Smart Tools SmartCuffs 4.0 | 2 Pairs
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4 Cuffs • iBFR™ LOP Calibration in 10 Seconds • Tri-Pressure™ Technology • Bluetooth® Connected • 80% LOP Safety Cap • 5x Battery Life • 30-Min Charge • Mix & Match S / M / L / XL • FREE Shipping
SmartCuffs® 4.0 — 2 Pairs includes 4 SmartCuffs® with permanently affixed pumps, giving you the flexibility to train both arms and legs at the same time. Building on the global success of SmartCuffs® 3.0, this fourth-generation system combines cutting-edge AI-powered technology, advanced safety features, and superior comfort for clinical and personal use. Patent-pending iBFR™ LOP Calibration determines your Limb Occlusion Pressure in just 10 seconds. Exclusive Tri-Pressure™ Technology offers three BFR modes: Continuous, Intermittent, and Resting. Bluetooth® connectivity pairs with the SmartCuffs® app (iOS & Android). Inflation capped at 80% LOP. Li-Ion battery lasts 5x longer than competing wireless BFR systems and charges in under 30 minutes. Mix and match sizes across both pairs to suit different limbs. Includes durable carrying case and USB-C charging block and cable.

| Specification | Detail |
|---|---|
| Model | SmartCuffs® 4.0 |
| Quantity | 4 cuffs (2 pairs) |
| Application | Arms and legs |
| Calibration | Patent-pending iBFR™ — LOP in 10 seconds |
| BFR Modes | Continuous, Intermittent, Resting (Tri-Pressure™ Technology) |
| Safety Cap | 80% LOP maximum inflation |
| Connectivity | Bluetooth® — SmartCuffs® app (iOS & Android) |
| Battery | Rechargeable Li-Ion — 5x longer than competitors |
| Charging Time | 30 minutes or less |
| Packaged Dimensions | 6" × 4" × 6" |
| Weight | 8 lbs |
| Includes | 4 SmartCuffs® with integrated pumps, durable carrying case, USB-C charging block and cable |
| Brand | Smart Tools |
| Size | Circumference | Measuring Instructions |
|---|---|---|
| Small | 8–13 in. | Arms: between shoulder and bicep • Legs: thigh closest to hip |
| Medium | 13–18 in. | Arms: between shoulder and bicep • Legs: thigh closest to hip |
| Large | 18–24 in. | Arms: between shoulder and bicep • Legs: thigh closest to hip |
| X-Large | 24–29 in. | Arms: between shoulder and bicep • Legs: thigh closest to hip • If between sizes, choose the larger size |
Yes — you can mix and match sizes across both pairs. For example, you could select Small/Small for your arms and Large/Large for your legs, or any other combination from the available size options.
Continuous BFR inflates during both exercise and rest — ideal for advanced rehab or joint unloading. Intermittent BFR inflates only during exercise — great for beginner rehab or joint de-loading. Resting BFR inflates during rest and deflates during exercise — perfect for easing into BFR or advanced rehab with heavier weights.
Yes — SmartCuffs® 4.0 pairs via Bluetooth® with the SmartCuffs® app, available on the Apple App Store and Google Play. Smartphone not included.
Yes — inflation is automatically capped at 80% LOP, providing a built-in safety limit for effective and secure BFR training at home or in a clinical setting.
Yes! Flexible financing options available at checkout.
SmartCuffs® 4.0 — 2 Pairs (4 cuffs). iBFR™, Tri-Pressure™, Bluetooth®, 5x battery life, mix & match S/M/L/XL. FREE Shipping included.
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