The Sennheiser CX True Wireless seem to be a worthy upgrade compared to their predecessors; despite this, they’re even cheaper than the CX 400BT and many other true wireless earbuds on the market.

Expansive sound; Improved battery life; Upgraded connectivity; ;

Uncomfortable for smaller ears; Battery life could be longer; Bulky case

The Sennheiser CX True Wireless are a worthy upgrade compared to their predecessors, yet they’re even cheaper than the CX 400BT and many other true wireless earbuds on the market. They offer excellent audio performance, great connectivity, and a decent battery life. Despite not being sold on the design, these buds are still well worth checking out.

Rich bass lines; Improved battery life; Upgraded connectivity; ;

Uncomfortable for smaller ears; No noise cancellation; Bulky case

The best in ear headphone i have so far,,, easy to use and very responsive,, rich bass, awesome mids and clear trebles,, very secured and comfortable to wear even while sleeping.

Assertive, engaging sound; Great interface and usability; Half-decent battery life;

Too bulky for all ear sizes; Can get quite edgy at serious volume; Half-decent battery life;

Terrible microphone, useless for phone calls or online meetings. Doesn't function anything like advertised. I'd expect this quality for a $50 set, not for $200. Professional level price tag, impossible to use for professional purposes like a zoom meeting. Complete rip off, and being refused a return because of Covid!? So I can arrive in person for you to take my money, but not return? Feels like a scam.

Assertive, engaging sound; Great interface and usability; Half-decent battery life;

Too bulky for all ear sizes; Can get quite edgy at serious volume; Half-decent battery life;

Sennheiser came very close to creating the perfect running headphones in the form of the SPORT True Wireless. The open/closed ear tips system is not without flaws but offers more versatility than standard true wireless earbuds.

Exchangeable ear tip design allows for multiple listening modes, Secure fit thanks to wing tips, Lightweight (6.8g per bud), IP54 rating, More 'naturtal' sound than ANC-enabled buds

Charing case is too bulky to sink in your pocket, Admittedly, continuously changing ear tips is a bit of a faff, Space for extra ear tips would be nice in the case, Level of passive noise cancellation might be a bit much for some

The CX True Wireless improve on their predecessor’s sound and features – but the competition has caught up and, in some respects, surpassed what Sennheiser is offering here.

Affordable price, Good seal and comfort, Improved battery life over CX 400BT, If you’re after affordable, non-ANC earbuds Not everyone wants noise cancellation, and if that’s you then these Sennheisers offer a solid listening experience with a few app features to customise the sound.

No ANC, Competition has caught up, Choppy connectivity in busy signal areas, The competition has caught up and, in some respects, surpassed While the CX True Wireless sound better than the previous incarnation, the strength of competition means these aren’t the superior choice anymore.

Interesting in-app features add value for money, but the sonic tuning needs work if Sennheiser’s most affordable proposition is to challenge at this level Excellent app support EQ optimisation Neat extra features Timing issues Bass lacks refinement Treble harshness