Seems the only thing holding the phone is the pressure and friction of those four arms. A bike vibrates. If one loosens, what, the phone drops out?
2038531
The arms are spring-loaded and the tips are soft rubber. They hold the phone just fine for 100+ mile rides. However, when I ride across Sonic Nap Alert Pattern (SNAP) rumble strips (see http://www.usroads.com/images/ri98083.gif), that vibration can be bone jarring... and can send the phone flying. I now put a hand on the phone when crossing those.
2038532
Basically...but the rubber,friction, and ball detent within the mount have actually held my large HTC One on the handlebar of my road race bike for about 1000 miles. It shakes modestly when I get over 30 mph and fly over rough roads but I have yet to loose it. (But I also use an Otterbox Defender) (I am totally satisfied with this item and would highly recommend it).
2038533
I have crashed a bicycle AND a motorcycle with this mount and the phone did not fall out. On the other hand, if you do secure the phone all the way into the jaws, it will fall out (duh).
2038534
I have yet to have this mount drop a phone and I've ridden over 1k miles this year. Best mount I have come across to date! My primary phone is an iPhone 4s.
541516
This has a plastic body over a metal frame. I don't think it's quite four pounds. But it's definitely not light. (The website says the phone is only 1 pound -- that was NOT true of the phone I received.... it might have changed since I bought it several years ago.) If you need a phone that isn't going to move, though, Cortelco makes some phones that can basically be BOLTED down. Take a look at their other stuff.
756718
The neck will not move or bounce around it is very stiff you almost need to position it with two hands. The square part that holds the phone does swivel but you can tighten it down with a knob in back of it.
1027389
There's a magnet that hold the case closed. I've never dropped mine, but it feels relatively secure.
1135370
There is an inside phone holder, but the unit is one whole piece. The parts do not come apart.
1800255
I can tell you this much, on a mountain bike, riding a very rough ride over rocks, it stays on rock solid. The phone popped out of the grip once when I threw my bike, but the handle bar grip has been solid
1795539
Basically for protection. I have drop mine several times, until it was one to many and the clips that hold it together broke, but not the phone itself remained unharmed. So for the price this is an excellent investment. It also serves as a better grip.
295703
The stand will probably not tip over, but more than likely the phone will slide off due to its weight. There isn't much there to hold the phone completely.
880819
No. You just snap your phone into it and take it out whenever needed. It does hold the phone securely. I don't worry about it falling out.
1875367
This is a common problem with these phones, which is ironic since they are made for travel. They are delicate, and the post that holds the cup can snap. They will replace it with a receipt.
218971
I use it for mountain biking and road cycling. It vibrates some on rough terrain, but I haven't lost my phone yet.
2049438
The arms aren't lockable, but the tension is adjustable. Touching the screen shouldn't cause much, if any, movement.
1125948
Hi Sandra, There should be a little opening at the top right side of you phone that you put do that funny loop through and go in between rope that will hold it, It's a great idem to have, save me from dropping it to the ground. You can put your finger through the ring and hold on to your phone. Love it.
1054470
It sets upright. If you try to use it while in this position, the phone may fall.
537759
The plastic hold the phone tightly, when inserting the phone, two snaps are heard, ensuring that the phone is well secure. Personally i havent dropped it, but if i did, the phone wil not fallout
1016305
I agree completely with simbp215. I have not had my iPhone 5C slip from the gripper during normal road vibration. I have had it tilt at the ball joint over very bumpy roads. Of course this is on a bicycle, not a Harley.
1547065
you do have to pull a little bit use your arm muscles I would say. But it is nice and tight and I have dropped my phone and the case is in tack and did not fall apart.