Bluetooth Speaker Showdown: Zealot S57 vs DOSS SoundBox... Tested! The air hummed with anticipation as the Zealot S57 and the DOSS SoundBox Ultra faced off on a picnic blanket under a twilight sky. Both promises bound in sound—each a rival in the quest for the perfect wireless companion. The Zealot, with its rugged IPX7 ratings and two-tone pairing trick, billed itself as the adventurer’s speaker, while the DOSS SoundBox Ultra, cloaked in 2.1-channel sophistication, aimed for the connoisseur of home entertainment on the move. First, the Zealot. A dual-driver beast with a 16,000mAh power core, its 80W output surged through its stereo setup, each note a testament to its promise of “party-ready sound.” The IPX7 rating felt less like brag and more like a quiet confidence in rain, sand, or. . . unexpected spills. Its hands-free calling worked seamlessly, but the bass, while punchy, lacked the refined low-end of its opponent. Then, the DOSS SoundBox Ultra. With its 80W prowess and dual DSP technologies, this speaker delivered a deeper, more resonant thump that seemed to shake the grass. The 2.1-channel setup made sense—more layers, more immersion. The 18-hour playtime was impressive, but its 6.5-inch subwoofer brought an aura of home theater to outdoor spaces, fitting snugly between a beach chair and a shady tree. Neutral? Maybe. Objective? Perhaps. But in this showdown, preferences divided. The Zealot was versatile, bold, and unapologetically portable. The DOSS SoundBox Ultra, while equally resilient, had that extra something—a finesse the Zealot couldn’t quite replicate. The verdict? It’s a choice of spirit over subtlety, or power over polish. Certain ears, however, might just linger between the two. (To dive deeper, grab the full test!)