I have a lot of bikes so I'm getting lots of time in on various handlebar mounts.This one works pretty well but has a few things to complain about.For starters, a wider handlebar clamp bracket would be appreciated. The bracket is appropriate for a bell or headlight, but for a phone should be a bit wider, perhaps even with two screws. That's a lot of rotational force this mount is being asked to withstand, and I know I'm taxing the limits of the clamping screw and the plastics to get this properly tightened. I suggest a layer of doublesided rubber tape on the handlebar where this thing is to mount.Secondly, the swivel mount has be concerned. It's a simple (and small) plastic thumbscrew with a steel threaded insert. This is the type of part that likes to vibrate loose over time. It holds sufficiently, but I recommend a drop of medium strength thread locker to ensure this stays in place over time.The actual phone holding mechanism involves four spindly arms that all retract in to grip the phone at all four corners. This works well! I feel very confident that my phone is not going to go flying off over the next pothole. Definitely more secure than the silicone strap style holders.The holder also comes with custom-cut foam pads in different thicknesses to prop up the underside of the phone, in case it's thin. I haven't needed these because my phone is thick and wears a case, which BTW is not a challenge for this mount.What I'm not a fan of is the clicky wheel under the center of the base. This wheel is used for tightening the arms, but is not the easiest to get to once the phone is in place.Also, the release tab is located underneath one corner of the base, and has to be hunted for to get the phone back.So far this holder is sitting behind the Delta "Smart" and GUB Plus 6 phone holders, both of which are simpler to use and better constructed. But that's not to take away that this offers a secure mount at a reasonable price.

The mount is absolutely satisfactory and is going strong after 1 month of usage.It holds the phone quite firmly if you secure it properly and is very easy to use.

Second update: I finally broke the mount after almost four years - my bike fell over and hit one of the arms full force (phone not in the mount - it might have survived had the phone been there to support the arm), snapping it off. It still worked well until I broke it, so unless you get a lemon, I'd say you can expect these things to last for years, which is a pretty good deal for the price. I'm ordering a replacement of the same model.Update: After a year and a half, the mount is still working well. The arms don't pop open quite as readily any more (I should see if that's due to debris I can clean out, but I suspect it's at least partly due to the spring losing some force), but otherwise it still works great. The only downside remains the compression lock bolt dial.I use my bicycle as my sole means of personal transportation and ride on both paved and unpaved trails for fun and exercise. A good handlebar mount is a necessity, as I use it for tracking workouts and navigation on longer rides on unfamiliar roads.This is easily the best handlebar phone mount of a half dozen I've had over the last several years. The four corner clamp style securely holds my phone (currently a Samsung Galaxy S8 Active; I previously had an HTC One m7 and an HTC 10 that I used with other mounts; review would hold true for them as well) even on unpaved trails and bumpy deteriorating streets, unlike several other models that failed to hold my phone when I hit potholes, resulting in smashed screens. Phone mounts with side and top clamps have variously blocked buttons, the charge port, and the audio jack, and a couple have had edges that prevent side- or top-swiping on the screen or blocked tapping on virtual buttons close to the edge, while this mount leaves everything on the phone accessible. Silicone web styles have had a tendency to slip off from vibrations riding on very uneven road conditions and obstruct the physical or virtual navigation buttons (Back, Home, Task-switcher/Menu) and top corners of the screen, while this mount is secure and leaves everything accessible, and it is additionally MUCH more durable than silicone webbing, which has always broken within four months of heavy use (strapping the phone on and removing it multiple times a day).The ratcheting dial and quick release make locking the phone in place and removing it easy and intuitive. The dial turns easily and locks the phone with just a few twists. The placement of the release switch means I can hook my thumb over the bottom of the phone, exerting pressure toward the top of the mount, and hit the release with my middle or index finger, causing the locking arms to slide open easily while preventing my phone from falling out of the cradle, as it's still held by one corner until I grip it between my thumb and index/middle finger(s). I might not be explaining the process well, but it is easy, intuitive, and has a low risk of dropping the phone while removing it with one hand (if one wanted to be very careful, one could use two hands, but I honestly don't think it's necessary thanks to the release design). It may be less convenient for left-handed people (the switch is on the right underside of the mount in the default rotation position, so it's easy to hit it and hold the phone with my right hand only when removing it), though the 360 degree rotation should allow one to position the switch on the top-left of the underside and perform a similar maneuver with the left hand, gripping the top of the phone rather than the bottom (with similar options for landscape mounting positions). In all, the lock and release are very good designs.The one downside is that the tool-free design for the compression lock for the ball joint (allowing the 360 degree rotation and free range of motion for angling the screen) requires a lot of force to lock the joint and hold the phone steady for riding on uneven road surfaces. Exerting this much force only with my fingers is possible for me, but not very comfortable, and someone with weaker finger strength may have difficulty locking the joint so that it holds for long periods on uneven road/trail surfaces. Work gloves with a high-friction surface (e.g. suede or a synthetic equivalent) help with both exerting the required force and comfort while doing so, as do full-finger bike gloves (though my work gloves have more padding in the finger tips, which makes them the more comfortable choice). This won't be an issue for people riding mostly on smooth roads/paved trails, as the compression lock doesn't need to be secured as tightly to hold the phone orientation when riding on smoother surfaces.I wholeheartedly recommend this mount over every other style and brand I've tried.

I did a lot of research on this item before I purchased it. It mattered to me as I was spending $10-15 to protect a $700 investment in my phone. I have to say I am very pleased with my decision and this product. It is well made. I bike roughly 12 miles, one way, from work through streets and dirt. There are a lot of bumps and vibrations and I have no concern that my phone might pop out/off. The fingers that secure the phone are both adjustable and flexible. I have a Galaxy S7 Active and it easily fits. The ratcheting adjuster holds the phone perfectly secure. I did check to see if my Galaxy Tab e would fit, and it is too big (But it's not technically a phone so that should not be a surprise ;-) My only complaint, if you even want to call it that, is that the mount should start off larger and end larger. The shims allow you to mount on something very small, but I could not mount it on the thickest part of my handlebars.