Bought these for the sport fit - and as I'm quite happy with the WH-1000xm3 I thought these might be a comparatively good product. But unfortunately, there is a constant hiss in the earbuds (ANC on/off makes no difference), which is constantly noticeable. Plus the ANC makes zero difference, when it's turned on the hiss is so bad that it's actually better to just not have ANC on and put the volume up.

The SP800N's are decent earbuds. The sound quality is okay, connection is great, but some features are fairly weak. For example, the fitment of the earbuds is too broad, and for most these will either be too loose or too tight, depending on chosen wingtip. Furthermore, I found that between 80% and 100% volume, all that changes with the sound is the bass getting heavier, and not necessarily in a good way. At higher volumes, the sound is somewhat overshadowed by the bass, and occasionally a rattling noise can be heard from within the earbuds. Overall not a terrible earbud by any means, but not an exceptional one either.

These headphones sound great and stay in my ear. I had to switch to the big earfins, and the small eartips. The battery life lasts a while. I have two issues with these headphones. The first is the case takes a while to turn off, and thus the battery in the case always depletes pretty fast. I wish the app was able to turn off the case for these. The second is there is no find my headphone option. As these are truly wireless headphones, I wish they had this feature, as a ton of headphones have this feature.

Overall, I have been really happy with the sound quality of the earbuds... when they stay connected. I have always had Bose products and went out on a limb to try Sony after seeing glowing reviewer commentary before release. My wife got me these for father's days and I appreciate the gift, but I often find these frustrating to use when just walking in my neighborhood. When sitting at home, the connection is often fine, but while walking the is often Bluetooth issues causing the left or right earbud to desync or periodically disconnect. This is often accompanied by a squelching noise. This makes listening to podcasts or music inconvenient and unenjoyable. I bought these for travel (I do around 35+ weeks a year on the road) and now I am worried how they will hold up when I am walking through an airport. As one last note, I wish you could listen on just the right earbud...

[This review was collected as part of a promotion.] I finally had a chance to thoroughly test this earbuds in various settings and aspects of my lifestyle. I'm no stranger to Sony's audio products as I first was introduced to their noise canceling audio devices with the WH1000XM2s. Those were quickly replaced with the XM3s and then this week to the XM4s. As much as I love headphones, I find them limiting in use since sometimes you can't always wear headphones. Thankfully Sony answered the call to this dilemma with the WF1000XM3s last year! These were a bit cumbersome to securely fit in your ears and not worry about losing them even when just walking! I found the noise canceling on part with the headphones which really blew me away! However I had far to many moments of losing these since they barely sat right in my ears. They were also not moisture resistant which meant a no go for the gym! Thankfully, Sony once again answered the call with the WF-SP800N and I was given an opportunity to test these units at a marginalized cost to my wallet! I found the SF800Ns to be a bit more bass heavy compared to the WFs, however you were able to remedy that issue with the equalizer on most devices! I thoroughly enjoyed the various options Sony provided to secure these in your ears and not once did I experience potential dread at having lost or misplaced one or even both earbuds during active moments! They also had no issues of becoming wet during intense workouts at the local crossfit gym which is also reassuring! Sadly I found the active noise canceling a bit too lacking when compared to the WFs and attempts to fine tune it amounted to nothing. I also heard complaints from clients during phone calls that I sounded muffled when using the microphone on these earbuds. I think the SP800N have a place in the Sony line up of noise canceling devices however what one gains in water/sweat resistance becomes muddled with the mediocre noise canceling and muddled soundstage of the earbuds. However, it is a learning process for Sony, much like other brands, and I'm sure they will release a new revision next year that will answer all the shortcomings of this model!

Sony has done it again. This is why I stick with Sony and will continue into to do so. The sound is amazing compared to others in its price range. I immediately noticed a difference when I tried these compared to another very popular sport brand. The app is everything I could ask for and the ability to adjust and customize the controls is perfect. Sony always exceeds where others fall short. The interchangeable ear pieces allow for the best fit possible. Noise cancellation is great, of course you could pay more for top tier noise cancellation, but these are enough. Sony's products always speak for themselves but I thought I'd at least share my thought on these. I am extremely happy with these.

The ear wings hurt my ears and the ear tips also get uncomfortable too. I can't get a good seal because the ear tips are not big enough, I wish you guys had bigger sizes of ear tips and maybe foam ear tips. Also I can't use the right earbud individually but it says that you can use both earbuds individually, so I'm guessing my are defective. In conclusion, not comfortable and faulty right bud. I'm very disappointed and I'm going to return them.

[This review was collected as part of a promotion.] These are awesome to use at the gym. I have a very hard time of staying focused and finishing my workout at the jam because I'm so distracted by everything in everyone around me. These noise cancelling headphones really allow me to get into the zone and focus on what I need to do Most which is working out. They feel quite snug in my ear and I have no fears of them falling out on jog or even bending down to pick up a weight. I get about one week of use before I have to recharge them. They easily connect to my android mobile device but remember to keep them in your case because your phone will consistently try to connect even if your in your car.

The sound quality is undeniably good. I've not had the same connection issues as some other reviewers on this site. I'll frame my only (minor) issue as a question: Does Sony have smaller rubber "arcs" for sale? I'm referring to the rubber piece that's supposed to give the earbuds support within your ear. The WF-SP800N comes with Medium and Large sizes. Is there any way to acquire a Small version of this piece?

[This review was collected as part of a promotion.] I was super excited to purchase these because of the sporty look and waterproof features. These turned out to be much better than I'd thought! The fit is perfect for ppl who don't like traditional buds that tend to slip out. Love how they're waterproof so I can use on my runs while sweating. Battery life is very good. For one hour runs, I've been able to use it 5-6 times before recharging. The only thing is the sound quality isn't as clear as in-ear buds, but still really good compared to other brands. I received this at a discounted price in exchange for my honest opinion.