The GriGri is an assisted-braking device whose cam helps lock the rope in a fall; the ATC is a simple tube device relying entirely on your brake hand. The GriGri shines for sport climbing and projecting; the ATC is lighter, works with two ropes, and is better for rappelling and multi-pitch.
| Aspect | GriGri | ATC |
|---|---|---|
| Type | Assisted-braking | Tube (manual) |
| Braking | Cam-assisted lock | Hand friction only |
| Best for | Sport, projecting, gym | Multi-pitch, rappel, alpine |
| Ropes | Single | One or two |
| Rappelling | Single-strand lower | Double-strand rappel |
| Weight & price | Heavier, pricier | Light, cheap |
Choose GriGri if…
- You're sport climbing or projecting
- You want an extra catch margin
- You belay a lot in the gym
- Your partner takes many rests/falls
Choose ATC if…
- You're climbing multi-pitch
- You need to rappel on two ropes
- You want a light, simple alpine kit
- You're on a budget
Verdict
Frequently asked questions
Is a GriGri safer than an ATC?
A GriGri adds an assisted-braking mechanism that can catch a fall even if the belayer is briefly distracted, which is a helpful backup. But it can be misused, and 'assisted' is not 'automatic' — good technique with either device matters more than the device itself.
Can you rappel with a GriGri?
A GriGri only takes a single strand, so you can lower with it but can't do a standard double-strand rappel. For rappelling both strands of a doubled rope, a tube-style ATC is the better tool.
Which is better for beginners?
Both are used by beginners. A GriGri's assist is reassuring, but it requires learning correct slack-feeding technique; an ATC teaches fundamental brake-hand habits. Whichever you learn, get proper instruction.
Related: GriGri · ATC · Belay device · Assisted-braking device · Belay