Smart

Mammut

Smart

56 positive 0 neutral 4 negative

Based on 60 Reddit mentions

$49.95

Buy on Amazon

We may earn a small commission.

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 featurelowering controlClear feature

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

...

Tiny_Twink in r/ClimbingGear

August 7, 2025 9:20 PM

18

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.

...

CosmicChicken41 in r/climbergirls

January 3, 2026 11:29 PM

8

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

...

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

...

BostonFartMachine in r/ClimbingGear

August 29, 2025 9:23 PM

5

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

...

Leading-Attention612 in r/climbing

March 27, 2026 6:19 PM

2

Using the Ultra as God (aka. Tim Cook) intended

It works great. Replace the Mammut Smart 2.0 with the GriGri+ and you’ll get how I use it. I rappel down the tree with it. Is it the intended use? No but it’s a common practice with those who hunt from a saddle

five8andten in r/applewatchultra

March 5, 2026 12:24 PM

2

I’m curious about everyone’s opinions on ATC belaying — either using one yourselves or being belayed with one.

I always sing the praises of my Mammut smart alpine. It's the twin tube version, and it's been with me on more pitches than anything else. It is pickier about rope sizes, but as a single device for everything, it can't be beat. It has the smoothest rappel action and the smoothest belay action. One t

...

ewic in r/climbergirls

November 24, 2025 12:44 PM

2

Rappelling tips.

I started with a figure 8 backed up underneath with a schwabish hitch connected to my linesman loop (dominant side). Very easy to do. I'm now running a Mammut Smart 2.0 (same backup to linesman) and it's easier. It just requires a 9-11mm rope and an HMS carabiner. I don't want a mechanical device on

...

No_Replacement_5962 in r/bowhunting

January 30, 2026 3:49 PM

1

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

I guess I would say you should consider moving to something like a geometric device like Jul2, Mammut Smart, BD Pilot, etc. It won’t make you any less attentive because it’s a passive device but it will offer more controlled lower and save you in the very unlikely event you lose the brake strand. Al

...

Stereoisomer in r/climbing

July 24, 2025 2:59 PM

1

New to trad and multipitch - problem / question about tube style device

theses days i see no good reason to use a manual tube device. yes they work fine, but you are adding risk into the system. every year there are many accidents that would have been avoided if the belayer used a brake assisted belay device. i’ve switched from a grigri over to a neox and i love it. a m

...

anteatertrashbin in r/tradclimbing

February 17, 2026 10:26 AM

-8

Top alternatives in Climbing Belay Devices

#2