Xiaomi spin-off brand Poco has partnered with Bose to help its new F8 phones stand out in an increasingly crowded market. Both the F8 Pro and F8 Ultra feature stereo speakers designed collaboratively with the audio company, and the Ultra goes one step further by including a subwoofer too.

Both new F8 phones feature the same dual stereo speakers tuned by Bose, though you’ll have to buy the Ultra if you want the benefits of the subwoofer as well, which Poco says delivers “deeper, more impactful bass.” Additionally, there are two sound profiles tuned by Bose engineers: a Dynamic mode that delivers extra bass, and a Balanced option that emphasizes vocals and a more even soundstage.

“By combining Bose’s expertise in acoustic engineering with Poco’s innovation in design and technology, Poco F8 Series achieves a level of clarity and depth that redefines what’s possible in mobile sound,” said Nick Smith, president of audio technology and chief strategy officer at Bose.

The two phones are otherwise fairly typical affordable flagships. The F8 Ultra has a more powerful Snapdragon 8 Elite Gen 5 chipset, with a large 6.9-inch OLED display, triple 50-megapixel rear camera, and wireless charging. The F8 Pro uses last year’s Snapdragon 8 Elite, a smaller 6.59-inch screen, and downgrades to each of the three rear lenses. Both have IP68 ratings though, plus batteries bigger than 6,000mAh, which should deliver decent longevity.

The F8 Pro starts from $579, while the Ultra is available from $729, though a $50 early bird discount is available at launch. The two phones were announced alongside a pair of sub-$400 tablets, the Pad X1 and Pad M1, both of which lean on high resolution displays and Dolby Atmos speakers to serve as good value entertainment options.