Bluetoothスピーカー 比較

How to choose a Bluetooth speaker in 2026

The Mars Score for Bluetooth speakers weights audio output + quality (40%), battery (20%), durability + IP rating (20%) and connectivity (20%). The category bifurcated: pocket speakers for travel, mid-size for parties, and "boombox" class with subwoofer drivers and 24+ hour battery.

Output power vs perceived loudness

A 30W speaker (output_power_w) sounds dramatically louder than a 10W one — but a 60W speaker is only modestly louder than 30W. Loudness scales logarithmically. Driver size and enclosure tuning matter as much as raw wattage.

IP rating for outdoor use

IP67 (ip_rating) — dust-tight and submersible for 30 minutes — is now standard on premium portables (JBL Charge 6, Sonos Roam 2, UE Megaboom 4). Anything below IPX5 is for indoor use. If you take a speaker to the pool or beach, IP67 is the floor.

Battery: 12 hours is the floor

12 hours of mid-volume playback (battery_life_h) is the entry-level expectation. Boombox-class speakers (JBL Boombox 3, Soundcore Motion Boom Plus) hit 24+ hours. USB-C charging is now universal; older models still on micro-USB age poorly.

Bluetooth version and codecs

Bluetooth 5.3+ with LE Audio (LC3) is the new floor. AAC, aptX, and aptX Adaptive give better-than-SBC quality on supporting phones. Multi-point pairing lets one speaker switch between phone and laptop.

Stereo pairing and Auracast

Two speakers paired as true stereo (PartyBoost, PartyConnect, Auracast) materially improves imaging. Auracast (Bluetooth LE Audio broadcast) is the new open standard replacing proprietary pairing — slowly.

How vsMars scores Bluetooth speakers

Audio and durability weight highest because the speaker that survives drops, splashes, and beach grit lasts five years; the one that does not lasts one. See the formula on the methodology page and curated picks on best Bluetooth speakers.