In depth comparison and review of Erato RIO 3 and Sennheiser MOMENTUM True Wireless 2. 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 MOMENTUM True Wireless 2 |
|---|
| 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 | - | Charging case: 7.68 cm x 4.38 cm x 3.47 cm / 58 g Charging case with earphones: 70 g Earphone: 6 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 MOMENTUM True Wireless 2 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.1 | Sennheiser MOMENTUM True Wireless 2 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, aptX | |
| Active Noise Cancelling | - | Yes | Sennheiser MOMENTUM True Wireless 2 are equipped with active noice cancellation. |
| Noise Isolating | - | Yes | Sennheiser MOMENTUM True Wireless 2 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 5 - 21000 Hz | Sennheiser MOMENTUM True Wireless 2 offer a larger frequency range than Erato RIO 3. |
| Total Harmonic Distortion (THD) | - | <0.08% | |
| Sensitivity | 100 dB | 107 dB | Sennheiser MOMENTUM True Wireless 2 have higher sensitivity than Erato RIO 3. |
| Impedance | 32 Ohm | - | |
| Diaphragm | 14.2 mm | 7 mm | Erato RIO 3 have a thicker diaphragm than Sennheiser MOMENTUM True Wireless 2. |
| MICROPHONE | Erato RIO 3 | Sennheiser MOMENTUM True Wireless 2 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Erato RIO 3 | Sennheiser MOMENTUM True Wireless 2 |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | Volume, answer/end, play/pause |
|---|
| CABLE | Erato RIO 3 | Sennheiser MOMENTUM True Wireless 2 |
|---|
| Cable Type | - | USB-C charge cable |
|---|
| FEATURES | Erato RIO 3 | Sennheiser MOMENTUM True Wireless 2 |
|---|
| Voice Control | - | Indirect | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant |
| BATTERY AND CHARGING | Erato RIO 3 | Sennheiser MOMENTUM True Wireless 2 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 130 mAh | - | |
| Battery Life | 8 hour(s) | 7 hour(s) | Erato RIO 3 lasts longer on a single charge than the Sennheiser MOMENTUM True Wireless 2. |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
Continuous playback: up to 7 hours Continuous playback (with included charging case): up to 28 hours |
|
| Charging Time | - | 1.5 hour(s) | |
| Included Qty | 2 | - |
| OTHERS | Erato RIO 3 | Sennheiser MOMENTUM True Wireless 2 |
|---|
| Included Accessories | - | Charging case, 4 pairs of ear tips (XS, S,M, L) | |
|---|---|---|---|
| Service & Support | - | Limited warranty - 2 years |
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