In depth comparison and review of JBL Under Armour True Wireless Flash and Razer Hammerhead True Wireless (2021). 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 | Razer Hammerhead True Wireless (2021) |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 16 g | 53 g | JBL Under Armour True Wireless Flash are lighter than JBL Under Armour True Wireless Flash headphones. |
| Colour | Black | Black | |
| Protection | Waterproof, sweat-resistant, IPX7 | IPX4 | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | JBL Under Armour True Wireless Flash | Razer Hammerhead True Wireless (2021) |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.2 | Razer Hammerhead True Wireless (2021) 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 | - | SBC, AAC | |
| Active Noise Cancelling | - | Yes | Razer Hammerhead True Wireless (2021) are equipped with active noice cancellation. |
| 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 Razer Hammerhead True Wireless (2021). |
| Max Input Power | - | 5 mW | |
| Sensitivity | 95 dB | 91 dB/mW | JBL Under Armour True Wireless Flash have higher sensitivity than Razer Hammerhead True Wireless (2021). |
| Impedance | 14 Ohm | 16 Ohm | |
| Max Sound Pressure | 113 dB | - | |
| Diaphragm | 5.8 mm | 10 mm | Razer Hammerhead True Wireless (2021) have a thicker diaphragm than JBL Under Armour True Wireless Flash. |
| Features | TalkThru technology, JBL Charged Sound, Ambient Aware | Google Fast Pair, Razer Chroma RGB |
| MICROPHONE | JBL Under Armour True Wireless Flash | Razer Hammerhead True Wireless (2021) |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Sensitivity | -25 dBV/Pascal | -26 dBFS | |
| Signal-To-Noise Ratio | - | 64 dB |
| REMOTE CONTROL | JBL Under Armour True Wireless Flash | Razer Hammerhead True Wireless (2021) |
|---|
| Controls | Power on/off, answer/end, microphone on/mute, play/pause, next/previous track, reject call, voice assistant, TalkThru button | - |
|---|
| FEATURES | JBL Under Armour True Wireless Flash | Razer Hammerhead True Wireless (2021) |
|---|
| Features | True wireless | - | |
|---|---|---|---|
| Intelligent Assistant | Siri, Google Now | - | |
| Additional Functions | - | Gaming mode |
| BATTERY AND CHARGING | JBL Under Armour True Wireless Flash | Razer Hammerhead True Wireless (2021) |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 85 mAh | - | |
| Battery Life | 5 hour(s) | 6.5 hour(s) | Razer Hammerhead True Wireless (2021) lasts longer on a single charge than the JBL Under Armour True Wireless Flash. |
| Battery Life Details | - | Continuous playback (lighting OFF / ANC OFF): up to 6.5 hours Continuous playback (lighting OFF / ANC OFF / with included charging case): up to 32.5 hours Continuous playback (lighting ON / ANC OFF): up to 5.5 hours Continuous playback (lighting ON / ANC OFF / with included charging case): up to 27.5 hours Continuous playback (lighting ON / ANC OFF): up to 4.5 hours Continuous playback (lighting ON / ANC OFF / with included charging case): up to 22.5 hours Continuous playback (lighting ON / ANC ON): up to 4 hours Continuous playback (lighting ON / ANC ON / with included charging case): up to 16 hours |
|
| Charging Time | 2 hour(s) | - | |
| Included Qty | 2 | - |
| OTHERS | JBL Under Armour True Wireless Flash | Razer Hammerhead True Wireless (2021) |
|---|
| 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) | Ear tips kit, charging case | |
|---|---|---|---|
| Software Included | MapMyRun premium membership (12 months) | - | |
| Compliant Standards | IPX7 | - | |
| Service & Support | Limited warranty - 1 year | Limited warranty - 2 years |
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