Removable, replaceable battery ; Great sound quality ; Handy shoulder strap

Default tuning is a touch bass-happy ; It’s not cheap

One of the best mid-size portable speakers around. Those who already own an older Xtreme don’t need to upgrade to the JBL Xtreme 4 but there are some welcome upgrades in tow, including a long-lasting, removable battery. But the key draws are, as ever,...

Robust, rugged build ; Nice to use ; Clear and detailed sound ; Tight, weighty bass

Design might not appeal to everyone ; No built-in mic for calls ; No aptX support

The Xtreme 4 might look beefy, rugged and uncompromising but the sound quality on offer is anything but. It’s another hugely engaging and entertaining Bluetooth speaker for the brand

Full-sounding, well-defined audio ; Limited distortion at louder volumes ; Brilliant battery life

Default EQ settings lack low-end impact ; Better value, cheaper alternatives exist ; Exterior design lacks sex appeal

JBL’s latest Xtreme Bluetooth speaker plates up each musical element with clarity and distinction while introducing neat new features to build on the strengths of its predecessor. It's a large and rugged outdoorsy speaker that doesn’t go all out on...

Warm, rich, and dynamic sound Clear at higher volumes Insane 30-hour battery life Replaceable battery IP67 waterproof rating

Expensive No AUX input

“The JBL Xtreme 4's bold and sweet sound, boundary-pushing battery, and rugged design make it the premium Bluetooth speaker to beat this year.”

Plays both loud and well ; IP67 rated ; Multiple compatible devices can be linked (Partyboost/Auracast) ; Replaceable battery

Relatively unwieldy as a travel speaker ; Price ; Not backward compatible with older JBL models (with Connect or Connect+)

The JBL Xtreme 4 is an extremely competent portable Bluetooth speaker with impressive battery life, great sound, and enough muscle to play really loud without distortion. Virtually impervious to the elements, this speaker lives up to its name whether...