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Review · Chasing

Chasing Gladius Mini S: a closer look

4K camera, 100 metres of depth and up to four hours of runtime: the Gladius Mini S is one of the most popular hobby drones. We look at who it is worth it for.

7 min readAs of October 2026By Kenny, Editor
Kenny, editor at UnterwasserpilotKennyEditor · Unterwasserpilot
Chasing Gladius Mini S
Image: Chasing
Budget pickGrade2.5good

4th place in our ranking. The cheapest route to 4K and a 100 metre depth rating. Conventional controls, a solid package, and a gripper claw in the “Flash” package.

Pros
  • Affordable for 4K and 100 m
  • Up to 4 h runtime
  • Slow motion in Full HD
  • Remote control with HDMI
Cons
  • Less light
  • No movement in all directions
  • Hard to get in Switzerland
from approx. €1,260Price range at retailers · Switzerland: currently hard to get

Rating in detail

Camera & image (30%)2.3
Lighting (15%)3.4
Depth & cable (15%)1.5
Battery & runtime (15%)2.5
Movement & control (15%)3.0
Features & accessories (10%)2.5

The grades are based on the manufacturer's figures and our rating scheme. We will add our own hands-on test in the water later.

Introduction

Chasing, from China, is one of the best-known makers of underwater drones. The Gladius Mini S sits between the small beginner drone, the Dory, and the larger M2 series. It is aimed at hobby pilots who want more than a few metres in a swimming lake but do not need professional kit. The drone moves like a small submarine and can tilt its camera 45 degrees up and down.

Chasing remote control with built-in screen
Remote control with a screen from the Chasing accessories range · Image: Chasing

Technical specifications

Depth ratingup to 100 m
Cable100 m or 200 m
CameraSony 1/2.3" sensor, F2.8, 150° field of view, electronic image stabilisation
Video4K at 25/30 frames per second, Full HD up to 120 frames per second
Tilt±45°
Lighting2 × 1,200 lumens
Battery2 × 4,800 mAh, up to 4 h runtime, charging time approx. 3.5 h
Weight2.7 kg, cable reel 1.8 kg (100 m)
Remote controlwith Wi-Fi and HDMI output, holder for devices up to 10 inches
AccessoriesGripper claw and backpack in the “Flash” package, action cam mount, 64 GB memory card
Price, Germanyapprox. €1,260–1,500 (100 m), approx. €1,700 (200 m)
Price, Austriaapprox. €1,510 (100 m)
Price, Switzerlandcurrently unavailable from large retailers

Chasing gives no official figures for top speed or the number of thrusters.

Chasing Gladius Mini SChasing cable reelChasing carry case
Gladius Mini S, cable reel and carry case · Images: Chasing

Pros and cons

What speaks for it
  • 4K camera with image stabilisation and slow motion in Full HD
  • 100 m depth, enough for almost every hobby outing
  • Up to 4 hours of runtime
  • Remote control with HDMI for a large monitor
  • Cheapest way to 4K and 100 m at Chasing
What speaks against it
  • Moves conventionally, no sideways hovering in all directions
  • Less light than the FIFISH V-EVO
  • No official figures for speed and current
  • Currently hard to get in Switzerland

Use cases for hobby pilots

  • Exploring Alpine lakes: With a 100 metre cable you can reach greater depths even on steep shores, for example sunken trees or rock formations.
  • Boat owners: Check anchor, chain and hull quickly. The camera tilt helps you look under the hull.
  • Anglers: Observe fish stocks and the structure of the bottom before you cast your rod.
  • Holidays by the sea: 4K videos of seagrass meadows and shoals of fish that you can show later on the TV.

In video

The Gladius Mini S in CHASING's official videos:

Official video from CHASING (YouTube)
Official video from CHASING (YouTube)

Verdict

Our buying recommendation

The Gladius Mini S is the right choice if you want 4K and 100 metres of depth for as little money as possible. It covers almost everything hobby pilots in German-speaking countries have in mind, and the “Flash” package even comes with the gripper claw.

If you mainly want to film and value plenty of light and free movement, you should also take a look at the FIFISH V-EVO. It costs a little more but shines much brighter.

Frequently asked questions

How deep does the Chasing Gladius Mini S dive?

Up to 100 metres. The cable is available in 100 or 200 metre lengths.

How much does the Gladius Mini S cost in Germany, Austria and Switzerland?

In Germany roughly €1,260 to €1,500 with a 100 metre cable and around €1,700 with 200 metres. In Austria about €1,510. In Switzerland it is currently unavailable from large retailers.

How good is the camera?

A Sony sensor (1/2.3 inch) films in 4K at 25 or 30 frames per second and in Full HD at up to 120 frames per second. The field of view is 150 degrees, and there is electronic image stabilisation.

How long does the battery last?

Two 4,800 mAh batteries last up to 4 hours according to Chasing. Charging takes around 3.5 hours.

Gladius Mini S or FIFISH V-EVO?

The Gladius Mini S is cheaper but moves conventionally and has less light (2,400 versus 5,000 lumens). The V-EVO moves freely in every direction and films in 4K at 60 frames. With a grade of 2.5 the Gladius ranks 4th in our ranking.

You can find reactions and comments on this article in the Unterwasserpilot forum (in German, English posts welcome).

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Kenny, editor at Unterwasserpilot
EditorKennyKenny writes about ROVs, tests and missions for Unterwasserpilot.

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