Smart

Mammut

Smart

56 positive 0 neutral 4 negative

Based on 60 Reddit mentions

$49.95

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Most discussed features

Sentiment summary across the product areas Reddit users mention most.

Reddit mentions

Original Reddit posts and comments behind this analysis.

Filtered by featurebraking performanceClear feature

Black Diamond ATC Pilot or Gri Gri for a beginner?

Most of the comments thus far aren’t aware of the differences between a standard ATC, and an ATC Pilot. You can’t go wrong with a grigri or Pilot but the Pilot is the better option for most first devices IMO. Unless you’re gifting it to someone. My recommendation is not as a former Black Diamond rep

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BostonFartMachine in r/ClimbingGear

March 24, 2026 4:05 AM

21

What is the best belay device for a left-handed 13 year old?

Left handed belay instructor here… Like it or not, the industry is moving towards assisted breaking devices, so don’t buy an ATC. On toprope, you can actually apply some pretty slick left handed technique with a GriGri, but not so much when lead belaying. Any of the geometry assisted devices (BD Pil

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Tiny_Twink in r/ClimbingGear

August 7, 2025 9:20 PM

18

Belay device recs

I like the mammut smart 2.0. I think it's normally 50 bucks, but REI has it on sale etc. It has no moving parts in it but uses an interior pinching surface that interfaces with the rope and caribiner to assist lock if the rope starts feeding too quickly (someone is falling). With a single mechanism

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soygilipollas in r/ClimbingGear

November 25, 2025 4:29 PM

8

Advice after top-rope belaying/lowering accident?

This happened to me before - lowering a heavier climber and I got my hand stuck in the ATC and it was so painful. I got an auto braking device (Mammut Smart) which feels a lot like an ATC but has the auto brake similar to a grigri. I personally don't like a grigri because it is harder on lead belay.

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CosmicChicken41 in r/climbergirls

January 3, 2026 11:29 PM

8

Belay carabineer

Yeah, silly me for not mentioning my belay device. I use Mammut Smart 2.0, from the manual it says: "To guarantee optimum functioning of the Smart 2.0, the use of a Smart HMS or a similar symmetrical, round-profile HMS carabiner is recommended." What bothers me here is the phrase "symmetrical, round

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Acceptable_Tower_609 in r/tradclimbing

September 24, 2025 9:22 AM

10

Belay carabineer

I use a smart alpine, which is a twin-tube version of the Mammut Smart. There is an odd motion that you can do where the curve of the belay biner can bind in the device, locking it up and preventing rope from traveling in either direction in it. I think it is better to have the wider belly, as well

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ewic in r/tradclimbing

September 24, 2025 1:01 PM

7

Backing up the reverso for kids

The mammut smart and atc Pilot are geometry based and use almost the same technique for belaying as your reverso, with the benefit of the backup that you’re trying to figure out. I’m not a fan of making something that is not complex more complex because I don’t want to pick a tool that already exist

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BostonFartMachine in r/ClimbingGear

August 29, 2025 9:23 PM

5

Gyms Worldwide Increasingly Ban Tube-Style Belay Devices in Favor of ABDs

Look up the Mammut Smart 2.0. It functions like an ATC but has assisted breaking.

MotorPace2637 in r/climbing

July 23, 2025 12:23 PM

4

which belay device to use?

Mammut Smart 2.0 is really nice for single pitch sport, much easier to feed slack for lead belay compared to a grigri and the assisted breaking bites very hard like a grigri. I know people will say that it’s fine to lead belay with a grigri, but the safe way (without disengaging the cam) is very fin

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FeePhe in r/ClimbingGear

April 7, 2026 6:02 PM

2

Weekly Question Thread (aka Friday New Climber Thread). ALL QUESTIONS GO HERE

If you only ever plan to do single pitch climbing with anchor hardware, it's fine. Very similar to the Ederlid Jul2, Ocun Bow, and Mammut Smart. However Petzl Grigri or Edelrid Pinch are better at locking off the rope if your partner is projecting and hanging lots, or if you have a weight difference

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Leading-Attention612 in r/climbing

March 27, 2026 6:19 PM

2

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