
A quick-release running armband is one where the phone holder detaches from the band, so you can take your phone with you without unstrapping the whole thing from your arm. On the LULURUN armband, that job is done by a detachable mount with a 90° twist lock: the phone comes off, and the band stays on.
That's the short answer. Below is how the two parts fit together, when it makes sense to use the release, and a simple check to do every time you lock it back in.
What does "quick-release" actually mean on a running armband?
"Quick-release" is a category name, not a timed promise. It simply tells you the armband is built in two parts instead of one:
- The band — the strap that wraps around your upper arm and stays there.
- The holder — the part that carries your phone, attached to the band through a mount.
On a one-piece armband, the holder and the strap are a single unit, so the phone goes wherever the band goes. On a two-part armband, the holder is the piece that comes away. That's really the whole idea: you separate the phone from the band, not the band from you.
One thing worth knowing as you shop: on LULURUN's armband, the detachable part is the phone holder. It isn't a buckle on the strap, and it isn't a pouch either.

How does a twist-lock mount work on the LULURUN armband?
The LULURUN armband has three pieces working together, and each one has its own job:
- An open silicone holder that grips your phone at its corners, with no pouch or plastic window over the screen.
- A detachable mount that connects the holder to the band and locks with a 90° twist. This is the quick-release part.
- The band itself, which stays on your upper arm while the phone is off.
The mount also rotates a full 360°, so you can adjust how your phone sits. That's a separate feature from the lock. For this guide, the part to remember is simple: the twist lock is how the holder attaches and detaches.
The product page doesn't list a release time, so we won't promise one. The habit it does ask for is simple: check the mount is securely locked again before you start moving.
When should you detach your phone?
Think of the release as a stop-and-go tool, not a mid-stride trick. Pause somewhere safe before using or detaching your phone, and check the mount is securely locked again before moving.
A few happy moments where taking the phone off can be handy:
- A coffee stop halfway through your loop, when you'd rather hold your phone than look down at your arm.
- A pretty view you want to photograph properly, with the phone in your hand.
- Sitting on a bench to cool down, scroll your route, or text a friend that you finished.
In each case, you can leave the band right where it is. No unstrapping, no re-fitting the strap from scratch when you set off again. If you've ever wondered whether it's easier to just hold your phone the whole way, our post on running while holding your phone in your hand walks through that choice.

A simple check before you start running again
Before you pick up the pace after a stop, take a moment for this little routine:
- Seat the phone. Check that each corner is held securely in the silicone holder.
- Lock the mount. Check that the detachable mount is locked in place before you move.
- Test with easy steps. Walk or jog briefly to check the fit, and adjust before picking up the pace.
- Re-check the band if needed. If it has slipped, pause and reposition it rather than over-tightening. Our guide to how tight a running armband should be has more on finding a comfortable snug fit.
What should you check before buying a quick-release armband?
A release is only useful if the rest of the armband fits you and your phone. For the LULURUN armband, here's what the product page lists:
- Phone and case: The stated phone range is 5.0–6.9 inches with slim or clear cases; thick, rugged and MagSafe wallet cases are not compatible. Check both your phone and your case.
- Arm: The stated upper-arm fit is 10–16 inches (25–41 cm).
- Movement: A snug fit helps minimize bounce; some movement is normal.
- Water: The armband is sweat resistant, not waterproof, and the open holder does not shield your phone from water.
Not sure about your fit? You can ask before you order. If you're new to the whole category, what is a running phone armband is a friendly place to start.
FAQ
Can I remove my phone without taking off the armband? Yes. On the LULURUN armband, the holder is attached through a detachable mount, so your phone can come off while the band stays on your upper arm. Check the mount is locked again before you move.
Are the 90° twist lock and the 360° rotation the same feature? No. The 90° twist lock is how the holder attaches to and detaches from the band. The 360° rotation lets you adjust how your phone sits while it's attached.
Can I detach it while running? Please don't. Pause somewhere safe before using or detaching your phone, then check the mount is securely locked again before you start moving.
Run happy, run free.