Detailed comparison and review of JBL TUNE Flex 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 TUNE Flex | Poly Savi 8240-M D2 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | Headset | |
|---|---|---|---|
| Dimensions & Weight Details | Charging case: 5.15 cm x 2.93 cm x 4.7 cm / 38.6 g Earbud: 2.05 cm x 2.02 cm x 3.49 cm / 4.8 g |
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| Colour | Blue | White | Black | Purple | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | JBL TUNE Flex | Poly Savi 8240-M D2 |
|---|
| Headphones Form Factor | Ear-bud | - | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Connectivity Technology | Wireless | - | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 5.2 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Active Noise Cancelling | Yes | - | JBL TUNE Flex are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Smart Ambient | - | |
| Sound Output Mode | Stereo | - | |
| Sound Effects | Pure Bass | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Sensitivity | 110 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 12 mm | - |
| MICROPHONE | JBL TUNE Flex | Poly Savi 8240-M D2 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Sensitivity | -38 dBV/Pascal | - |
| CABLE | JBL TUNE Flex | Poly Savi 8240-M D2 |
|---|
| Cable Type | USB-C charge cable | - |
|---|
| BATTERY AND CHARGING | JBL TUNE Flex | Poly Savi 8240-M D2 |
|---|
| Battery Type | 2 x headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 55 mAh | - | |
| Battery Life | 4.5 hours | - | |
| Battery Life Details | Continuous playback: up to 32 hours Continuous playback: up to 4.5 hours Continuous playback (ANC OFF / Bluetooth): up to 8 hours Continuous playback (ANC ON / Bluetooth): up to 6 hours Continuous playback (with included charging case): up to 18 hours |
- | |
| Charging Time | 2 hour(s) | - | |
| Included Qty | 2 | - |
| OTHERS | JBL TUNE Flex | Poly Savi 8240-M D2 |
|---|
| Included Accessories | USB-C charging cable, 3 sizes of earhooks, charging case (570 mAh) | - | |
|---|---|---|---|
| Compliant Standards | IPX4, GFSK, π/4 QPSK, 8DPSK | - |
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