Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Soundcore Boom Go 3i ranks #2 of 62 small speakers by sound quality at $59.98; the Xiaomi Sound Outdoor ranks #46 of 179 medium speakers by sound quality at $49.99.
The Soundcore Boom Go 3i is the longer-running, lighter pick. A tough, floating mini speaker with full waterproofing, a long battery and a detachable strap, built for travel and the outdoors. It is rated for 24 hours of battery against 12 for the Xiaomi Sound Outdoor. At 0.8 lbs (380 g) it weighs noticeably less than the Xiaomi Sound Outdoor at 1.3 lbs (597 g). It has an adjustable EQ, which the Xiaomi Sound Outdoor lacks. The tradeoff: This is still a 15W mono speaker: bass impact and stereo width are limited, and critical listeners may find the upper treble piercing or metallic.
Why pick the Xiaomi Sound Outdoor: An affordable waterproof outdoor speaker with a separate tweeter, decent battery life and linking to many more speakers. Watch for: Bass reach is limited for the cabinet size, with a rated lower limit of 60Hz, and the boosted bass gets somewhat uncontrolled at high levels.
Buy the Soundcore Boom Go 3i at $59.98 if you want a small speaker. Buy the Xiaomi Sound Outdoor at $49.99 if you want a medium speaker instead.
Want more options? Browse the full Portable Bluetooth rankings.
Prices on this page were last checked November 11, 2026 at 3:26 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Soundcore Boom Go 3i | Xiaomi Sound Outdoor | |
|---|---|---|
| Price | $59.98 | $49.99 |
| Ranked | #2 of 62 in Small Size Portable Bluetooth Speakers | #46 of 179 in Medium Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 12 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | Yes |
| EQ | Yes | No |
| IP Rating | IP68 | IP67 |
| Party Mode | Yes (Auracast) | Yes (Speakersync, up to 100 speakers) |
| Power Bank | Yes (USB-C) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | Pointing up | No |
| TWS | Yes | Yes |
| Weight | 0.8 lbs (380 g) | 1.3 lbs (597 g) |
| Bluetooth Version | 6.0 | 5.4 |
| Amplifier Power | 15W | 30W |
| Dimensions | 4” x 4.2” x 1.8” (102.1 x 105.9 x 45.5 mm) | 7.7” x 2.7” x 2.6” (196.6 x 68 x 66 mm) |
| Drivers | 25mm tweeter + 42mm woofer + passive radiators | 20W woofer, 10W tweeter + 2x passive radiators |
| Maximum SPL | 92dB (Manufacturer specified) | - |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | Yes (detachable strap) | - |
| Frequency Response | - | 60Hz - 20kHz (Manufacturer specified) |
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