In depth comparison and review of Erato RIO 3 and Sennheiser CX Plus. 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 | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 4.6 cm | - | |
| Width | 5.1 cm | - | |
| Depth | 3.4 cm | - | |
| Weight | 14 g | - | |
| Dimensions & Weight Details | - | Earbud: 5.9 cm x 3.38 cm x 4.23 cm / 6 g Charging case: 35 g |
|
| Colour | Yellow | Black | Turquoise | Green | Red | Silver | White | Black | |
| Protection | Sweat-resistant, IPX5, water-resistant | Splashproof, IPX4 | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.2 | Sennheiser CX Plus have a more advanced version of Bluetooth than Erato RIO 3. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, AAC, aptX | SBC, AAC, aptX, aptX Adaptive | |
| Active Noise Cancelling | - | Yes | Sennheiser CX Plus are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Bass Boost | |
| Frequency Response | 20 - 20000 Hz | 5 - 21000 Hz | Sennheiser CX Plus offer a larger frequency range than Erato RIO 3. |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | 14.2 mm | 7 mm | Erato RIO 3 have a thicker diaphragm than Sennheiser CX Plus. |
| Simultaneously Connectable Devices Qty (Multipoint) | - | 1 | |
| Features | - | TrueResponse technology |
| MICROPHONE | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -38 dB | - | |
| Microphones Included | - | 4 |
| REMOTE CONTROL | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | - |
|---|
| CABLE | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Cable Type | - | USB-C charge cable - detachable |
|---|
| FEATURES | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Features | - | Touch control | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | - | Yes | |
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 130 mAh | 55 mAh | Erato RIO 3 have a higher battery capacity than Sennheiser CX Plus. |
| Battery Life | 8 hour(s) | - | |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
Continuous playback (with included charging case): up to 24 hours | |
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | 2 | 2 |
| OTHERS | Erato RIO 3 | Sennheiser CX Plus |
|---|
| Included Accessories | - | 4 pairs of earpads (extra small, small, medium, large), charging case (420 mAh) | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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