Detailed comparison and review of Soundcore Liberty 4 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 | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | Headset | |
|---|---|---|---|
| Weight | 55 g | - | |
| Colour | Midnight black | - | |
| Protection | IPX4, water-resistant | - | |
| Recommended Use | Portable electronics | - | |
| High-Resolution Audio | Yes | - | |
| Tracking Data | Heart rate | - |
| SOUND QUALITY | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Headphones Form Factor | In-ear | - | |
|---|---|---|---|
| Connectivity Technology | Wireless | - | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Audio Codec | LDAC | - | |
| Active Noise Cancelling | Yes | - | Soundcore Liberty 4 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | - | |
| Sound Effects | 360° Spatial Audio | - | |
| Frequency Response | Up to 40000 Hz | - | |
| Features | MultiPoint Technology, ACAA 3.0 technology | - |
| MICROPHONE | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Noise Cancelling | Yes | - | Soundcore Liberty 4 microphone can cancel out ambient noise. |
| Microphones Included | 6 | - |
| REMOTE CONTROL | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Controls | Answer/end, play/pause, squeeze control, ANC/transparency/normal | - |
|---|
| FEATURES | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Features | HearID 2.0 Technology, Dynamic Head Tracking | - | |
|---|---|---|---|
| Sensors | Gyroscope | - |
| BATTERY AND CHARGING | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Battery Type | Headphone battery rechargeable - wireless charging | - | |
|---|---|---|---|
| Battery Life | 9 hour(s) | - | |
| Battery Life Details | Continuous playback: up to 9 hours Continuous playback (with included charging case): up to 28 hours |
- | |
| Charging Time | 1 hour(s) | - |
| OTHERS | Soundcore Liberty 4 | Poly Savi 8240-M D2 |
|---|
| Included Accessories | Charging case, CloudComfort ear tips (S/M1/M2/L)) | - | |
|---|---|---|---|
| Compliant Standards | IPX4 | - | |
| Service & Support | Limited warranty - 18 months | - |
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