9 Best Belay Device of 2026

The Grigri’s cam-assisted braking engages consistently across rope diameters from 8.5 to 11 mm, making it a staple for gym and sport climbing. Unlike a manual tube device, the cam automatically locks on a falling leader, reducing the chance of a dropped lead during belay.

This device fits lead climbers who frequently belay partners of different weights or are making the switch from tube devices. The side plates can feel thin on some units, though this is a usability tradeoff rather than a safety concern; a brief break-in period may be needed for the lowering action to feel fully smooth.

The ergonomic handle provides a 3:1 mechanical advantage for controlled lowering, and the assisted braking is intuitive enough for newer belayers to learn quickly. For alpine or multi-pitch climbing where weight and simplicity matter more, a lighter guide-mode device like the Reverso would be a better match.

The Mammut Smart 2.0 keeps things simple: a tube-style device with an insert that provides assisted braking for top-rope belaying. No moving parts, no cams — just a clean 80g build that gives extra friction when the rope runs through it, so a falling climber is caught with less effort from the belayer. Compared to a basic ATC, this offers a step up in safety without the complexity of a cam-driven device.

This device targets top-rope gym climbers, budget-conscious beginners, and anyone who prefers a minimalist design. The assisted braking works well for giving and taking slack on top rope, but it is not suitable for lead climbing — the rope can jam when you try to feed slack quickly, making it frustrating and unsafe for sport or trad leading. Also, it requires a specific HMS carabiner shape (the Mammut Smart HMS is recommended) for smooth operation; a generic pear-shaped HMS may cause friction issues.

When used with a compatible carabiner, the Smart 2.0 feeds rope smoothly on top rope and locks down on a fall. The lightweight aluminum body and plastic insert make it easy to handle, and there is no learning curve for someone already familiar with a tube device. For gym sessions where the climber is always above the belayer, this adds a reassuring layer of braking without the bulk or cost of a Petzl Grigri.

At 68 grams, the Petzl REVERSO is barely noticeable on a rack. Its guide mode lets the anchor-end belay two seconds independently, with no need for a separate tether or extra hardware. That direct friction path means less slack in the system and a cleaner anchor stance.

The V-shaped friction grooves grip a wide range of rope diameters — single ropes from 8.5 to 10.5 mm, half and twin pairs down to 7.1 and 6.9 mm. This tolerance matters when switching between a skinny alpine line and a beefier sport rope on the same trip. The aluminum body keeps it corrosion-resistant on wet routes, though it will wear faster than steel if used heavily with abrasive ropes.

This device targets trad and alpine climbers who prioritize weight and guide-mode functionality over hand-holding. It requires the belayer to maintain correct brake-hand tension on lead belay — no cam to catch a loose grip. For gym-only climbers or anyone who prefers assisted braking, the Grigri (also in this guide) is a more forgiving option. The REVERSO shines when every gram counts and you already own the belay technique.

The Safeguard delivers one-handed operation and immediate cam engagement, making it a natural fit for saddle hunting descents where a climber needs to control descent while managing gear. Its aircraft-grade aluminum and stainless steel build handles outdoor abuse without added bulk.

Praised by hunters for SRT use, the device prioritizes instant braking over smooth slack feeding. That same cam engagement can feel abrupt when belaying a leader, so it works best in single-rope descent scenarios rather than dynamic lead climbing.

This device suits saddle hunters and climbers who also hunt, but its premium price and lack of guide mode make it less compelling for pure rock climbing or gym use. For standard lead belaying, the Grigri provides similar assisted braking at a lower cost.

The AOKWIT Figure 8 delivers a 50kN breaking strength that exceeds what most climbing belay devices offer, making it suited for rescue and industrial rope work. In contrast to the Black Diamond ATC Package, which prioritizes lightweight portability for sport climbing, this device is built for handling heavy loads and repeated use. Its bent-ear design allows for smooth rappelling and lock-off, though the tradeoff is a larger footprint that feels excessive in a gym pack.

Rappelling with the Figure 8 is straightforward: the ears provide friction control, and lock-off is secure. Some units may show cosmetic flaking of the powder coating, but this does not affect function. The device is not intended for lead belaying because the figure 8 geometry twists ropes, introducing a safety risk when giving slack.

This device fits rescue crews, industrial rope access technicians, and budget-conscious buyers who need a durable rappel device for occasional use. It is not a replacement for a tube-style belay device for sport climbing or lead belaying. Gym and sport climbers will find it heavier and bulkier than necessary, and the rope twisting makes it unsuitable for belaying a leader.

The Black Diamond ATC is the same bare-bones tube device found in the ATC Package, made from the same aluminum with the same 60g weight. It delivers the same predictable friction for belaying and rappelling on single ropes. The catch is price: this standalone unit costs more than the package that includes a matching locking carabiner. Rope threading can feel tight with thicker ropes, requiring a bit of care during setup. This device makes sense only if you already own a compatible carabiner and want a spare or need to replace a lost device without buying another full kit.

The Smart 2.0 is a capable tube-style assisted braking device, and the Smarter add-on clips to the brake hand to provide a visual cue for proper hand position — useful when an instructor needs to verify technique at a glance. The complete package eliminates separate purchases. However, the price is steep compared to buying the Smart 2.0 and a carabiner on their own, and the add-on’s real-world performance is less established than the standalone device. Its benefit is limited to structured teaching sessions; for general gym or sport climbing, the lighter Smart 2.0 alone makes more sense.

The Petzl Grigri+ builds on the standard Grigri’s assisted braking by adding an anti-panic handle and selectable top rope and lead modes. The anti-panic feature is designed to catch a runaway rope during lowering, which gives new belayers an extra layer of security. However, the same handle can engage unintentionally during normal lowering, slowing descent and frustrating users who prefer direct control. For experienced climbers, the standard Grigri or a tube device offers more predictable feedback. The Grigri+ is heavier and more complex, making it less suited for multi-pitch or alpine use. It works best for gym and single-pitch sport climbing where the safety net outweighs the occasional slowdown.