Short answer: the Sony ULT Field 3 for better sound quality, the Bose SoundLink Color II for the lower price. The Sony ULT Field 3 ranks #57 of 136 medium speakers at $148. The Bose SoundLink Color II ranks #98 at $107.15, $40.85 cheaper.
What the Sony ULT Field 3 offers: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone. Watch for: Sounds a bit hollow, a bit boosted in the treble. Custom EQ and the ULT bass-boost button can’t be used together - turning on ULT disables the EQ. Bass is very weak with ULT off. Lost to the JBL Charge 6 in a side-by-side comparison despite being the larger speaker.
What the Bose SoundLink Color II offers: Soft-touch rubber coating is comfortable to hold and tough enough for bumps and scrapes. IPX4 splashproof. Supports multipoint pairing to two devices at once. Watch for: Boosted bass on Color II. Not as deep of bass as other models. Lacking midrange detail. Rolled off treble
Buy the Sony ULT Field 3 if sound quality is the priority over the price, or the Bose SoundLink Color II if the price is the priority over sound quality.
Battery life favors the Sony ULT Field 3: rated for 24 hours against 8 hours for the Bose SoundLink Color II.
Water resistance is not close: the Sony ULT Field 3 is rated at IP67 (brief submersion), well ahead of the Bose SoundLink Color II at IPX4 (splashing).
Specifications Side By Side
| Sony ULT Field 3 | Bose SoundLink Color II | |
|---|---|---|
| Price | $148 | $107.15 Discontinued |
| Ranked | #57 of 136 in Medium Size Portable Bluetooth Speakers | #98 of 136 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes (Bose Connect) |
| Aux Input | No | No |
| Battery Life | 24 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Bluetooth Version | 5.2 | 4.2 |
| Built in Microphone | Yes | Yes |
| Dimensions | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) | 5.2" x 5" x 2.2" (132 x 127 x 56 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer | 2x 40mm full-range drivers |
| EQ | Yes (App + ULT button) | No |
| IP Rating | IP67 | IPX4 |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Bose Party mode) |
| Power Bank | Yes (USB-C, 5V/1.5A) | No |
| Power Input | USB-C | Micro USB |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 2.6 lbs / 1.2 kg | 1.3 lbs / 600 g |
| Output Power | 27W | - |
| Digital Aux Input | No | No |
| Discontinued | - | Yes |
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Prices on this page were last checked August 27, 2026 at 10:09 PM 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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The Two Speakers In Full
Sony ULT Field 3: $148 Amazon eBay
Pros: IP67 rated, dustproof and water resistant. 24 hour battery life. App with 10-band EQ. Party Connect with up to 100 speakers. USB-C in/out for charging your phone.
Cons: Sounds a bit hollow, a bit boosted in the treble. Custom EQ and the ULT bass-boost button can’t be used together - turning on ULT disables the EQ. Bass is very weak with ULT off. Lost to the JBL Charge 6 in a side-by-side comparison despite being the larger speaker.
Full Sony ULT Field 3 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 10.1" x 4.4" x 3.1" (256 x 113 x 79 mm) |
| Drivers | 1x 20mm tweeter + 1x 86mm x 46mm woofer |
| EQ | Yes (App + ULT button) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Output Power | 27W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-C, 5V/1.5A) |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 2.6 lbs / 1.2 kg |
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Bose SoundLink Color II: $107.15 Discontinued Amazon eBay
Pros: Soft-touch rubber coating is comfortable to hold and tough enough for bumps and scrapes. IPX4 splashproof. Supports multipoint pairing to two devices at once.
Cons: Boosted bass on Color II. Not as deep of bass as other models. Lacking midrange detail. Rolled off treble. Discontinued.
Full Bose SoundLink Color II review and specifications →
| App | Yes (Bose Connect) |
|---|---|
| Aux Input | No |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 5.2" x 5" x 2.2" (132 x 127 x 56 mm) |
| Discontinued | Yes |
| Drivers | 2x 40mm full-range drivers |
| EQ | No |
| IP Rating | IPX4 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 600 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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