In depth comparison and review of Sennheiser CX SPORT and Erato RIO 3. 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 | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Product Type | Earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 31.85 cm | 4.6 cm | |
| Width | 4.52 cm | 5.1 cm | |
| Depth | 1.43 cm | 3.4 cm | |
| Weight | 15.07 g | 14 g | Erato RIO 3 are lighter than Sennheiser CX SPORT headphones. |
| Colour | - | Yellow | Black | Turquoise | Green | Red | Silver | |
| Protection | Splashproof, sweat-resistant | Sweat-resistant, IPX5, water-resistant | |
| Design | Sports | - | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 | Both headphones have the same Bluetooth version. |
| 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, apt-X LL | SBC, AAC, aptX | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 21000 Hz | 20 - 20000 Hz | Sennheiser CX SPORT offer a larger frequency range than Erato RIO 3. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | - | 100 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | 112 dB | - | |
| Diaphragm | - | 14.2 mm |
| MICROPHONE | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Operation Mode | - | Omni-directional | |
| Sensitivity | - | -38 dB |
| REMOTE CONTROL | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Controls | 3-button remote | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode |
|---|
| CABLE | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Cable Type | Charging cable - detachable | - |
|---|
| BATTERY AND CHARGING | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Capacity | - | 130 mAh | |
| Battery Life | 6 hour(s) | 8 hour(s) | Erato RIO 3 lasts longer on a single charge than the Sennheiser CX SPORT. |
| Battery Life Details | - | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
|
| Charging Time | 1.5 hour(s) | - | |
| Included Qty | - | 2 |
| OTHERS | Sennheiser CX SPORT | Erato RIO 3 |
|---|
| Included Accessories | USB charging cable, cable clip, 4 pairs of ear tips (XS, S,M, L), 3 pairs of ear sleeves (S, M, L), neoprene pouch | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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