NobleAudio FoKus Rex5 True Wireless Stereo Bluetooth in-Ear Headphones with Microphone, Sound Personalization（Green）

The sound from these is the closest one to the wired IEMs that I have got from any other TWSes (if I compare them to Denon Perl Pro, Technics AZ100, B&W Pi7 S2, Hifiman Swanar Wireless, Sony WF-1000XM4, and Bang & Olufsen Beoplay EX). However, the first impression was not overall that good. They took some time to burn in, then a quite tricky personal sound profiling through Audiodo (took quite many attempts until it was finally OK, but this is the must do thing here since it opens the soundstage and balances hearing differences between left and right ears), and finally tweaking through EQ to get them sound as you want. But final result is well worth the effort.The app is a bit buggy as others have noted. It tends to loose the personal profile some times, but it is still applied as it is stored on earbuds and it also appears visible the other time the buds connect, so its not a showstopper at all. Also, this issue of app occasionally loosing the personal sound profile appeared only after updating the buds to the latest firmware. So this will most probably be fixed in later releases.Yes, and there is some disbalance of how battery discharges for the buds. My left goes down faster than the right with about 20% difference (when left is 20% left, right is 40%). But this is usually a case for most TWSes. Let's see how they will hold up and behave over the time (currently I have them for about 2 weeks).Overall, I am very satisfied with these, mostly because of the sound quality that is the most important thing to me.

I really wanted to hate these when I bought them. I had just purchased the Pi8 but kept hearing that these were better so I bought them just so I can say I tried them. As noted by other reviewers, I was underwhelmed when I first heard them out of the box. However, I took the time to go through the personalized sound profile and it was a complete game changer. If you're trying these or have owned please do yourself a favor and take the 3 minutes to go through the personalization. Fokus, if you're reading this for some reason, you need to emphasize the need to personalize the sound to get the true potential for these. I'd bet a significant portion of the people who return these is because they leave them stock (as most audiophiles do).Onto the comparison with the pi8s. I'll focus on sound as all other aspects (ANC, battery, fit, connectivity etc) are comparable in my experience. I haven't had any major issues with either in that regard. If you are cross-shopping with Pi8, I'd say go with these for most cases. I like these more because they can do 99% of Pi8s sound characteristics but also have noticeably more (better bass). If you listen to most modern-day genres as I do (Reggae, HIp Hop, Pop, Rock, R&B) then these will cover all bases. The only one exception I'd say would be if you primarily listen to Classical, Acoustic, light rock (Cold Play, U2) then I'd say the Pi8 might be better suited primarily because it's cheaper and goes on sale frequently. From a sound quality standpoint, it also has marginally better soundstage. These will also be phenomenal for those genres as well but they are a lot more versatile sonically, which I believe is what you pay for.In the end I kept both but these are my primary with the Pi8 as backup.

It looks like I'm going against the grain a bit in this brief review. The sound of the Rex 5 is really something to behold. I agree that there's nothing quite like it as others have said. At the same time, I found the sound to be a little too intimate for my tastes. it felt too close for me and a little overpowering even after adjustments. Just not spacious enough. I have a Tangzu Heyday IEM and it has a generally rather similar reproduction to the Rex 5 with the proper EQ. Truthfully, I am really bonded to the B&W Pi8. I have them connected to my MBP through the Creative BT-W5 for adaptive aptx, and they sound just wonderful for me. Not trying to take anything away from the Rex 5. They do sound amazing and should be tried. They're just not ear compatible for my tastes. 4.6 out of 5 for the Rex.

Sound fine, maybe great. No software included. They say I should make an appt. W someone in Sweden. I’m gonna give that a try and if it doesn’t work OR they want an annual fee, these are going back. I tried the Rufus app and amazon for support (generic support, no specific knowledge). Will update when I return them or not.

Just got these and they look awesome in green! I think the review that mentioned the left earbud loosing power faster doesn’t understand how master and slave works. One unit always will consume more power because it’s connected to the phone and also has to transmit to the other earbud. I updated my REX5 right after pairing and haven’t experience any settings disappearing ;)))

This is the rex of earphones. I was apprehensive at first since I was not yet familiar with the brand noble but damn after a listening session I have to say..... mate it was like nothing I have heard before..... the depth is a whole nother level with those crisp highs and punchy ass bass..... I can't get enough! Although the app is quite clunky and outdated I can't complain with that spotless sound and gorgeous emerald colour😆😆

Wow the sound is incredible and crisp.

The earbuds stop pairing to my phone