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DJI Osmo Nano Hiking Review | 52 g, Chain Sections and Inside a Waterfall

2026.05.22

I want to bring the mountains home in better quality, with less effort. What I don't want any more is a heavy camera hanging off my neck. A 52 g companion turned out to answer both of those at once.

The camera I carried up Mitakesan (929 m), in the mountainous western edge of Tokyo known as Okutama, was the DJI Osmo Nano — an ultralight wearable camera that weighs less than a single egg. I put it through the harshest situations the mountain had: chain sections, and the inside of a waterfall. The short version: if you want to shave every gram off your pack but refuse to compromise on image quality, this is a camera I can recommend without hedging.

DJI provided this camera. Everything below is what I actually felt using it in the mountains, including the parts that didn't work.

Why weight is the first thing to look at in a hiking camera

I once hiked with an action camera (the DJI Osmo Action 5 Pro) mounted on my helmet. The footage was beautiful, but my neck grew heavier as the day went on, and by the end I was filming through gritted teeth. I suspect plenty of people know that feeling.

The Osmo Nano weighs 52 g. Sitting in your palm it's light enough to make you laugh. The number alone tells you it's light — but what actually matters on a mountain is a different fact: you never reach a point where you want to take it off.

When your gear doesn't press on your neck or your body, you forget you're wearing a camera at all. And that's exactly why the "I should have filmed that" moments almost disappear. Before any spec sheet, that lightness is the single condition for keeping a camera rolling in the mountains.

Magnetic mounts change how freely you can shoot

What it does

The base and the back of the Osmo Nano are magnets. It snaps onto the supplied mounts and accessories, so there's no screwing into a tripod thread. I used three: a cap mount, a headband, and a chest mount that clamps onto your clothing.

How it felt on the trail

On a cap or headband you get footage close to your own line of sight. The moment you look up at the view, the moment you check the rock at your feet — it all ends up in the record, and that's genuinely fun to watch back. The chest mount, meanwhile, just pinches your clothing magnetically, so it comes on and off in a second. When you think "now," you can have it ready immediately, and you stop missing moments.

My camera operator and I swapped it between mounts as the terrain changed, and the near-total absence of friction in those swaps is what I appreciated most. Not having your shooting choices dictated by the weight and hassle of the gear is more comfortable than I expected.

What a 1.3-inch sensor does for the 4K footage

Something this small makes you worry about image quality, but the Osmo Nano packs a 1.3-inch sensor into that 52 g body — a sensor that feels out of proportion to the size of the thing. 4K/60fps handles motion smoothly, and moving water in a stream or trees shifting in the wind hold together nicely.

What impressed me most was the dynamic range. On a clear day in the mountains, a blue sky that wants to blow out and rock shadows that want to crush sit in the same frame. Most cameras give up one or the other. The claimed 13.5 stops is not marketing: the blue of the sky and the detail in the shadowed rock both survived. Getting a picture that close to the air you actually saw, one-handed, was an honest surprise.

Handling on a chain section — working it in gloves

Mitakesan has chain sections where you haul yourself up rock, and there the thing you need from a camera is handling. Small buttons are awkward through gloves. The Osmo Nano's side button has enough travel to press positively, so I could start and stop recording in gloves with certainty. No more of that sad discovery that the shot you thought you got never recorded.

Changing settings works too — the touchscreen responds through gloves. That's a real gift in winter or any cold spell. Not having to fight a menu with numb fingers is a small thing that adds up to a lot of reassurance on a mountain.

The other feature that earns its place on terrain like that is 4K/120fps slow motion. The instant of grabbing rock and pulling yourself up records cleanly in smooth slow motion. With the camera on my chest and the two of us climbing, the climbing cuts came out with real immediacy.

Into the waterfall — testing the waterproofing

The most reckless thing I did was the waterfall test. Not just taking spray — I squeezed through a narrow gap in the rock and went straight into the falling water. Camera still on my chest, into the water. I'll admit my heart was going, but the Osmo Nano kept shooting from the spray right through to underwater.

The force of the water coming down, and the light glittering when you look up from underneath, are shots you rarely get on a normal hike. If you don't trust the waterproofing you simply don't attempt cuts like that. Knowing it can get soaked translates directly into a wider range of footage.

Battery, offloading, and the useful extras

Battery life matters on a long day, and paired with the video transmission module it runs up to 200 minutes. After a full day of heavy use I still had plenty left. Offloading afterwards runs at 600 MB/s, which takes a lot of the friction out of the work once you're home.

The extras are well judged. With the transmission module you can film yourselves from around 10 m away, which makes wide establishing shots possible up on the mountain — that's a lot of fun. There's also the same beauty retouching as the DJI Osmo Pocket 3, which does a tidy job on a face that has been through a long day of hiking. Honestly, I was grateful for that one.

The one real weakness

I've said a lot of good things, so let me be straight about the downside.

It's too small. Which, in the mountains, is also its greatest strength — the angles that were physically impossible with a big camera all became available precisely because it's tiny. But there is exactly one problem: you genuinely panic about where you put it. It sticks magnetically to anything, so you forget it's clipped to your jacket and start tearing through your pack. Until you get used to it, you may need to consciously decide on a home for it.

One more thing, and this is about use case rather than a flaw: if most of your shooting is indoors or in low light, compare it against other options. The Osmo Nano's real strengths show in bright fields — daytime mountains and the outdoors.

Who it's for (what I concluded)

After a day on Mitakesan taking it from chain sections into a waterfall, this is who I think it suits:

• Anyone who wants to save every gram but won't compromise on image quality
• Anyone who wants to keep filming while climbing, with both hands free
• Anyone who wants to record chain sections, stream beds, and other places a big camera can't easily go
• Anyone who needs to operate a camera in gloves, in winter conditions

If your shooting is mostly indoors or in the dark, I'd look at other models alongside it.

Conclusion: 52 g changes what you bring home

"I don't need a heavy camera any more." That's my honest take after this shoot. 52 g isn't just a specification; it changes the experience itself — you forget you're wearing a camera, so you stop missing shots. The freedom of the magnetic mounts, handling you don't have to think about on a chain section, and enough confidence to jump into a waterfall. Every piece of footage from that day, of me and of the scenery, came from this one camera.

It isn't perfect. Being small means losing track of it, and low light is not its strength. But if you want to record video while staying light on a bright, demanding field like a mountain, the Osmo Nano is a strong companion. Full specs and where to buy are linked in the video description, if you want to look further. I think 52 g will change what you bring back from the mountains too.

Note: this post is based on a video produced with a camera provided by DJI.

🛒 See the gear from the video as a list → The kit I shoot my mountain videos with

As an Amazon Associate, Yoshimi Iwasaki earns from qualifying purchases.

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