Action cameras are great until you realize you’ve left yours at home. Phones are always with you, but most of them are too big, too fragile, or too awkward to mount anywhere useful. The FOSSiBOT F116 Pro is a compact, rugged phone that tries to solve both problems at once, and the approach is specific enough to be interesting.
The F116 Pro is built around a 4.05-inch display and has a standard 1/4-inch screw socket at the bottom, the same thread you’d find on a tripod or a GoPro accessory. That means it works with the same ecosystem of mounts that action cameras already use: chest straps, suction cups, handheld grips, and neck mounts. The phone goes where the camera goes, instead of staying in your pocket while you film.
Designer:
The camera is a 48 MP wide-angle unit with a 152.6-degree field of view, which is genuinely wide. Most smartphone ultrawide lenses sit somewhere between 70 and 90 degrees for comparison. Built-in stabilization smooths out footage on bumpy terrain, and a dedicated physical camera button on the body launches the camera instantly without unlocking the phone first, which matters more than it sounds when you’re actually moving.
Inside, the phone runs on a MediaTek Dimensity 7300 chipset built on a 4nm process, paired with 12GB of RAM and 256GB of storage, expandable up to 1TB with a now-rare microSD card slot. The display refreshes at 120Hz, 5G connectivity means footage can leave the device without hunting for Wi-Fi, and a 3,700 mAh battery with 33W charging keeps things moving. Modest numbers, but proportionate to a 4-inch screen and mid-range specs.
There’s also a rear circular LED that FOSSiBOT calls a “Light Signal Tower,” which cycles through colors and can be set to show notifications. It reads as a feature designed more for personality than practicality, but on a device this small, glancing at the back for alerts without waking the screen has some logic to it.
The compact body is the most interesting design choice here, and also the one that will define the experience. At 4.05 inches, the screen is smaller than almost anything else currently on the market. That’s a genuine advantage for one-handed operation and pocket carry, and a real limitation for anything that benefits from screen size: reading, navigation, video playback. The F116 Pro is betting its users want something small enough to forget they’re carrying it.
FOSSiBOT has been around since 2022 and claims more than 1.5 million users across its lineup. The F116 Pro showed up at CES earlier this year, and again at MWC 2026, which suggests the company is serious about getting it in front of people. The more honest question is whether a mountable, rugged, mini-format phone lands in a gap the market actually has, or one the market has already decided it doesn’t need.
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