Short answer: the Teufel Rockster XS is the better-sounding speaker; the Charge 4 is the power bank. The Teufel is a good sounding speaker, though its bass is not quite as deep as others. The Charge 4 doubles as a power bank for charging phones and tablets, but it is not stereo and uses a single oval driver.
Buy the Teufel Rockster XS 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
| JBL Charge 4 | Teufel Rockster XS | |
|---|---|---|
| Price | $94.99 Discontinued | €180 Discontinued |
| Ranked | #62 of 164 in Medium Size Portable Bluetooth Speakers | #35 of 164 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 54Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 14 hours (Manufacturer specified) |
| Bluetooth Latency | 330ms | - |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Connect+ up to 100 speakers) | - |
| Power Bank | Yes (USB-A, 5V/2A) | Yes (USB-A) |
| Stereo | No | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 2.1 lbs (960 g) | 1.6 lbs (720 g) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 4.0 |
| Drivers | 1x 51x89mm fullrange | 65mm woofer + 20mm tweeter |
| Dimensions | 8.7” x 3.7” x 3.7” (220 x 95 x 93 mm) | 2.7” x 3.4” x 7” (69 x 86 x 178 mm) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | - |
| Amplifier Power | 30W RMS | 32W |
| IP Rating | IPX7 | IPX7 |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | aptX |
| App | Yes | No |
| EQ | No | No |
| Power Input | USB-C | Micro USB |
| Strap | No | - |
Related Speaker Comparisons
More worthwhile head-to-heads for Teufel Rockster XS:
- B&O Beosound A1 2nd gen vs Teufel Rockster XS
- JBL Charge 6 vs Teufel Rockster XS
- JBL Flip 6 vs Teufel Rockster XS
- JBL Flip 7 vs Teufel Rockster XS
- B&O Beosound A1 3rd gen vs Teufel Rockster XS
Prices on this page were last checked October 4, 2026 at 9:58 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
JBL Charge 4: $94.99 Discontinued Amazon eBay
Newer model: the JBL Charge 6, ranked higher, rated 4.2/5.
Pros: Doubles as a power bank for charging phones/tablets. IPX7 rated and floats. ~20 hour battery life; wirelessly links with 100+ JBL Connect+ speakers. Measured bass extension of 54Hz (-10dB).
Cons: Not stereo. 1 Oval driver. Boosted bass, top a little rolled off, warm sound. Not as loud as a Charge 3. Discontinued.
Full JBL Charge 4 review and specifications →
| Amplifier Power | 30W RMS |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | 54Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 330ms |
| Bluetooth Version | 4.2 |
| Digital Aux Input | No |
| Dimensions | 8.7” x 3.7” x 3.7” (220 x 95 x 93 mm) |
| Drivers | 1x 51x89mm fullrange |
| EQ | No |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (Connect+ up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/2A) |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | No |
| Weight | 2.1 lbs (960 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL Charge 5 vs JBL Charge 4 and Charge 3 - best JBL charge 5 review 2021? More from alanrossreviews →
- Alan Ross Reviews: jbl Charge 4 unboxing first impressions - vs Charge 3
- Alan Ross Reviews: JBL Charge 5 vs JBL Charge 4 and Charge 3 - best JBL charge 5 review 2021?
- Alan Ross Reviews: W King D8 Mini review vs JBL Charge 4 vs Maxsound Plus
- Alan Ross Reviews: Sony XB33 vs XB32 vs JBL Charge 4 best £120 bluetooth speaker?
- Alan Ross Reviews: JBL Flip 6 vs JBL Charge 4 and JBL Charge 3 - small one or a large one? 🤷♂️
- Flossy Carter: JBL Charge 5 vs JBL Charge 4 vs JBL Charge Essential More from FlossyCarter →
- Naresh Lal: JBL Charge 4 Vs Xdobo X8 Tell me Which one is the BEST?
- Alan Ross Reviews: LG Xboom Go PL7 vs JBL Charge 4 and Sony XB33 - best Bluetooth speaker?
- Head-to-Head Comparisons
Teufel Rockster XS: €180 Discontinued eBay
Pros: Teufel Rockster XS uses 65mm woofer + 20mm tweeter. Its 720 g, claimed 14 hours (Manufacturer specified) battery life, IPX7 protection, aux input and stereo playback make it a practical option for its intended room or portable use. A good sounding speaker for its size.
Cons: There is no companion app. No EQ adjustment. Bass does not reach as deep as others, and it was only sold in Europe. Discontinued.
Full Teufel Rockster XS review and specifications →
| Amplifier Power | 32W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 14 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | aptX |
| Bluetooth Version | 4.0 |
| Digital Aux Input | No |
| Dimensions | 2.7” x 3.4” x 7” (69 x 86 x 178 mm) |
| Drivers | 65mm woofer + 20mm tweeter |
| EQ | No |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Bank | Yes (USB-A) |
| Power Input | Micro USB |
| Stereo | Yes |
| TWS | Yes |
| Weight | 1.6 lbs (720 g) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
- Teufel Rockster XS vs Tribit Xsound Plus 2
- Teufel Rockster XS vs Bose Soundlink Flex 2nd gen
- Teufel Rockster XS vs Bose Soundlink Flex
- Teufel Rockster XS vs Soundcore Boom 3i
- Teufel Rockster XS vs JBL Charge Essential 2
- Teufel Rockster XS vs JBL Charge 5
- Teufel Rockster XS vs JBL Charge 5 Wifi
- Teufel Rockster XS vs Soundcore Motion 100
- See all 23 comparisons