Summary: Having moved from similar priced Denon C751 headphones I have to say I'm very impressed with these B&W's. The bass response is just as strong but with much more clarity and coherence with the mid range. I had alot of problems with the fabric filter on the Denon's so the metal design of the B&W is reassuring but it does mean a slightly harsh top end.
Summary: I love these headphones. They sound absolutely fantastic once you learn how to fit them properly - find the right pad size, and the technique of tugging the top of your ear as you push the bud into your ear, to create a firm and lasting seal. The only down-side is the cable seems to break internally after a certain amount of use, causing one or both headphones to suddenly become 1/10th as loud.
Summary: Amazing until one of the earphones stops working. Has happened once to me and I've read about plenty of other owners having the same issue. To their credit BW replaced my set very quickly, for free, and they've been fine since. However I'm slightly concerned it might happen again and they'll be out of the warranty period. Sound = truly fantastic and WELL worth the money. Cables are strong and thick and don't tangle as easily as other earphones.
Summary: I did not buy on Amazon - as I found a large High St store with a 20% discount. I really wanted to try these before buying and went to a high end audio shop, but alas, as other stores said, they will not allow testing for hygiene reasons. I must have weird ears as I have dozens of pairs of in ear headphones/headsets. and none stay in while walking let alone exercising. My goto reference headphone is the multi award winning AKG K451.
Summary: I bought these to wear running. I already have a pair of P3s, and find the sound and build quality of them to be excellent, so after trying some cheaper sports headphones to little avail, decided to bite the bullet and buy these C5s. First off, they really do stay in my ears firmly (typical in ear buds fall out walking, let alone doing anything else).
Summary: Over elaborate packing which is actually quyite difficult to undo and destined for landfill is not a good start to the experience. Mangd to get a good fit in one ear, the other ear defies any combination fo the 4 supplied sizes of insert which by the way are quite hard to get on and off - a good thnig once you have decided on the size.
Summary: For me a decision to buy these is going to based on what you're after. You can get better audio quality for the money, but can you get a better complete package? We'll start with audio as .. well.. that's what they're for. Results after 20 hours burn-in, they do seem to stabilise over time & I don't think these have finished yet. *Like all IEMs you need these deep in the ear canal for best results. Have a play with the tips to find out what's best for you.
Summary: After using them for 12 months commuting I read a review recommending them for training (PC Mag). Within 6 weeks the volume/pause buttons on the cable stopped working. I opened it, cleaned out the moisture and sweat and resealed it with glue. Warning, do not use them for running or jogging as the moisture/sweat will penetrate the volume/pause buttons. The right speaker stopped working after 18 months use.
Summary: Final year university student reviewing these here. I purchased these earphones from ebay, for the price of £70. The authenticity of these was confirmed from Bowers and Wilkins customer services. Before reviewing the sound, let me first bring up the bad points: 1) After a week of owning these as new, the iphone remote control stopped working. Reasons for are as of yet unidentified. 2) The adjustable loop, deemed "ingenious" is somewhat flawed.