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Sixmou i3 4K Thumb Action Camera, Tiny Size, Mount vs MyGo Mouth Mount for GoPro®

Updated August 2026 — Sixmou i3 4K Thumb Action Camera, Tiny Size, Mount wins on waterproof and video quality, MyGo Mouth Mount for GoPro® wins on comfort.

The i3 4K Thumb Action Camera offers superior recording capabilities and versatility, while the Mouth Mount for GoPro® is a budget-friendly accessory for specific use cases.

Why Sixmou i3 4K Thumb Action Camera, Tiny Size, Mount is better

Recording

i3 records in 4K, while Mouth Mount does not record.

Waterproof

i3 is waterproof up to 131 feet, Mouth Mount is not.

Battery Life

i3 has 150 minutes of recording time, Mouth Mount has no battery.

Why MyGo Mouth Mount for GoPro® is better

Price

Mouth Mount is significantly cheaper at $19.95.

Comfort

Mouth Mount is designed for extended use without strain.

Specialization

Mouth Mount is tailored for surfers and wakeboarders.

Overall score

Sixmou i3 4K Thumb Action Camera, Tiny Size, Mount
85
MyGo Mouth Mount for GoPro®
65

Specifications

SpecSixmou i3 4K Thumb Action Camera, Tiny Size, MountMyGo Mouth Mount for GoPro®
Resolution4KN/A
Mount TypeMultipleMouth
ComfortStandardHigh
Recording Time150 minN/A
BrandSixmouMyGo

Dimension comparison

Sixmou i3 4K Thumb Action Camera, Tiny Size, MountMyGo Mouth Mount for GoPro®

Overview of the Products

The i3 4K Thumb Action Camera is a compact, versatile camera designed for hands-free recording, while the Mouth Mount for GoPro® is a specialized accessory for securely mounting GoPro cameras in your mouth. The i3 is priced at $73.99, whereas the Mouth Mount is significantly cheaper at $19.95, making it about 73% less expensive. Both products cater to action sports enthusiasts but serve different purposes in capturing footage.

Design and Portability

The i3 4K Thumb Action Camera boasts a tiny design, smaller than your thumb, weighing just 1.25 ounces. This makes it exceptionally portable, allowing users to mount it on their bodies without feeling burdened. Conversely, the Mouth Mount for GoPro® is designed to be worn in the mouth, featuring a breathable scuba-style mouthpiece. While the i3 is designed for a variety of mounting options, including a magnetic lanyard pad for quick attachment, the Mouth Mount is specialized for use with GoPro cameras, prioritizing stability and comfort for extended use.

Features and Capabilities

The i3 offers impressive features for action camera enthusiasts, including 4K recording capabilities and 131 feet of waterproofing with its case. It allows for continuous recording for up to 150 minutes in 1080P mode, which is ideal for long outings. The Mouth Mount for GoPro®, while lacking in recording capabilities, includes features designed for comfort, such as bite supports and a big air channel for easy breathing, making it suitable for activities like surfing or wakeboarding. Each product brings unique advantages tailored to their respective uses.

Pricing Comparison

At $73.99, the i3 4K Thumb Action Camera is significantly more expensive than the Mouth Mount, which is priced at $19.95. This represents a price difference of about $54.04, making the Mouth Mount approximately 73% cheaper. If you’re on a budget, the Mouth Mount presents an economical option for GoPro users, whereas the i3 is a more substantial investment for those seeking high-quality video capture in a compact form.

Target Audience

The i3 4K Thumb Action Camera is ideal for vloggers, cyclists, motorcyclists, and anyone looking to capture high-quality footage hands-free. Its versatility and compact size make it appealing to a wide range of action sports enthusiasts. In contrast, the Mouth Mount for GoPro® specifically targets surfers and wakeboarders who need a stable way to capture footage while keeping their hands free. Each product speaks directly to the needs of its respective audience, ensuring that customers get the best experience suited to their activities.

Usage Scenarios

The i3 4K Thumb Action Camera excels in diverse scenarios, from cycling to underwater adventures, thanks to its waterproof case and multiple mounting options. Its capability to record up to 150 minutes allows for extended use during long trips. On the other hand, the Mouth Mount is particularly suited for water sports, enabling users to film their rides without compromising stability. Both products cater to active lifestyles, but the choice between them depends on the specific needs of the user.

Brand Reputation

The i3 4K Thumb Action Camera is produced by Sixmou, a brand that focuses on delivering compact action cameras aimed at modern adventurers. While specific sales rankings are not provided, it holds a bestseller rank of 1892, indicating a solid market presence. The Mouth Mount is made by MyGo, a brand recognized for its innovative accessories for GoPro cameras, including designs used by professional athletes. This endorsement adds credibility and appeal for those looking to enhance their GoPro experience.

Which should you buy?

Choosing between the i3 4K Thumb Action Camera and the Mouth Mount for GoPro® hinges on your intended use. If you are looking for a versatile, high-quality camera that captures stunning 4K footage while being portable, the i3 is the clear winner despite its higher price. Alternatively, if you already own a GoPro and need an affordable, reliable way to capture footage while participating in water sports, the Mouth Mount is a specialized and cost-effective choice. Ultimately, both products serve distinct purposes, making your decision dependent on your specific needs in action filming.