In depth comparison and review of JBL Under Armour True Wireless Flash and JBL Free II. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 16 g | 4.8 g | JBL Free II are lighter than JBL Under Armour True Wireless Flash headphones. |
| Dimensions & Weight Details | - | Earphone: 4.8 g Charging case: 52 g |
|
| Colour | Black | Black | White | |
| Protection | Waterproof, sweat-resistant, IPX7 | Splashproof, IPX4 | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | JBL Free II have a more advanced version of Bluetooth than JBL Under Armour True Wireless Flash. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 22000 Hz | 20 - 20000 Hz | JBL Under Armour True Wireless Flash offer a larger frequency range than JBL Free II. |
| Sensitivity | 95 dB | 100 dB | JBL Free II have higher sensitivity than JBL Under Armour True Wireless Flash. |
| Impedance | 14 Ohm | 16 Ohm | |
| Max Sound Pressure | 113 dB | 95 dB | |
| Diaphragm | 5.8 mm | 5.6 mm | JBL Under Armour True Wireless Flash have a thicker diaphragm than JBL Free II. |
| Features | TalkThru technology, JBL Charged Sound, Ambient Aware | - |
| MICROPHONE | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | -25 dBV/Pascal | -38 dBV/Pascal |
| REMOTE CONTROL | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Controls | Power on/off, answer/end, microphone on/mute, play/pause, next/previous track, reject call, voice assistant, TalkThru button | - |
|---|
| CABLE | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Cable Type | - | USB-C charge cable |
|---|
| FEATURES | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Features | True wireless | Touch control | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Now | - |
| BATTERY AND CHARGING | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | 2 x headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 85 mAh | 55 mAh | JBL Under Armour True Wireless Flash have a higher battery capacity than JBL Free II. |
| Battery Life | 5 hour(s) | 6 hour(s) | JBL Free II lasts longer on a single charge than the JBL Under Armour True Wireless Flash. |
| Battery Life Details | - | (with included charging case): up to 24 hours | |
| Charging Time | 2 hour(s) | 2 hour(s) | The charging of both headphones last the same time. |
| Included Qty | 2 | 2 |
| OTHERS | JBL Under Armour True Wireless Flash | JBL Free II |
|---|
| Included Accessories | 3 pairs of ear tips (small, medium, large), micro-USB charging cable, 3 pairs of wing tips (small, medium, large), charging case (1500 mAh) | 3 pairs of ear tips (small, medium, large), charging case (650 mAh) | |
|---|---|---|---|
| Software Included | MapMyRun premium membership (12 months) | - | |
| Compliant Standards | IPX7 | - | |
| Service & Support | Limited warranty - 1 year | - |
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