Short answer: the Tronsmart Mirtune S100, if you are buying new. The JBL Charge 4 ranks higher than it (#56 vs #84 of 150 medium speakers, 3.5/5 vs 3.1/5) but is discontinued, so only consider it used; the Tronsmart Mirtune S100 is still sold new at $79.99.
What the JBL Charge 4 does well: Doubles as a power bank for charging phones/tablets. The catch: Not stereo.
What the Tronsmart Mirtune S100 does well: At 1.36 kg, Tronsmart Mirtune S100 combines 20W drivers with Bluetooth. The catch: Bass is limited by its ~64Hz specification.
Buy the Tronsmart Mirtune S100 new; the JBL Charge 4 is no longer sold new, so it only makes sense as a used find.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| JBL Charge 4 | Tronsmart Mirtune S100 | |
|---|---|---|
| Price | $94.99 Discontinued | $79.99 |
| Ranked | #56 of 150 in Medium Size Portable Bluetooth Speakers | #84 of 150 in Medium Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 54Hz | ~64Hz |
| Battery Life | 20 hours (Manufacturer specified) | 20 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) | - |
| Stereo | No | Partially |
| Omnidirectional | No | No |
| TWS | No | Yes |
| Weight | 2.1 lbs (960 g) | 3 lbs (1.36 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.3 |
| Drivers | 1x 51x89mm fullrange | 20W drivers |
| Dimensions | 8.7” x 3.7” x 3.7” (220 x 95 x 93 mm) | 9.1” x 3.5” x 3.9” (231 x 88 x 100 mm) |
| Frequency Response | 60Hz - 20kHz (Manufacturer specified) | 50Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 30W RMS | 50W |
| IP Rating | IPX7 | IPX7 |
| Digital Aux Input | No | No |
| Bluetooth Codecs | SBC | SBC |
| App | Yes | Yes |
| EQ | No | Yes |
| Power Input | USB-C | USB-C |
| Strap | No | - |
| Built-in Microphone | - | Yes |
| Wi-Fi | - | No |
Related Speaker Comparisons
More top alternatives to JBL Charge 4:
- Earfun Uboom L vs JBL Charge 4
- Soundcore Motion 300 vs JBL Charge 4
- Soundcore Motion+ vs JBL Charge 4
- Soundcore Boost “upgraded” 2021 vs JBL Charge 4
- Minirig 4 vs JBL Charge 4
Prices on this page were last checked September 30, 2026 at 2:57 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.
As an eBay Partner, we may be compensated if you make a purchase.
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
Tronsmart Mirtune S100: $79.99 Tronsmart eBay
Pros: At 1.36 kg, Tronsmart Mirtune S100 combines 20W drivers with Bluetooth. Claimed 20 hours (manufacturer specified) battery life, ipx7 protection and limited-stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of ~64Hz (-10dB).
Cons: Bass is limited by its ~64Hz specification. There is no companion app. No EQ adjustment.
Full Tronsmart Mirtune S100 review and specifications →
| Amplifier Power | 50W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Bass Extension (-10dB) | ~64Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.1” x 3.5” x 3.9” (231 x 88 x 100 mm) |
| Drivers | 20W drivers |
| EQ | Yes |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | Partially |
| TWS | Yes |
| Weight | 3 lbs (1.36 kg) |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Tronsmart Mirtune S100 vs JBL Grip
- Tronsmart Mirtune S100 vs Sony ULT Field 1
- Tronsmart Mirtune S100 vs Tronsmart Mirtune C3
- Tronsmart Mirtune S100 vs JBL Charge Essential
- Tronsmart Mirtune S100 vs Tribit Stormbox 2
- Tronsmart Mirtune S100 vs JBL Charge 3
- Tronsmart Mirtune S100 vs Soundcore 2
- Tronsmart Mirtune S100 vs Tronsmart Mirtune C3 Plus
- See all 33 comparisons