Over the last year I have listened to many bluetooth speakers and this one has the most accurate sound reproduction.
Others can initially sound better with their extra bass or spatial tweeters, but longer listening sessions demonstrate that those with enhanced sound will play some songs better and some worse.
For consistent and accurate reproduction this performs the best.
As an audiophile I have some good gear, previously owned a pair of Dynaudio Evoke 50's, current speakers are hand made DIY speakers, built to match the Dynaudio Confidence 30.
I have owned and listened to a JBL Charge 5, in comparison this had more bass, similar mids and a lack of highs. The bass however was often very boomy on songs which didn't need or have that much bass.
Also owned and listened to the Soundcore Motion X600. This was an intersting one as the additional spatial speaker added some great highs. The soundstage on this speaker is amazing, producing many sounds outside of the speaker itself. However while on some tunes some specific aspects sounded better, on most tunes it inaccurately reduced some sounds. A good example was Eric Claption unplugged, the piano solo took on an ethereal sound coming from 30cm left of the speaker and floating beautifully in the air. However this was done at the cost of reducing the bass guitar and percussion instruments.
Further on the x600 there were many vocals which just sounded awful.
Have also listened to the Bogasing S8, Bose Soundlink Flex, Tribi Xsound go, Notabrick and a few other lesser known ones.
In addition to the accurate sound reproduction the speaker has a good battery life, around 6-7 hours when played at full volume, longer obviously at moderate volumes.
When turned up to the max volume, it has no discernible distortion and zero distortion when played below the max.
Of course nothing is perfect, if I could tweak this speaker I would add an additional super-tweeter, potentially angle the full range drivers outwards to widen the soundstage and include a full graphic equalizer in the app.