In depth comparison and review of Erato RIO 3 and Sennheiser CX 150BT. 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 150BT |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | Earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 4.6 cm | - | |
| Width | 5.1 cm | - | |
| Depth | 3.4 cm | - | |
| Weight | 14 g | 12 g | Sennheiser CX 150BT are lighter than Erato RIO 3 headphones. |
| Colour | Yellow | Black | Turquoise | Green | Red | Silver | Black | White | |
| Protection | Sweat-resistant, IPX5, water-resistant | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Erato RIO 3 | Sennheiser CX 150BT |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | Sennheiser CX 150BT 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), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | SBC, AAC, aptX | SBC, AAC | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 17 - 20000 Hz | Sennheiser CX 150BT offer a larger frequency range than Erato RIO 3. |
| Total Harmonic Distortion (THD) | - | 0.5% | |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | 28 Ohm | |
| Max Sound Pressure | - | 100 dB | |
| Diaphragm | 14.2 mm | - |
| MICROPHONE | Erato RIO 3 | Sennheiser CX 150BT |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | On-cable | |
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Erato RIO 3 | Sennheiser CX 150BT |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | 3-button remote |
|---|
| CABLE | Erato RIO 3 | Sennheiser CX 150BT |
|---|
| Cable Type | - | USB-C charge cable |
|---|
| BATTERY AND CHARGING | Erato RIO 3 | Sennheiser CX 150BT |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | 130 mAh | - | |
| Battery Life | 8 hour(s) | 10 hour(s) | Sennheiser CX 150BT lasts longer on a single charge than the Erato RIO 3. |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
- | |
| Included Qty | 2 | - |
| OTHERS | Erato RIO 3 | Sennheiser CX 150BT |
|---|
| Included Accessories | - | 4 pairs of ear tips (XS, S,M, L) | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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