C–40°C (32°F–104°F) and 60±25% RH, at a charge level of 30–50%, in a cool, well-ventilated place. Charge at least once every three months. Do not charge below 0°C (32°F).

Green staining may result from moisture ingress causing copper oxidation. Contact your dealer for support. As a temporary measure, apply a small amount of petroleum jelly (Vaseline) to the copper contacts.

Battery type: Lithium-ion. Rated capacity: 6,600 mAh (98 Wh) / 10,670 mAh (158 Wh). Rated voltage: 14.8 V. Charging voltage: 16.8 V. Weight: approximately 750 g (98 Wh) / 1,100 g (158 Wh). Dimensions: L 171 mm × W 58 mm × H 60 mm.

No, corrosion is not normal. Follow the maintenance instructions in the user manual to prevent this. If corrosion occurs, clean with a dry cloth and contact Sublue or your dealer if the issue persists.

Battery swelling can result from overcharging or over-discharging. Stop use immediately and contact your dealer or Sublue to arrange a replacement. Note: The battery is a consumable item and is not covered under warranty.

Spare batteries are available through the Sublue official website or your local authorized dealer.

Yes. Some warmth during use is normal for lithium-ion batteries. If the battery becomes excessively hot, contact your dealer or Sublue.

The battery is a lithium-ion type and its capacity reduces significantly in low temperatures. Operate within 0°C–40°C (32°F–104°F).

The battery capacity is 6600mAh & 10670mAh.

Input: AC 100–240 V, 50/60 Hz, 1.8 A. Output: DC 16.8 V.

Always use the dedicated charger supplied with the Swii. Using third-party chargers may damage the battery.

Bearings are durable under normal use. After each use — especially in salt water — rinse the Swii thoroughly with fresh water to prevent bearing damage from salt crystals or debris.

Outer packaging dimensions: 67.8 × 44.5 × 19.2 cm. Packaged weight: 6.5 kg.

The Swii does not have a built-in camera.

No. The Swii uses a sealed underwater design that prevents electrical leakage.

The Swii is suitable for use in open water environments such as swimming pools, lakes, and calm coastal waters.

Store the Swii body and battery separately: 1) Store in a well-ventilated environment at 0°C–50°C (32°F–122°F). The battery has separate storage requirements — see battery storage guidelines. 2) Keep away from direct sunlight. 3) Avoid poor ventilation or humidity above 65%. 4) Keep away from high temperatures, open flames, and out of reach of children. 5) Keep away from strong magnetic fields. 6) To prevent mould, run the device for approximately 10 seconds once a month.

The Swii weighs approximately 5 kg (including battery), making it suitable for travel. The battery capacity is 158 Wh, which requires prior airline approval under ICAO regulations. A maximum of two batteries per person may be carried on board and cannot be checked. Damaged or leaking batteries cannot be transported.

After Swii used in sea water or fresh water, please clean it as the following steps within 30min:
1.Fully immerse the Swii in a container filled with water for 20 minutes.
Note:
①Do not add laundry detergent, abluent, etc. in the water.
②When Swii is immersed in water, some bubbles will be discharged from the body holes. This is not a malfunction.
2. Press the switch with both hands to make Swii run in the semi-air for 2 seconds, repeated 5 times, or soak in clear water for 20 minutes.
Note:
①To prevent body splashing during operation, push the propeller nozzle towards the bottom of the container.
②The Swii has great thrust in water, please lift the machine slightly out of the water for better clean and control.
3.Shake and clean the body of Swii to remove the objects attached on it.
4, Wipe the water off with a clean, soft cloth, ensuring the water around the body and battery wiped clean. Then takeout the battery, put it and body separately in a well-ventilated place. Do not use a hair dryer for drying.