In depth comparison and review of JBL Under Armour True Wireless Flash and Devialet Gemini. 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 | Devialet Gemini |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 16 g | - | |
| Dimensions & Weight Details | - | Charging case: 5.8 cm x 7.4 cm x 3.1 cm / 76 g Earbud: 1.8 cm x 3.3 cm x 1.5 cm / 8 g |
|
| Colour | Black | Matte black | |
| Protection | Waterproof, sweat-resistant, IPX7 | Splashproof, IPX4, dust-proof | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | Devialet Gemini 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) | - | |
| Bluetooth Audio Codec | - | aptX | |
| Active Noise Cancelling | - | Yes | Devialet Gemini are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Internal Delay Compensation technology | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 22000 Hz | 5 - 20000 Hz | JBL Under Armour True Wireless Flash offer a larger frequency range than Devialet Gemini. |
| Total Harmonic Distortion (THD) | - | <0.1% | |
| Sensitivity | 95 dB | - | |
| Impedance | 14 Ohm | - | |
| Max Sound Pressure | 113 dB | - | |
| Diaphragm | 5.8 mm | 10 mm | Devialet Gemini have a thicker diaphragm than JBL Under Armour True Wireless Flash. |
| Features | TalkThru technology, JBL Charged Sound, Ambient Aware | Ear Active Matching, Pressure Balance Architecture |
| MICROPHONE | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Sensitivity | -25 dBV/Pascal | - |
| REMOTE CONTROL | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| Controls | Power on/off, answer/end, microphone on/mute, play/pause, next/previous track, reject call, voice assistant, TalkThru button | Play/pause, voice assistant, ANC/ambient |
|---|
| CABLE | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| Cable Type | - | Charging cable - detachable |
|---|
| FEATURES | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| Features | True wireless | Touch control | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Now | Siri, Google Assistant |
| BATTERY AND CHARGING | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 85 mAh | - | |
| Battery Life | 5 hour(s) | 6 hour(s) | Devialet Gemini lasts longer on a single charge than the JBL Under Armour True Wireless Flash. |
| Battery Life Details | - | Continuous playback (noise cancelling ON): up to 6 hours Continuous talk: up to 4 hours Continuous talk (noise cancelling OFF): up to 4.5 hours Continuous playback (with included charging case): up to 24 hours |
|
| Charging Time | 2 hour(s) | 1.5 hour(s) | Devialet Gemini recharge faster than JBL Under Armour True Wireless Flash. |
| Included Qty | 2 | - |
| OTHERS | JBL Under Armour True Wireless Flash | Devialet Gemini |
|---|
| 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) | Charging case, charging cable, 4 pairs of ear tips (XS, small, medium, large) | |
|---|---|---|---|
| Software Included | MapMyRun premium membership (12 months) | - | |
| Compliant Standards | IPX7 | IPX4 | |
| Service & Support | Limited warranty - 1 year | - |
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