Short answer: the Sony SRS-XB20. It ranks #94 of 136 medium speakers by sound quality at $129; the Harman Kardon Esquire 2 ranks #120 and costs $200, so there is not much of a tradeoff to weigh.
What the Sony SRS-XB20 offers: IPX5 rated pill shape slides easily into a bag. 12 hour battery life. Watch for: Sounds thin at higher volumes. Bass falls away quickly.
What the Harman Kardon Esquire 2 offers: Doubles as a conferencing speakerphone with a 4-mic array and noise/echo cancellation. Flat, compact design packs easily. USB charge-out for topping off a phone. Watch for: Bass is weak, vocal and instrument separation is underwhelming and sounds tinny at high volume
Buy the Sony SRS-XB20. It ranks higher for sound quality than the Harman Kardon Esquire 2 and costs less, which settles it without a real tradeoff to make.
Skip the Harman Kardon Esquire 2 if sound quality matters to you. It ranks near the bottom of the 136 medium speakers.

Specifications Side By Side
| Sony SRS-XB20 | Harman Kardon Esquire 2 | |
|---|---|---|
| Price | $129 | $200 Discontinued |
| Ranked | #94 of 136 in Medium Size Portable Bluetooth Speakers | #120 of 136 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Party Mode | Yes (Partychain up to 100 speakers) | - |
| Weight | 1.3 lbs / 590 g | 0.8 lbs / 0.35 kg |
| IP Rating | IPX5 | IPX4 |
| Bluetooth Version | 4.2 | 4.1 |
| Bluetooth Codecs | SBC, AAC, LDAC | - |
| Dimensions | 7.8" x 2.7" x 2.7" (198 x 68 x 69 mm) | 7.5" x 5.1" x 1.3" (190 x 130 x 34 mm) |
| TWS | Yes | No |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| App | Yes (SongPal) | - |
| EQ | No | - |
| Built in Microphone | Yes | Yes |
| Power Input | Micro USB | Micro USB |
| Power Bank | No | Yes (USB-A) |
| Output Power | 20W | 16W |
| Drivers | 2x 42mm full-range drivers + 2x passive radiators | 4x 1.25" (32mm) full-range drivers |
| Digital Aux Input | No | No |
| Discontinued | - | Yes |
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The Two Speakers In Full
Sony SRS-XB20: $129 eBay
Pros: IPX5 rated pill shape slides easily into a bag. 12 hour battery life.
Cons: Sounds thin at higher volumes. Bass falls away quickly.
Full Sony SRS-XB20 review and specifications →
| App | Yes (SongPal) |
|---|---|
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 4.2 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.8" x 2.7" x 2.7" (198 x 68 x 69 mm) |
| Drivers | 2x 42mm full-range drivers + 2x passive radiators |
| EQ | No |
| IP Rating | IPX5 |
| Omnidirectional | No |
| Output Power | 20W |
| Party Mode | Yes (Partychain up to 100 speakers) |
| Power Bank | No |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.3 lbs / 590 g |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Sony SRS-XB20 vs Yamaha True X Speaker 1A
- Sony SRS-XB20 vs Tribit Stormbox
- Sony SRS-XB20 vs Sony SRS-XE300
- Sony SRS-XB20 vs Bose SoundLink Color II
- Sony SRS-XB20 vs Klipsch Groove/Heritage Groove
- Sony SRS-XB20 vs Marshall Emberton III
- Sony SRS-XB20 vs Ultimate Ears Boom 3
- Sony SRS-XB20 vs Ultimate Ears Boom 4
- See all 73 comparisons
Harman Kardon Esquire 2: $200 Discontinued eBay
Pros: Doubles as a conferencing speakerphone with a 4-mic array and noise/echo cancellation. Flat, compact design packs easily. USB charge-out for topping off a phone.
Cons: Bass is weak, vocal and instrument separation is underwhelming and sounds tinny at high volume. Discontinued.
Full Harman Kardon Esquire 2 review and specifications →
| Aux Input | Yes |
|---|---|
| Battery Life | 8 hours (Manufacturer specified) |
| Bluetooth Version | 4.1 |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.5" x 5.1" x 1.3" (190 x 130 x 34 mm) |
| Discontinued | Yes |
| Drivers | 4x 1.25" (32mm) full-range drivers |
| IP Rating | IPX4 |
| Omnidirectional | No |
| Output Power | 16W |
| Power Bank | Yes (USB-A) |
| Power Input | Micro USB |
| Stereo | No |
| TWS | No |
| Weight | 0.8 lbs / 0.35 kg |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Harman Kardon Esquire 2 vs Tribit Stormbox Mini
- Harman Kardon Esquire 2 vs LG Xboom XG5
- Harman Kardon Esquire 2 vs Ultimate Ears Roll 2
- Harman Kardon Esquire 2 vs LG Xboom Go PL5
- Harman Kardon Esquire 2 vs Sony SRS-XE200
- Harman Kardon Esquire 2 vs Tribit Stormbox Mini+
- Harman Kardon Esquire 2 vs Ultimate Ears Megaboom 4
- Harman Kardon Esquire 2 vs W-King D8 Mini
- See all 71 comparisons

