Underwater Drone Mini S Submarine Drone 4K EIS Camera - Stable 330ft

In this review of the Underwater Drone Mini S, the bottom line is straightforward: it is aimed at divers, content creators and field technicians who need a compact, single-operator ROV that records stable 4K footage deep underwater. The Mini S stands out because of its 4K EIS camera with 1/2.3 SONY CMOS and anti-shake imaging, which produces clearer, more stable video than typical compact underwater cameras while also delivering useful telemetry like depth and temperature during operations.

Key Features

• 4K EIS Imaging: The 4K HD video and 12 MP photo capability with electronic image stabilization helps capture vivid, usable footage even when the drone is moving underwater.
• Low-light optics: The F1.8 lens paired with two 1200-lumen LEDs brings out detail in dim environments and makes close inspections and night dives practical.
• Long operational time: Two 4800 mAh batteries provide up to four hours of continuous use, reducing interruptions for long inspections or exploration sessions.
• Deep and reachable: Rated to dive to 330 ft with a matching horizontal control radius, the Mini S is suitable for most recreational and many light industrial underwater tasks.
• Portable and quick to deploy: At roughly 5.5 to 6 lbs and with three-minute setup, it is easy for one person to carry and launch from shore or boat.
• Stable wired control: The direct-connect remote controller minimizes signal loss and records telemetry such as depth and temperature while supporting HDMI output and live streaming.

Who It's For

The Mini S is well suited to underwater photographers and videographers who want higher-quality stabilized footage than usual handheld housings provide, and to scientists or safety inspectors who need a portable ROV to document submerged structures, marine life, or anomalies at depth. It also fits solo operators who value rapid deployment and a light package for repeated field use.

Those who need extremely high-speed surveying, very long untethered range, or heavy industrial tooling should look elsewhere; the Mini S targets portability, imaging quality and ease of use rather than heavy payloads or extended unmanned autonomy.

Pros & Cons

Pros

• High-resolution 4K video and 12 MP photos with EIS produce steady, detailed footage suitable for editing and sharing.
• Two bright 1200-lumen LEDs and F1.8 glass provide better low-light performance than many compact ROVs.
• Long runtime with two batteries offers up to four hours between charges, useful for lengthy dives or inspections.
• Lightweight and quick to deploy for single-person fieldwork, and supports accessories such as grabbers and action cams.

Cons

• Wired remote control limits free-roaming untethered operation compared with wireless ROVs, which may matter in some survey scenarios.
• Storage is limited onboard to 64 GB included, requiring optional expansion up to 512 GB for very large projects.

Specifications

Camera	4K EIS, 12 MP, 1/2.3 SONY CMOS, F1.8
Depth Rating	330 ft
Max Speed	4 knots
Battery	Two 4800 mAh (up to 4 hours runtime)
Weight	About 5.5 - 6 lbs
Storage	Includes 64 GB SD, supports up to 512 GB
Lights	2 x 1200 lumen LEDs

Our Verdict

The Mini S is a compact, well-rounded underwater drone that delivers stabilized 4K imagery, long battery life and reliable wired control in a package a single person can carry and deploy quickly. It represents good value for photographers, researchers and light industrial users who need clear footage and dependable telemetry to 330 ft without the complexity of larger ROV systems.

Frequently Asked Questions

How long does the drone run on a full charge?
The Mini S provides around 120-180 minutes in normal conditions and up to 240 minutes in low-flow water with its two 4800 mAh batteries.

Can I expand onboard storage?
Yes, the unit ships with a 64 GB SD card and supports cards up to 512 GB for extended recording.

Does the controller support live output to other screens?
Yes, the wired controller supports HDMI output, live streaming through the app, and records depth and temperature data during dives.