Detailed comparison and review of JBL Under Armour Project Rock True Wireless X and Poly Savi 8240-M D2. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | JBL Under Armour Project Rock True Wireless X | Poly Savi 8240-M D2 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | Headset | |
|---|---|---|---|
| Colour | Black | - | |
| Protection | Waterproof, sweat-resistant, IPX7 | - | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | JBL Under Armour Project Rock True Wireless X | Poly Savi 8240-M D2 |
|---|
| Headphones Form Factor | In-ear | - | |
|---|---|---|---|
| Connectivity Technology | Wireless | - | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.0 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Noise Isolating | Yes | - | JBL Under Armour Project Rock True Wireless X are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 22000 Hz | - | |
| Sensitivity | 96 dB/mW | - | |
| Impedance | 14 Ohm | - | |
| Max Sound Pressure | 96 dB | - | |
| Diaphragm | 5.8 mm | - | |
| Features | TalkThru technology, JBL Charged Sound, Ambient Aware | - |
| MICROPHONE | JBL Under Armour Project Rock True Wireless X | Poly Savi 8240-M D2 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Sensitivity | -25 dBV/Pascal | - |
| CABLE | JBL Under Armour Project Rock True Wireless X | Poly Savi 8240-M D2 |
|---|
| Cable Type | USB-C charge cable - detachable | - |
|---|
| BATTERY AND CHARGING | JBL Under Armour Project Rock True Wireless X | Poly Savi 8240-M D2 |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 120 mAh | - | |
| Battery Life | 10 hour(s) | - | |
| Battery Life Details | Continuous talk: up to 10 hours Continuous playback: up to 10 hours Continuous playback (with included charging case): up to 50 hours |
- | |
| Charging Time | 2 hour(s) | - | |
| Included Qty | 2 | - |
| OTHERS | JBL Under Armour Project Rock True Wireless X | Poly Savi 8240-M D2 |
|---|
| Included Accessories | Carrying case, 3 pairs of ear tips, 3 pairs of EarFins, sticker, USB-C charging cable, charging case (1500 mAh) | - | |
|---|---|---|---|
| Software Included | MapMyRun premium membership (12 months) | - | |
| Compliant Standards | IPX7 | - |
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