Greatever Full-Face Snorkel Mask G2

Technical details

For calm surface snorkeling, a full-face design can make it easier to look around without holding a separate snorkel in your mouth. The Greatever G2 combines a panoramic viewing area with a dry-top snorkel system, a foldable design, and a removable camera mount. Its lens is described as a flat, transparent PU resin lens intended to reduce visual distortion.

The mask also uses a dual-pane design, which creates an insulating air layer to help limit fogging. A two-channel exhaust valve and a wider snorkel top are part of the design, the listed top diameter is 1.26 inches. These details describe the setup, but they don’t establish how the mask will fit every face or perform in every water condition.

Getting the most from it

Fit is the main buying decision here. Measure from the bridge of your nose to the base of your chin, then follow the size guidance: children and women should choose S/M at 12 cm or less, while men should choose L/XL at that measurement. For all users over 12 cm, the listing recommends L/XL. A careful fit matters for comfort and for the mask’s anti-leak design to work as intended.

Compared with a basic separate mask and snorkel, the G2 puts the viewing window and breathing setup into one piece and includes a camera mount. That may appeal if you want to keep your hands free to look around or capture a surface-snorkeling outing. A traditional setup may make more sense if you prefer separate components or want to choose a mask and snorkel independently. It suits you if an all-in-one format and a wide view are priorities. Not the best choice if you can’t match the sizing guidance or want details about camera compatibility that the listing doesn’t provide.

Usage tips

Before getting in the water, check that the mask sits comfortably and that its edge seals against your face without obvious gaps. Try it in a controlled, shallow setting before heading farther out. For a practical first outing, use the removable mount to attach a compatible motion camera, then keep your attention on the water and the fit rather than adjusting equipment while snorkeling. The listing doesn’t specify which camera models fit the mount, so check that before relying on it.

The dual-pane construction is intended to reduce fogging, but the product description also says an anti-fog agent can be applied inside the mask for added help in varying water temperatures. Follow the agent’s directions and avoid assuming the lens will stay clear in every condition. The G2 is presented for surface snorkeling, the listing doesn’t provide details for other kinds of underwater use.

Practical doubts

How do I choose between S/M and L/XL? Measure from the bridge of your nose to the base of your chin. Use the stated size guidance, including its different recommendation for men at 12 cm or less.

Can I remove the camera mount? Yes. The product description identifies the motion-camera mount as removable, but it doesn’t name compatible camera models.

Does the mask guarantee a fog-free view? No such guarantee is given. The dual-pane design is meant to reduce fogging, and the description notes that anti-fog agent may provide additional help.

Final verdict

The Greatever G2 is worth considering if you want a foldable full-face mask for surface snorkeling, value a broad viewing area, and can choose a size using the stated measurement. The dry-top system, exhaust valve, and removable mount give it more built-in features than a simpler mask-and-snorkel arrangement. The trade-off is that the listing leaves important practical questions unanswered, especially camera fit and how well the mask seals on your face. If sizing is uncertain or you need those compatibility details before buying, a more clearly specified setup may be easier to assess.