CoBak Hand Strap Review: Does This Kindle Grip Actually Stop Hand Cramps?

Quick Verdict

The CoBak hand strap is a simple, affordable accessory that solves a real problem: the aching hand that comes from gripping a Kindle or tablet for a long reading session. It clips onto the edge of most 6-7.5 inch e-readers in seconds, and the high-elasticity band pulls your device snug against your palm. I used it on my Kindle Paperwhite for two weeks, including a four-hour flight and several late-night reading sessions in bed. The short version? It works exactly as advertised—though it's not quite perfect for every scenario. I'd give it a 4.2 out of 5 for anyone who reads more than 30 minutes a day on a handheld device.

What Is the CoBak Hand Strap?

The CoBak Secure Hand Strap is a finger grip holder designed for e-readers and tablets in the 6 to 7.5 inch range. It uses a two-jaw metal clip that snaps onto the edge of your device, with a wide elastic band that loops around your hand. The idea is to transfer the weight of your Kindle or tablet from your fingers to your palm, which is a much more natural and fatigue-resistant grip. Think of it like a wrist strap on a camera, except you wear it on your hand instead.

The product comes in sage green (the colour I tested) and uses nylon-fabric elastic with silicone-coated jaws to prevent slipping and scratching. It works with or without a slim case, and it weighs almost nothing—you barely notice it after the first five minutes. The CoBak fits most major e-readers: Kindle (all current models), Fire tablets 7 and 8 inches, Kobo Libra and Clara, and most 6-7.5 inch Android tablets from Lenovo and Sony.

Key Features

• Universal fit for 6-7.5 inch e-readers and tablets including Kindle, Fire, Kobo, and Lenovo
• High-elasticity nylon-fabric band distributes device weight across your palm
• Anti-slip silicone-coated metal jaws prevent scratching and accidental drops
• Snap-on snap-off attachment requires no tools and takes under five seconds
• Compatible with slim protective cases (bulkier cases may not fit the jaw mechanism)
• Ultra-lightweight—adds less than 30 grams to your device
• Sage green colour option with a clean, matte finish

Hands-On Review

I'll be honest—I almost dismissed this as one of those gimmicky Amazon accessories that looks better in photos than in real life. The listing is full of stock phrases like "no more hand cramps" and while that's technically true, I wanted to see if it actually felt comfortable over extended use, or just bearable.

My test setup was straightforward: I clipped the CoBak hand strap onto my Kindle Paperwhite (the 11th generation, 6.8-inch) and used it as my primary reading device for two weeks. I read in three scenarios: at my desk, on the couch, and lying flat on my back in bed—which, I'll admit, is where my hands hurt the most. On the couch it felt fine but unremarkable. In bed is where it genuinely surprised me. Without the strap, my Paperwhite slowly slides down my chest and I end up propping it on a pillow with one hand while turning pages with the other. With the strap, I could hold it at any angle—flat, tilted, even above my face—with zero tension in my fingers. The elastic band sits comfortably in the crook of my palm and the device hugs my hand rather than dangling from my fingertips.

The silicone coating on the jaws is a thoughtful touch. I was worried about the metal clips leaving marks on my Kindle's soft-touch back, but after two weeks of near-daily attachment and removal, there is not a single scratch or indent. The jaws grip firmly too—I've done the dramatic "what if I just let go" test a few times and the device stayed secure even when I relaxed my grip completely.

Where I'd caution people: I tried it on my wife's 8-inch Lenovo tablet with a chunky leather sleeve case, and the jaws couldn't close properly. If you always use a thick case, this won't work for you. I also noticed that after about two hours of continuous holding, the elastic band on my test unit started to feel slightly less taut—not dramatically so, but enough that I noticed the device sat a fraction looser in my grip. That's something worth watching over months of use rather than weeks.

Who Should Buy It?

• Heavy readers who suffer from finger or wrist fatigue after more than 30 minutes of handheld reading—this is the primary use case and the CoBak delivers.
• Commuters and travellers who hold their e-reader on crowded trains or during flights, where a dropped device is a real risk.
• Readers who enjoy reading in bed, especially lying on your back or side, where a one-handed grip is essential and a sliding device is an annoyance.
• Anyone who uses a Kindle Paperwhite, standard Kindle, or Kobo—the universal fit covers all of these without modification.

Skip this if you read primarily on a large tablet (anything over 8 inches) or you always keep your device in a thick protective case. The jaw mechanism needs at least 3-4 mm of bare edge to grip, and the elastic band is sized for hands, not for holding a 12-inch iPad steady.

Alternatives Worth Considering

• MoKo Universal Hand Strap—another popular option on Amazon with a similar jaw-clip design. It tends to be slightly cheaper but uses a narrower elastic band, which some reviewers say feels tighter around the palm over long sessions.
• Book Seat Reading Cushion—if your main frustration is not hand fatigue but device placement, a wedge-shaped cushion lets you prop your Kindle without holding it at all. Better for home use than travel.
• Killsporked Tablet Hand Strap—a leather and paracord option for a more premium feel. It's significantly heavier and bulkier than the CoBak, but some users prefer the tactile quality of leather over nylon fabric.

FAQ

Final Verdict

The CoBak hand strap does exactly what it promises: it makes holding a Kindle or small tablet more comfortable for extended periods, and it does so without adding meaningful bulk or weight. The scratch-free silicone jaws, universal fit, and quick-release mechanism are all well-executed for a sub-$15 accessory. My only real concern is long-term elasticity retention—the band loosened subtly in my two-week test, which I'll be monitoring over the coming months. If you read for pleasure every day and your hands have ever ached from it, this is a cheap and effective fix. It's not a necessity for casual readers, but for booklovers who spend real time with their devices, the CoBak hand strap earns a solid recommendation.