Short answer: both are discontinued, so this only matters if you are buying used, though neither ranks well in its class. Used, the Bose SoundLink Color II is the better pick: it ranks #125 of 175 medium speakers by sound quality (rated 2.7/5), against #172 (rated 2.0/5) for the Zealot S61. Both are rated below 3.0/5 among the 175 medium speakers, and the EarFun Uboom L, ranked #2 at $49.79, is a better place to start if sound quality matters.
The Bose SoundLink Color II is the better-sounding option. Soft-touch rubber coating is comfortable to hold and tough enough for bumps and scrapes. It plays in stereo from a single unit, unlike the Zealot S61. The catch: Boosted bass on Color II.
The Zealot S61 is the longer-running, tougher choice. 20W output, IPX7 waterproof, exceptional 40-hour battery life, Bluetooth 5.2, TWS stereo pairing, compact 1.5 lbs (665 g) design, single full-range driver, built-in microphone, AUX input, USB-C charging. It is rated for 40 hours of battery against 8 for the Bose SoundLink Color II. It is rated IPX7 against IPX4 for the Bose SoundLink Color II. It keeps a wired aux input, which the Bose SoundLink Color II lacks. The catch: Sounds like a soup can, no bass at all.
Buy the Bose SoundLink Color II only if you find one used in good condition; both are discontinued, and it is the better rated of the two. For a new speaker, start with the EarFun Uboom L instead.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bose SoundLink Color II | Zealot S61 | |
|---|---|---|
| Price | $139.00 Discontinued | $20 Discontinued |
| Ranked | #125 of 175 in Medium Size Portable Bluetooth Speakers | #172 of 175 in Medium Size Portable Bluetooth Speakers |
| Battery Life | 8 hours (Manufacturer specified) | 40 hours (Manufacturer specified) |
| Party Mode | Yes (Bose Party mode) | - |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (600 g) | 1.5 lbs (665 g) |
| IP Rating | IPX4 | IPX7 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.2 |
| Dimensions | 5.2” x 5” x 2.2” (132 x 127 x 56 mm) | 4.1” x 4.1” x 6.7” (103 x 103 x 170 mm) |
| Drivers | 2x 40mm full-range drivers | 66mm full-range |
| App | Yes (Bose Connect) | No |
| EQ | No | No |
| Built-in Microphone | Yes | Yes |
| Stereo | Yes | No (single full-range driver) |
| Omnidirectional | No | No |
| Power Input | Micro USB | USB-C |
| Power Bank | No | No |
| Aux Input | No | Yes |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC, AAC | SBC (inferred; additional codecs unverified) |
| Amplifier Power | - | 20W |
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Prices on this page were last checked October 12, 2026 at 4:13 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
Bose SoundLink Color II: $139.00 Discontinued Amazon $139.00 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 →
| Released | May 2017 (9 years ago) |
|---|---|
| App | Yes (Bose Connect) |
| Aux Input | No |
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC |
| 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) |
| 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
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Zealot S61: $20 Discontinued eBay
Pros: 20W output, IPX7 waterproof, exceptional 40-hour battery life, Bluetooth 5.2, TWS stereo pairing, compact 665g design, single full-range driver, built-in microphone, AUX input, USB-C charging
Cons: Sounds like a soup can, no bass at all. Weird frequency response all over. Discontinued and no longer sold new.
Full Zealot S61 review and specifications →
| Released | Feb 2022 (4 years ago) |
|---|---|
| Amplifier Power | 20W |
| App | No |
| Aux Input | Yes |
| Battery Life | 40 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Bluetooth Version | 5.2 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 4.1” x 4.1” x 6.7” (103 x 103 x 170 mm) |
| Drivers | 66mm full-range |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | No (single full-range driver) |
| TWS | Yes |
| Weight | 1.5 lbs (665 g) |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons